| 基于捕获效应的传感器网络MAC层研究 |
| |
| 引用本文： | 葛晓虎,朱耀庭.基于捕获效应的传感器网络MAC层研究[J].微电子学与计算机,2008,25(2):5-8,13. |
| |
| 作者姓名： | 葛晓虎 朱耀庭 |
| |
| 作者单位： | 华中科技大学,电子与信息工程系,湖北,武汉,430074 |
| |
| 基金项目： | 国家自然科学基金项目(60610106111) |
| |
| 摘 要： | 基于Markov链理论提出了一种新的理论模型用于描述无线传感器网络MAC层回退机制,该模型重点考虑了密集分布的无线传感器节点中普遍存在的捕获效应,并给出了新模型下节点发送概率的解析解。在此基础上,进而提出了一种新的无线传感器网络吞吐率计算模型,通过仿真分析,基于该模型计算所得到的网络吞吐率理论值要大于没有考虑捕获效应的网络吞吐率理论值。因此提出的新模型能够更准确地描述捕获效应对无线传感器网络的影响。
|
| 关 键 词： | 无线传感器网络 捕获效应 MAC层协议 回退机制 吞吐率 |
| 文章编号： | 1000-7180（2008）02-0005-04 |
| 收稿时间： | 2007-01-23 |
| 修稿时间： | 2007年1月23日 |
Research on MAC Layer of Sensor Network Based on Capture Effect |
| |
| GE Xiao-hu,ZHU Yao-ting.Research on MAC Layer of Sensor Network Based on Capture Effect[J].Microelectronics & Computer,2008,25(2):5-8,13. |
| |
| Authors: | GE Xiao-hu ZHU Yao-ting |
| |
| Abstract: | Based on the Markov chain a new model of back-off scheme used in the MAC protocol of wireless sensor networks has been proposed,and the impact of capture effect widely existing in the wireless sensor networks has been considered into new model.At the same time,a closed form solution has been derived for the transmission probability in the new model.Based on the new model of back-off scheme,another new throughput model used in the wireless sensor network has been proposed.According to the simulation results,the new models can describe the impact of capture effect on the wireless sensor networks. |
| |
| Keywords: | wireless sensor networks capture effect MAC layer protocols back-off scheme throughput |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
