摘要
水下传感器网络具有高时延、高误码率以及低带宽等特性。为了有效减少冲突,提高传输可靠性,设计合适的MAC协议尤为重要。基于RLT编码无握手的可靠传输MAC协议应用于湖试和仿真时,分析节点位置发生变化而邻居表中节点层级不改变的问题,并优化改进了ACK帧格式。利用NS3平台进行仿真实验和分析,仿真实验结果表明,优化后的RCHF协议能有效减少冲突,提高了传输可靠性,节约了能耗。
Underwater sensor networks have the characteristics of high delay, high bit-error-rate and low bandwidth. In order to effectively reduce the conflicts and improve the transmission reliability, it is particularly important to design appropriate MAC protocols.Based on the application of RLT coded handshake-free reliable transmission MAC protocol to the lake test and simulation, the change of node position and the non-change of node hierarchy in the neighbor table are analyzed, and the ACK frame format also optimized and improved. Simulation experiment and analysis with NS-3 platformindicates that the optimized RCHF protocol could effectively reduce conflicts, improve transmission reliability and save energy consumption.
作者
韩多亮
杜秀娟
朱建连
HAN Duo-liang;DU Xiu-juan;ZHU Jian-lian(Qinghai Provincial Key Laboratory of IoT, Qinghai Normal University, Xining Qinghai 810008, China)
出处
《通信技术》
2019年第4期885-889,共5页
Communications Technology
基金
青海省物联网重点实验室建设专项(No.2017-ZJ-Y21)
青海省重点研发与成果转化项目(No.2018-SF-143)
CERNET下一代互联网创新项目(No.NGII20160307
No.NGII20170509)~~
