A mobile ad hoc network is a collection of wireless terminals that can be deployed rapidly. Its deficiencies include limited wireless bandwidth efficiency, low throughput, large delays, and weak security. Integrating it with a wellestablished cellular network can improve communication and security in ad hoc networks, as well as enrich the cellular services. This research proposes a cellular-aid...

Advances in mobile technologies have led to a novel form of collaborative innovation (CI), namely participatory sensing, a process in which individuals and communities use increasingly more powerful mobile devices, such as cellular and smart phones, to collect and analyze systematic data. In this chapter, the authors describe experiences with the implementation of innovative collaborative envir...

With the significant increase in cellular data usage, it is critical to better understand the characteristics and behavior of cellular data networks. With both laboratory experiments and crowd-sourcing measurements, we investigated the characteristics of the cellular data networks for the three mobile ISPs in Singapore. We found that i) the transmitted packets tend to arrive in bursts; ii) ther...

Mobile IP is a powerful protocol which supports Internet mobility and scales reasonably with the number of users within a system. Due to the high roundtrip delay of the Internet and due to Mobile IP’s control overhead, Mobile IP causes connections of a mobile node to be interrupted for up to 5 seconds for each change of its attachment point to the Internet. This interruption induces TCP to run ...

Rural areas continue to be plagued by limited data connectivity due to poor and unreliable power infrastructure, poor backhaul connectivity and lack of economic incentives for telecom providers. These factors continue to be an impediment to providing reliable, highly available and bandwidth intensive mobile services and applications to function well in such contexts. This paper presents the des...

The functionalities of the next generation Internet protocol, IPv6, have become increasingly interesting due to the current merging of the traditional cellular mobile communications and the traditional data-communications into the future wireless systems, as e.g., UMTS. IPv6 provides several enhanced functionalities requested for the future mobile systems. In this article the largest advantages...