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Robotic sensor network (RSN) contains mobile sensors and robots provides feasible solution for many multiagent applications. One of the most critical issues in RSN and its application is how to effectively assign tasks. This paper presents a novel threshold-based task allocation strategy to answer the question particularly for RSN. Firstly, we model the task allocation in RSN to distinguish the discovering...
Cognitive radio (CR) technology can be used to provide flexible mobile multimedia communications. In this article, we investigate energy-efficient design of CR to protect incumbent users, such as broadcasters and telecommunications operators. Power allocation and transmission duration are determined for a CR user exploiting multiple channels. Both energy efficiency of the CR user and interference...
This paper studies efficient complex valued matrix manipulations for multi-user STBC-MIMO decoding. A novel method called Alamouti blockwise analytical matrix inversion (ABAMI) is proposed for the inversion of large complex matrices that are based on Alamouti sub-blocks. Another method using a variant of Givens rotation is proposed for fast QR decomposition of this kind of matrices. Our solutions...
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