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Caching consistency in a MANET environment is an important issue as it is directly related to MANET connectivity. However, existing cooperative caching schemes mostly focus on delta and/or weak consistency. Recently, RPCC was proposed, but it cannot overcome traditional PUSH and PULL methods in terms of ensuring a strong consistency. In this paper, we propose three algorithms that are based on the...
Very often, network users expect to access services relevant to their locations, whilst preserve their privacy without disclose their exact locations. The well-known privacy preserving method is the spatial cloaking technique where exact user locations are blurred into a cloaked region to meet the privacy requirement, e.g. k-anonymity. Most of current solutions are designed with a centralized architecture...
This paper presents a conceptual framework of mobility-aware cooperative caching for minimizing electronic content provisioning cost in Mobile Social Wireless Networks (MSWNET). The MSWNETs are formed by wireless mobile devices sharing common interests in electronic content, and physically gathering in various public settings such as University campuses, work places, malls, and airports. Cooperative...
Peer-to-Peer Session Initiation Protocol (P2PSIP) is a distributed communication system being standardized in the Internet Engineering Task Force (IETF). Since it uses the peer-to-peer paradigm, P2PSIP faces the problems created by Network Address Translators (NATs); even peers located behind NATs need to be able to not only initiate connections to other peers but also accept connections initiated...
A Mobile Peer-to-Peer (MP2P) traffic intelligent management model (BP Neural Network and Intelligent Management, BP-IM) based on neural network is proposed. First, the whole MP2P network is modeled by the semi-distributed structure. Then the BP neural network is introduced to measure and control the MP2P flow effectively. In addition, the corresponding P2P traffic priority table is established and...
In recent years the Department of Defense has aggressively invested in development of an Internet Protocol (IP) based network that interconnects mobile air platforms and ultimately will also connect to the Global Information Grid (GIG) as part of its Net-Centric Warfare initiatives. One of the major visions for the IP based networks is to support interoperable voice communication amongst heterogeneous...
In recent years, a lot of terminal mobility support schemes have been proposed. These schemes mainly focus on providing seamless mobility by reducing the handover delay. They work well when the handover takes place between two overlapping wireless networks. However, in some worst scenario, it is possible that a mobile node (MN) becomes disconnected from the network for some time before it can join...
As the number of mobile users increases, and cell phones become more powerful, delivering multimedia content to them using a centralized infrastructure becomes both expensive and inadequate. Here we study an alternative solution, which leverages local dedicated caches on these devices to opportunistically fulfill other user requests, in a peer-to-peer manner. The problem we study is that of choosing...
Many people from all over the world have been supplied with mobile terminals, and this has increased the computing power of each individual. Based on this increased utilization of mobile terminals, there are new services that are emerging as well. Also, as User Created Contents (UCC) is becoming widely available, the new era of easily sharing contents with others has started. As the result of these...
In this paper, we address the problem of collaborative video caching in ad hoc mobile networks. We consider network portraying static video server with wired interface to gateway node that is equipped with wireless interfaces, other nodes are requiring access to the video streams that is stored at video server. In order to reduce the average access latency as well as enhance the video accessibility,...
The changes in the communication paradigm envisioned for future networks, with peer-to-peer/symmetric attachments gaining momentum and two IP (Internet protocol) versions coexisting, will pose new challenges to mobile communication networks. Traditional IP auto-configuration mechanisms will not work properly, since they were designed mostly having in mind a client-server/asymmetric attachment model,...
With the growing use of dynamic content by mobile content distribution systems, how to manage dynamically changing files has become an important issue, since the cached replicas on different mobile sites must be updated if the originals have been changed. Therefore, this paper proposes a priority based selection method to enhance the efficient utilization of network resource and support the client...
The development of mobile communication technologies and smart portable device has great impact on the society, which makes the ubiquitous computing and seamless service come true. However, a major challenge is that how to provide a software platform supporting personalized and context-aware services and applications. Research on universal service terminal (UST) aims at providing light-weight application...
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