Angle random forwarding (AnRaF) for wireless sensor networks: performances and realization
Angle random forwarding (AnRaF) for wireless sensor networks: performances and realization
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DOI：
10.1002/wcm.647
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
Fang Dong;Peiliang Qiu;Zhaoyang Zhang
中科院分区：
文献类型：
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作者：
Fang Dong;Peiliang Qiu;Zhaoyang Zhang
提出了一种新的分布式无线传感器网络随机转发协议。该协议的特点是利用节点的方位角，并通过邻居间的竞争机会选择中继节点。首先，精确的角度信息的协议进行了讨论，其多跳性能进行了评估，通过模拟和分析的平均跳数的汇聚节点。仿真结果表明，该算法在网络连通性方面表现良好。作为补充，节点移动性也被引入到评估多跳性能在真实的环境。然后，提出了一种简单的MAC方案，以确保具有最高角度优势的节点将被选为中继，随后基于它的能量和延迟性能进行评估。结果表明，我们的协议可以有效地提供数据与地理随机转发（GeRaF）所需的活动邻居的一半数量。最后，提出了一种实用的方法来估计方位角，结合它，我们的转发协议实现的性能非常接近的情况下，精确的角度信息。版权所有© 2008约翰威利父子有限公司。
A novel random forwarding protocol for distributed wireless sensor networks (WSNs) is reported in this paper. The proposed protocol features the utilization of azimuth angle of the nodes involved and opportunistic selection of the relaying node via contention among neighbors. First, the protocol with precise angle information is discussed and its multi-hop performance is evaluated by means of both simulation and analysis in terms of average number of hops to the sink node. Simulation results show that it performs well especially in network connectivity. As a complement, node mobility is also introduced to evaluate multi-hop performance in real environments. Then, a simple MAC scheme to ensure that the node with the highest angular advantage will be selected as a relay is proposed, and subsequently energy and latency performances based on it are evaluated. It is shown that our protocol can effectively deliver data with half number of active neighbors required in geographical random forwarding (GeRaF). Finally, a practical method is presented to estimate azimuth angle, combined with which, our forwarding protocol is shown to achieve the performance very close to the case with precise angle information. Copyright © 2008 John Wiley & Sons, Ltd.