| 基于串扰的无线传感器网络可用带宽估计算法 |
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| 引用本文： | 陈晨,高新波,裴庆祺. 基于串扰的无线传感器网络可用带宽估计算法[J]. 华南理工大学学报(自然科学版), 2010, 38(1). DOI: 10.3969/j.issn.1000-565X.2010.01.011 |
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| 作者姓名： | 陈晨 高新波 裴庆祺 |
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| 作者单位： | 1. 西安电子科技大学,综合业务网理论及关键技术国家重点实验室,陕西,西安,710071
2. 西安电子科技大学,电子工程学院,陕西,西安,710071 |
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| 基金项目： | 国家自然科学基金重点项目，国家自然科学基金，NSFC-广东联合基金重点项目，高等学校学科创新引智计划项目，国家高技术研究发展计划(863计划) |
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| 摘 要： | 可用带宽是无线传感器网络中路由选择、负载均衡、多sink布置、优先级传输等策略的重要参考.文中提出一种利用串扰来估计采用了S-MAC协议的无线传感器网络可用带宽的方法.传感器节点在使用串扰避免机制后,将收集到邻节点的RTS/CTS/DATA/ACK分组中的网络分配矢量以表的形式记录在自己的缓存中,经过计算得到节点的可用带宽.仿真结果表明,该方法能够较为准确地预测S-MAC中节点周围的负载情况和竞争程度.
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| 关 键 词： | 无线传感器网络 可用带宽 串扰 |
| 收稿时间： | 2009-04-07 |
| 修稿时间： | 2009-08-22 |
Overhearing-Based Estimation Algorithm of Available Bandwidth in Wireless Sensor Networks |
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| Chen Chen,Gao Xin-bo,Pei Qing-qi. Overhearing-Based Estimation Algorithm of Available Bandwidth in Wireless Sensor Networks[J]. Journal of South China University of Technology(Natural Science Edition), 2010, 38(1). DOI: 10.3969/j.issn.1000-565X.2010.01.011 |
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| Authors: | Chen Chen Gao Xin-bo Pei Qing-qi |
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| Abstract: | Available bandwidth plays an important role in routing selection, load balance, multi-sink deployment and priority transmission in wireless sensor networks. This paper focuses on the available bandwidth and proposes an overhearing-based estimation scheme of available bandwidth in S-MAC protocol-based wireless sensor networks. When the overhearing mechanism is enabled in S-MAC, the network allocation vectors stored in the RTS/CTS/DATA/ACK packets of neighbour nodes are recorded in the buffer in the form of a table, and the available bandwidth is thus calculated. Simulated results show that the proposed method can accurately estimate the network load and competition level regarding the investigated S-MAC nodes. |
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| Keywords: | wireless sensor network available bandwidth overhearing |
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