摘要
在UW-CSMA/CA协议的基础上,针对水声网络的特点,在节点位置未知且不要求各节点时间同步的前提下,提出了对静默算法、退避算法和状态转移规则的改进算法,设计了一种适合于水声多跳网络的MACAPU协议。仿真结果表明:MACAPU协议在不同数据包长度、不同通信速率和不同节点距离下均具有较高的吞吐量,比原始UW-CSMA/CA协议具有更好的性能。
A UW-CSMA/CA-based protocol called MACAPU is proposed which can be adapted to multi-hop underwater networks without the need of node location and time synchronization .The im-provements include the quiet algorithm ,the backoff algorithm ,and the state transition rules .The simulation results show that the throughput performance of M ACAPU is higher than that of UWCSMA/CA as far as different data packet size ,different data rate ,and different distance between nodes are concerned .
出处
《海军工程大学学报》
CAS
北大核心
2014年第4期32-36,41,共6页
Journal of Naval University of Engineering
基金
国家自然科学基金资助项目(10904160)
国家863计划资助项目(2009AA093601)
关键词
水声网络
MAC协议
静默算法
退避算法
状态转移规则
underwater acoustic network
MAC protocol
quiet algorithm
backoff algorithm
state transition rules
