一种基于接收节点控制的无线传感器网络媒体访问控制协议

发布时间：2018-03-01 18:39

本文关键词： 无线传感器网络多次邀请迸发传输信道利用率　出处：《传感技术学报》2014年02期 　论文类型：期刊论文

【摘要】：为了提高无线传感器网络数据包传输效率,提出一种基于时间同步、接收节点控制的无线传感器网络媒体访问控制协议。该协议在保持节点低功耗工作的前提下,使父节点在一个操作周期内,通过多次邀请机制和迸发传输机制,能够与多子节点进行数据包的多次传输。该多次邀请机制,使父节点具备了在单个操作周期内,从多个子节点接收数据包的能力,本质上减少了子节点之间的竞争、提高了信道利用率,增强了父节点对数据包传输的控制力。迸发传输机制,使得父节点可以在一次通讯中连续接收多个数据包,进一步提高了信道的利用率。仿真结果表明:当网络载荷强度增大时,该协议使网络中的节点能够充分利用信道,显著提高了网络中数据包的传输效率,随着网络载荷增加,使网络吞吐量增大近50%。
[Abstract]:In order to improve the packet transmission efficiency of wireless sensor networks, a media access control protocol for wireless sensor networks based on time synchronization and receiving node control is proposed. In one operation cycle, the parent node can transmit multiple data packets with multiple child nodes by means of multiple invitation mechanism and burst transmission mechanism. This multiple invitation mechanism enables the parent node to have a single operation cycle. The ability to receive data packets from multiple child nodes essentially reduces competition among child nodes, improves channel utilization, and enhances the parent node's control over data packet transmission. This enables the parent node to receive multiple packets continuously in a single communication, which further improves the channel utilization. The simulation results show that when the network load intensity increases, the protocol enables the nodes in the network to make full use of the channel. With the increase of network load, the network throughput increases by nearly 50%.
【作者单位】：东南大学国家ASIC系统工程技术研究中心;
【基金】：江苏省自然科学基金项目(BK2011018)
【分类号】：TP212.9;TN929.5

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