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Wireless sensor networks (WSNs) usually work under harsh environment, so high packet loss rate is induced by the unreliable and error-prone wireless links. To cope with the problem, a competition and cooperation based reliable forwarding protocol (CCRF) is proposed. In CCRF, the characteristic of dense deployment of sensor nodes and broadcast feature of the wireless channel in WSN are utilized. Specifically,...
Providing efficient and reliable delivery in wireless sensor networks (WSNs) is a challenging problem. A kind of contention-based reliable delivery scheme (CRDS) has been proposed in this paper. By utilizing the characteristic of highly dense deployment of nodes in WSNs and broadcast feature of wireless channels, CRDS forwards the packet in the unit of cluster in the process of data transmission and...
Highly dynamic sensor networks, such as wireless multimedia sensor networks (WMSNs), have been applied in various kinds of application scenarios. WMSNs always work in the harsh environment, so the connectivity among the nodes changes rapidly. Traditional state-based protocols, designed for static networks, suffer excessive delay in updating their routing or neighborhood tables, leading to severe packet...
The evaluation on the transmission reliability is important for the design and optimization of wireless sensor networks (WSNs). In this paper, an approach, which is aimed at the high reliability oriented multi-path transmission in WSN, is proposed to compute and analyze both transmission reliability and average message delay. In this method, the multiple paths between the source and the sink are mapped...
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