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In order to better accommodate the dramatically increasing demand for data caching and computing services, storage and computation capabilities should be endowed to some of the intermediate nodes within the network, therefore increasing the data throughput and reducing the network operation cost. In this paper, we design a novel information-centric heterogeneous networks framework aiming at enabling...
In this paper, we propose an energy aware movement-assisted deployment algorithm to achieve complete coverage and load balance for wireless sensor networks. By dividing the target area into several coronas with the same width of sensor communication radius, the optimal deployment density is computed for each corona. To the whole network, the movement of sensors can be treated as two steps. For the...
Multiple MIMO (Multiple Input Multiple Output) modes are the salient characteristics of 802.11n wireless networks. An efficient MIMO mode switching scheme is highly desirable for rate adaptation, which can optimize combination of MIMO mode and MCS (Modulation Coding Scheme) to achieve the maximum system throughput. In this paper, we have proposed and verified three design guidelines for the MIMO mode...
Presently, as mobile computing develops, more attention has been paid to mobile mashups. With mobile data and context information such as GPS location, we are able to get more novel mashups. Nevertheless, most of the researches are simply applications for specific purpose rather than a platform. In this paper, we present a semantic-based mobile mashup system (SMMS) which implements a platform that...
This paper proposes a topology control method based on formation maintenance and nodes in different groups, which mainly involves issues on the network topology variation caused by the inconsistent velocities of all nodes and communication failure between local nodes and different groups in mobile robot team. It embodies the important role of formation maintenance associated with making groups when...
Due to the widespread development of mobile internet, more and more users will transfer to mobile virtual community from web community. This study attempts to understand factors affecting the adoption of mobile virtual community in addition to those affecting other mobile services. An adoption model that reflects the characteristics of mobile virtual community is developed. The model consists of the...
With the rapid development and popularization of wireless communication technologies (WLAN). The Fourth Generation of Mobile Communication, together with 3G and wireless computer network communication and transmit high quality video image rapidly, will be applied and spread widely in people's daily work and live. The rapid development and abroad application of Mobile Learning demand the high quality...
Self-configuration management of mobile ad-hoc networks (MANETs) depends upon the hierarchical architecture and topology change of the network. By analyzing role shift and behavior changes of nodes in the clustering-based MANETs, a self-configuration management model is proposed in this paper. In view of unpredictability of the node behavior, a cluster unit provides the auto-configuration mechanisms...
With the widespread use of mobile devices, authentication and privacy of identification become important issues. We analyzed the security flaws and shortcomings of a delegation-based authentication protocol which was proposed by Caimu Tang, et al., and provided an improved protocol. We use elliptic-curve cryptography and hash chain to ensure the safety of system in our scheme. The research results...
AOMDV protocol is designed for highly dynamic ad hoc networks where link failures and route breaks occur frequently. However, the rapidly changing topology makes the limited power nodes exhaust rapidly, which makes the network split early with the decrease of the networks lifetime. A new multipath protocol called multipath routing protocol for networks lifetime maximization in ad-hoc networks (MRNLM)...
As the handsets integrated the J2ME environment is increasing in recent time. After PhoneME which is one implementation of the J2ME had become an open project, transplanting it to many different platforms become a hotspot for some time. There are some implementations for the online debugging between the PC and specific embedded device. But there isn't a well-designed architecture for the debugging...
Due to the widespread use of cellular phones, various kinds of mobile services have been introduced to improve userspsila convenience, utilization, and entertainment. Since differences exist in technological infrastructures, government policies, cultures, and competitive landscapes, the configurations and utilization of mobile services vary in different countries. In this paper, we describe the differences...
With the development of embedded technology, smart home has been widely used to practice field. Due to the characteristics of cross-platform and faster development life cycle, Java becomes one of the most important language in the mobile application development. From the overall view of application development, this paper describes a Java-based application development platform (JADP) for the mobile...
Recently, there has been a growing interest in monitoring aqueous environments using underwater acoustic sensor network (UASNs), which is considered as a novel tool in exploring ocean also in small aqueous environments such as lakes, rivers. Network topology is a crucial factor in determining energy consumption, capacity and reliability of a network, it's necessary for us to know the feasible architectures...
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