摘要：

针对水声传感器网络中MACAW协议存在的延时问题,在传统USENIX握手协议的基础上,提出一种新的水声传感器网络媒体接入控制(MAC)协议。使用节点预调度方法对数据的传输时隙采取预约选择,在上上级节点与上级节点进行请求发送(RTS)/允许发送(CTS)握手与数据传输的同时,下级节点复用上级节点发送的CTS和数据信号作为发送给自己的RTS和确定发送信号,形成一种预调度流水线形式的MAC协议。仿真结果表明,该协议与传统的MACAW协议相比,能有效降低节点间的传输延时,提高水声传感器网络吞吐量,并且有效缓解碰撞,节约能源。

关键词: 水声传感器网络, 媒体接入控制协议, 握手协议, 传输率, 流水线

Abstract:

Aiming at the delay problem of MACAW protocol in underwater acoustic sensor networks,on the basis of the traditional handshake protocol,this paper proposes a new Media Access Control(MAC) protocol for underwater acoustic sensor networks.The protocol uses the node pre-scheduling method to make the reservation selection for the data transmission slot.While the upper and lower nodes Request To Send(RTS)/Clear To Send(CTS) handshake and data,the next node multiplexes CTS and data signal mode as the RTS and determined sent signal,which forms a pipelined MAC protocol.Simulation result shows that this protocol can effectively reduce the transmission delay between nodes,improve the underwater acoustic sensor network throughput,and effectively remit collision and save energy.

Key words: underwater acoustic sensor network, Media Access Control(MAC) protocol, handshake protocol, transmission rate, pipeline

中图分类号: 

• TN929.3