Mobile Learning Help to Learners Skills and ability

Although the learners were involved in mobile learning for fairly short periods of time, some mentors reported perceived improvements in their learners’ reading, writing and maths skills. Most improvements were noted amongst those learners initially described as being ‘less able’ or having ‘very limited ability’. Some of these improvements seem to have been due to mentors, and learners themselves, not recognising existing abilities. One mentor reported that a learner ‘perceived reading to be a book based activity but he was able to read texts and information regarding the device very well perhaps his biggest barrier to reading is his self-evaluation of his reading ability, and negative educational experience.

Mobile learning can be used to encourage both independent and collaborative learning experiences

Many learners taking part enjoyed the opportunity to use the mobile devices to learn independently of a group setting for a variety of reasons.For example one mentor who worked with learners experiencing housing related difficulties noted ‘he preferred to work independently, as he felt under no pressure, and could do it all in the evenings’ and another ‘they have said it has been great being able to use materials in private. When they come into the centre it can be embarrassing because everyone can see what they are doing on the computer’. Others welcomed the opportunity to work collaboratively. For example a learner stated ‘it is good learning and helping other people’ and ‘[it is] probably better to work together with new technologies, someone to ask. It also puts some pressure on you to achieve something’.

Mobile Learning Help to Learners Identity and Support

A mentor involved in the project has been working with a homeless young adult who regularly truanted while at school and subsequently left without any qualifications. The mentor reported that as a result of participation in the m-learning project her client has not only developed a greater confidence in his current reading and writing abilities but has also been inspired to seek help to improve his mathematical skills from the local Adult Basic Education Centre. When reporting the young adult’s post-trial attitude to learning the mentor noted that ‘now he knows this is something that he really needs to work on and is now ready to do so’.

Mobile Learning Help to Combat resistance between mobile phone and ICT Literacy

A mentor working with a group of displaced young adults studying ESOL (English for Speakers of Other Languages) reported that, post-participation,a number of learners within the group who had previously avoided using PCs actively sought them out to work on tasks such as writing letters.In fact, for some learners, their computer skills and confidence in those skills were enhanced to such an extent that they felt able to offer support and assistance to their peers.

Mobile Learning Help to Reluctant Learners

The ESOL mentor felt that this aspect of traditional learning can often be the most frightening for those who have not previously engaged with learning. He suggested that, as most of the learners in his group were familiar with games machines such as PlayStations or GameBoys,they were quick to respond to using the project’s mobile devices and likened the XDA II to a ‘turboed Game Boy’. This familiarity with apparently similar technology helped to engage the learners within the class and maintained their interest levels.

Mobile learning helps learners to remain more focused for longer periods

A mentor told our researcher: ‘The group were observed to be remarkably focused and calm during the session when given the devices in contrast to their normal behaviour in the sessions. They were far more focused and gave up to two hours of time to the devices when it is normally difficult to focus them for 15 minutes.’It is possible that this effect was due to the novelty of using mobile devices and whether this is the case or not will become clearer over time.

Mobile Learning Help to Raise Self Esteem

Loaning equipment to young adults to use in their personal environments has resulted in other benefits not directly related to the learning experience.In particular, there have been reports that some of the learners were surprised and proud to be trusted with such expensive and sophisticated technology. For example, one project mentor noted: ‘He took really good care of it. He pointed out that because of his background no one else would have ever trusted him with a mobile. This has meant more to him than the actual device itself as he feels respected.’ It would seem that the mobile devices are prized highly by the young adults who have taken part.Allowing them personal responsibility for the care of the devices enables them to feel trusted and seems to help to build up their self-steem.Another boost to some learners’ self-esteem came when they realised that as experienced users of mobile phones they possessed useful skills which others perceived as important. Some of these learners became ad-hoc mentors to their peers and gained further self-esteem as a result.

Mobile Learning Help to Raise Self Confident

Many mentors observed changes in their learners’ level of general self-confidence. This was not specifically linked to the development of their confidence in using ICT or their confidence in the areas of numeracy and literacy, but linked to self-esteem as discussed above. For example,a mentor supporting traveller education stated ‘low self-esteem and lack of self confidence [was] much improved when working with others,willing to take risks and try things out. Much gained by discussion with others’. Another mentor reported that a learner who used the driving theory test learning materials ‘had not tried it before but by the time he had finished using it he was passing every time. This has given him the confidence to go and learn to drive, as he may not have tried before at the thought of the theory test’.

Artificial Vision for Mobile Robots

The mobile robot systems described in this book were selected from among the best available implementations by leading universities and research laboratories. These are robots that have left the lab and been tested in natural and unknown environments. They perform many different tasks, from giving tours to collecting trash. Many have distinguished themselves (usually with first- or second-place finishes) at various indoor and outdoor mobile robot competitions.

Each case study is self-contained and includes detailed descriptions of important algorithms, including pseudo-code. Thus this volume serves as a recipe book for the design of successful mobile robot applications. Common themes include navigation and mapping, computer vision, and architecture.

To give mobile robots real autonomy, and to permit them to act efficiently in a diverse, cluttered, and changing environment, they must be equipped with powerful tools for perception and reasoning. Artificial Vision for Mobile Robots presents new theoretical and practical tools useful for providing mobile robots with artificial vision in three dimensions, including passive binocular and trinocular stereo vision, local and global 3D map reconstructions, fusion of local 3D maps into a global 3D map, 3D navigation, control of uncertainty, and strategies of perception. Numerous examples from research carried out at INRIA with the Esprit Depth and Motion Analysis project are presented in a clear and concise manner.

Introduction to Autonomous Mobile Robots

Mobile robots range from the teleoperated Sojourner on the Mars Pathfinder mission to cleaning robots in the Paris Metro. Introduction to Autonomous Mobile Robots offers students and other interested readers an overview of the technology of mobility the mechanisms that allow a mobile robot to move through a real world environment to perform its tasks including locomotion, sensing, localization, and motion planning. It discusses all facets of mobile robotics, including hardware design, wheel design, kinematics analysis, sensors and perception, localization, mapping, and robot control architectures.

The design of any successful robot involves the integration of many different disciplines, among them kinematics, signal analysis, information theory, artificial intelligence, and probability theory. Reflecting this, the book presents the techniques and technology that enable mobility in a series of interacting modules. Each chapter covers a different aspect of mobility, as the book moves from low-level to high-level details. The first two chapters explore low-level locomotory ability, examining robots' wheels and legs and the principles of kinematics. This is followed by an in-depth view of perception, including descriptions of many "off-the-shelf" sensors and an analysis of the interpretation of sensed data. The final two chapters consider the higher-level challenges of localization and cognition, discussing successful localization strategies, autonomous mapping, and navigation competence. Bringing together all aspects of mobile robotics into one volume, Introduction to Autonomous Mobile Robots can serve as a textbook for coursework or a working tool for beginners in the field.

Mobile Communication and Socity

Wireless networks are the fastest growing communications technology in history. Are mobile phones expressions of identity, fashionable gadgets, tools for life or all of the above? Mobile Communication and Society looks at how the possibility of multimodal communication from anywhere to anywhere at any time affects everyday life at home, at work, and at school, and raises broader concerns about politics and culture both global and local.

Drawing on data gathered from around the world, the authors explore who has access to wireless technology, and why, and analyze the patterns of social differentiation seen in unequal access. They explore the social effects of wireless communication--what it means for family life, for example, when everyone is constantly in touch, or for the idea of an office when workers can work anywhere. Is the technological ability to multitask further compressing time in our already hurried existence?

The authors consider the rise of a mobile youth culture based on peer-to-peer networks, with its own language of texting, and its own values. They examine the phenomenon of flash mobs, and the possible political implications. And they look at the relationship between communication and development and the possibility that developing countries could "leapfrog" directly to wireless and satellite technology. This sweeping book--moving easily in its analysis from the United States to China, from Europe to Latin America and Africa--answers the key questions about our transformation into a mobile network society.

MOBILE COMMUNICATION RESOURCES

This handbook aims to convey in manageable form recent thinking and research on the social aspects of mobile communication. No handbook especially one that addresses a subject as vast as the way three billion or so people use an endlessly flexible technology can include all related topics. Neither can those that are included be necessarily dealt with to the depth that one might wish. These are the cruel realities that face any editor, and must be resolved in a way that cannot always be to everyone’s satisfaction.

My choice of topics has been guided by the overarching idea that mobile communication
has become mainstream even while it remains a subject of fascination in usage Configurations and social consequences. As such, the handbook aims at examining the
way mobile communication is fitting into and altering social processes in many places
around the globe and at many levels within society. In essence, then, it presents a series of analyses of how the reality of being mobile and in communication with distant information and personal resources affects daily life. Of course, with more than a third of all humans in the world operating under such conditions, it is hard to make precise claims that are at once manifestly universal and useful. Yet, as the chapters in this volume demonstrate, there are some remarkably consistent changes in personal routines and social organization as a result of literally putting mobile communication resources into the hands of people.

The contributors show how mobile communication profoundly affects the tempo,
structure, and process of daily life. Topics discussed include
• who is integrated into mobile communication networks and why.

• how social networks are created and sustained by mobile communication.

• how mobile communication fits into an array of communication strategies including

• he Internet and face-to-face.

• the way traditional forms of social organization are circumvented or reinvented to suit the needs of the increasingly mobile user.

• how quickly miraculous technologies become ordinary and even necessary.

• how ordinary technology becomes mysterious, extraordinary, and even miraculous.
• the symbolic uses of mobile communication beyond mere content.

• the uses of mobile communication in political organizing and social protest, and in marshaling resources.

MOBILE NETWORKING

Mobile communication has become mainstream and even omnipresent. It is arguably the most successful and certainly the most rapidly adopted new technology in the world: more than one of every three people worldwide possesses a mobile phone. This volume offers a comprehensive view of the cultural, family, and interpersonal consequences of mobile communication across the globe. Leading scholars analyze the effect of mobile communication on all parts of life, from the relationship between literacy and the textual features of mobile phones to the use of ringtones as a form of social exchange, from the "aspirational consumption" of middle class families in India to the belief in parts of Africa and Asia that mobile phones can communicate with the dead.

The contributors explore the ways mobile communication profoundly affects the tempo, structure, and process of daily life around the world. They discuss the impact of mobile communication on social networks, other communication strategies, traditional forms of social organization, and political activities. They consider how quickly miraculous technologies come to seem ordinary and even necessary--and how ordinary technology comes to seem mysterious and even miraculous. The chapters cut across social issues and geographical regions; they highlight use by the elite and the masses, utilitarian and expressive functions, and political and operational consequences. Taken together, the chapters demonstrate how mobile communication has affected the quality of life in both exotic and humdrum settings, and how it increasingly occupies center stage in people’s lives around the world.

Mobility granularity and Mobility levels

Mobile host should be able to roaming within a whole
mobile communications system or between different
systems as long as their networks are interconnected.
Networks can firstly be classified according to different
providers and/or technologies. Then one symmetric network
can be further divided into domains, location areas, access
point regions, zones of access points, and logical channels
within one access point. Different mobility evels/granularities can then be defined accordingly,including:

1. Mega-mobility, is the mobility between the networks
   of different providers or technologies (heterogeneous or
   asymmetry networks),e.g. satellite to UMTS to WLAN to
   Bluetooth, etc. One network may includes some domains.
   Macro-mobility, is the mobility between different
   “visited domains” but still within one network. One visited
   domain usually includes several “location areas”.
2. Micro-mobility, is the mobility between different
   “location areas” but still within one visited domain. One
   location area may includes several “access points regions”.

Features of future mobile systems

The key feature of the future mobile communications
systems is the seamless integration of terminals, networks,
and applications (together with users), based on the adaptive
management of the diversity . Diverse resources come
from several aspects. As the value chain of communications
industry shown in Fig. 3, multiple operators and providers
and producers together with various end users lead at last to
the multiple diversity in technologies including:

• Service diversity, voice, data, multimedia, etc.
• Backbone diversity, by different operators, different regions, and/or based on ifferent technologies.
• Access diversity, including both wired and wireless network infrastructures and air interfaces
• Terminal diversity, different capability combination of computing, processing,storage,and communication,with different user interfaces.
  
  

Mobility management for mobile communications

Mobility management is the essential technology that
supports roaming users with mobile terminals to enjoy their
services through wireless networks when they are moving
into a new service area. From the viewpoint of functionality,
mobility management enables communication networks to
track and locate roaming terminals in order to deliver data
packets to the new destination and maintain connections
with terminals moving into new areas . According to the
concept above, mobility management mainly contains two
distinct but related components: location management and
handoff management.

Mobility effects to protocol stack

At the data link layer, mobility based on wireless
networks brings problems of bandwidth, reliability, and
security, for which compression, encryption, and error
correction techniques are needed. Other problems include
fixed or dynamic channel allocation algorithms, collision
detection and avoidance measures, QoS resource
management, etc.

At the network layer, mobility of mobile nodes means
that new routing algorithms are needed in order to change
the routing of packets destined for a moving node to its new
point of attachment in networks. How to track a node’s
movement and how to keep the moving node’s connectivity
are two basic issues at the network layer. This in turn forms
the two main operations of mobility management.

At the transport layer, a end-to-end connection may
mix wired and wireless links. This makes congestion control
a complex task due to the different characteristics of wired
and wireless networks, since packet loss is caused mainly by
high error rates and handoff in wireless networks instead of
because of congestion—the situation on wired links.
Retransmission mechanism based on increasing interval
may lead to an unnecessary drop in the date rate. Function
distribution between the transport and the data link layer is a
new problem caused by mobility.

Next generation mobile systems

Mobile communications will continue to greatly change
the way of people’s life. The tremendous demands from
social market are pushing the booming development of
mobile communications faster than ever before, leading to
plenty of new advanced techniques emerging. Various
mobile devices, wider transmission bandwidth, manifold
wireless and wired networks, and more powerful appliances’
processing capability, together with advances in computing
technology have brought more and more miscellaneous
services to be delivered with more excellent quality.

Next generation mobile systems need the support of all
the advances on new theories, algorithms, architectures,
standards, and protocols. In the near future, more and more
Internet based services like web service can be smoothly
accessed with various mobile devices through the wide
deployed wireless networks. At present, 3G mobile
communications systems are just at the beginning to be
deployed for multimedia data applications, while research
on the fourth-generation (4G) mobile communications has
begun to pave the way for the future [1, 2]. The mobile
personal telecommunications and wireless computer
networks are converging in the coming new generation of
mobile communications. Future mobile communications
systems evolve with the trend of global connectivity through
the internetworking and interoperability of heterogeneous
wireless networks. Roaming in such network architectures is
a very complex situation and it causes many new problems.

Mobility Management for Mobile Communications

The tremendous demands from social market are pushing the booming development of mobile communications faster than ever before, leading to plenty of new advanced techniques emerging. Mobile communi-cations are changing people’s life style in many ways. Behind the scenario, the fantastic characteristic that makes this reality is mobility. This paper studies the basic concepts of mobility for mobile communications, with the attempts of trying to answer the ndamental questions on mobility. A conceptual discussion is made on mobility in the contexts of both computation and communication leading to the illustration of mobile computing. The effects of mobility on both architectures and protocols of networks and communications are analysed. The concept and operations of mobility management for mobile communications are also introduced. New challenges arise in future mobile communications systems with the diversity as the key feature, which lead to the definitions of classified mobility according to different granularities

MOBILITY & MOBILE COMPUTING

Mobility is human’s nature. In the field of computing and communication technologies, to be able to communicate with other persons and access and process information simultaneously while moving has been as a long expectation that causes great deal of efforts having been made to turn the fancy into fact. The following advances in different technical areas provide the possibility of realizing the imagination, including:

1) The advances in VLSI, antenna, and battery technologies, which make small and light portable devices like laptop, personal digital assistants (PDAs), and cellular phone becoming more and more popular.

2) The advances in wireless communications theory,which make miscellaneous wireless networks with different air interfaces (e.g. TDMA, CDMA, FDMA, etc.) and wired infrastructures (e.g. Internet, PLMN, ATM, etc.) available.

3) The advances in software technology, e.g. software engineering, language technology, distributed computing,modern database, etc., which make various mobile services with effective supports facilitate human’s work and life.

MOBILITY CONCEPT

Mobility is the characteristic of an object that can be mobile. In the field of computing technology the mobile object can be in both computations and communications,according to which two new paradigms are incurred as mobile computations and mobile communications by extending the features of the objects in these two areas with mobility.The two paradigms then act as the basic components to construct the new research field mobile computing. This extension is illustrated in Fig. 1. It should be mentioned that computation and communication are always interdependent instead of independent. Mobile computation must base on the support of wireless or wired networks at the same time itself forms the basic techniques for mobile communications.

In more detail, many mobile objects can be distinguished in the field of mobile computing. For mobile computation,objects that can be of mobility are usually some logical computing entities (code, data, or state), including [3]:

1) Mobile process, also know as process migration [4], is a concept in the area of OS. A process is the abstraction of a running application that consists of the code, data and OS state, which can be transferred between systems. Load balancing, fault resilience, eased system administration,and data access locality are the main goals of mobile process.

2) Mobile agent is one of the most popular types of distributed and mobile computing environments.It extends the concept of software object with the attributes and capabilities of mobility, reactivity, autonomy,and collaboration, which can carry both code and data and the thread of control. The main goal of mobile agent is to improve performance and reliability.

As to mobile communications, mobile objects are mostly physical components and can span all the path of service delivery. Mobility scenarios include:

1) Service mobility, means that a personalized service available to the user with one mobile device in one network can still be accessible by another mobile device and/or in another network of different region or operator and operate in the new context.

2) Network mobility, refers to the wireless networks that support the connection to mobile devices. Some wireless connections may be based on an infrastructureless architecture a collection of wireless nodes can dynamically form a network without using any pre-existing
fixed network infrastructure, also know as mobile ad hoc networks, in which the networks are physically “mobile”.

3) Terminal mobility, is the ability of a user device that can roam within a network or between networks with ongoing or following communications still reachable. Many devices now are portable, e.g. laptop and cellular phone.

4) User mobility, means that end-users can access personal services regardless of moving to any network or using any terminal, through unique user identification like a universal personal telecommunication (UPT) number.

This paper focuses on the concept of mobility for mobile ommunications. In more particular, we mainly study such a scenario in which end users are moving with a mobile device, since this is the most common use case and encompass other scenarios.

MOBILITY FOR MOBILE COMMUNICATIONS

Mobility affects mobile communications on all the components, including devices, networks, and services. To a mobile device, besides the physical requirements like weight, size, power, display, and shape, there still exist other functional requirements e.g. different user interfaces suitable to mobility scenario and the computing and communication capabilities distribution. To a service for mobile case, the most important effect is the requirement on adaptation in which a mobile service should be adaptive to different transmission links, different user mobile devices, and different using contexts. In particular here, we focus on the impacts of mobility on both the architectures and the protocols of networks.