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A MISO cooperative transmission algorithm for clustering wireless sensor network is proposed in this paper. In this algorithm, we choose cooperative nodes according to cooperative threshold, and optimize nodes' transmission power with finite-rate feedback. Then we analyze the implementation process in detail, derive the method of optimizing parameters. In the end verify this algorithm at simulation...
High energy efficiency and lower delay of data delivery are the most critical and fundamental requirements for wireless sensor networks (WSNs). In this paper, EEGDF, as a novel energy efficient geography-based data forwarding algorithm, is proposed to prolong WSN lifetime and reduce multi-hop delay. Firstly, by utilizing dual radio channel cooperation of node and probability-based cooperation listening...
Data transmitted in large scale wireless sensor surveillance networks is highly spatial correlated resulting in transmission of redundant data, which increase the energy consumption. So it has been proposed to select a subset of sensors nodes to transmit their data so as to prevent transmission of redundant data. In this paper, we investigate the ways of selecting sensor nodes and develop a novel...
In order to balance the tradeoff between the energy efficiency and latency which exists in the protocol of the single channel medium access control for wireless sensor networks (WSNs), a novel dual channel-based medium access control (MAC) protocol abbreviated as DCMAC is proposed in this paper. The wakeup channel of the nodes in DCMAC implement the listening based on probability during every listening/sleeping...
A new MAC protocol abbreviated as ELMAC (Energy-efficient and Low-latency MAC) is proposed in this paper. On the basis of SMAC and ASMAC, the carrier-listening technology in physical layer is applied to compulsorily wake up the neighbor nodes within multi-hops in ELMAC, so that the data transmission over multi-hops can be realized during a single listen/sleep cycle, this leads to the low-latency result...
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