占港,丁洪伟,保利勇,官铮,何敏

• 1:云南大学信息学院

摘要(Abstract)：

为了提高无线传感器网络节点的能量利用率,提出一种新型CSMA随机多址协议。首先运用平均周期法求出吞吐率、传输速率、时延和能耗的数学表达式。其次加入多通道和优先级机制,使系统能够根据节点的负载分配适当的服务等级与信道资源。然后引入双时钟机制,减少系统的平均空闲周期时间,从而提高吞吐率。最后引入自适应机制,使系统的吞吐率和能耗能够维持稳定。仿真实验表明,仿真值与理论值一致,并且随着信息分组到达率的不断增加,新协议的吞吐量与能量有效性优异,证明了该协议能够有效地提高传输效率,减少能耗,可运用到无线通信领域。

关键词(KeyWords)： 无线传感器网络;CSMA;平均周期法;吞吐率;能量有效性;自适应机制

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目:融合式多址通信网络理论与控制协议研究(61461053);国家自然科学基金:无线网络中轮询控制系统分析与改进的研究(61461054)~~

作者(Author): 占港,丁洪伟,保利勇,官铮,何敏

DOI: 10.16652/j.issn.1004-373x.2018.24.006

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