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arXiv 1209.2806cs.NI
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TRASA:无线传感器网络中感知流量的时隙分配算法

TRASA: TRaffic Aware Slot Assignment Algorithm in Wireless Sensor Networks

Ichrak Amdouni, Pascale Minet

摘要:

在无线传感器网络的典型应用模式--数据收集应用中,传感器节点可能有不同的流量需求。对每个节点的不均等信道访问可能导致拥塞、带宽的低效使用和应用性能的降低。本文证明了当p跳节点不被分配相同的时隙时,时隙分配问题是NP-完全的,其中对任意严格正整数h,1 <= p <= h.我们提出了TRASA,一个TRAffic意识时隙分配算法能够分配时隙的传感器成比例的需求。我们评估的性能TRASA为不同的物流,并证明它提供了一个优化的空间重用和最小化的周期长度。

英文摘要:

In data gathering applications which is a typical application paradigm in wireless sensor networks, sensor nodes may have different traffic demands. Assigning equal channel access to each node may lead to congestion, inefficient use of the bandwidth and decrease of the application performance. In this paper, we prove that the time slot assignment problem is NP-complete when p-hop nodes are not assigned the same slot, with 1 <= p <= h for any strictly positive integer h. We propose TRASA, a TRaffic Aware time Slot Assignment algorithm able to allocate slots to sensors proportionally to their demand. We evaluate the performance of TRASA for different heuristics and prove that it provides an optimized spatial reuse and a minimized cycle length.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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