基于交叉传输的水声通信网络MAC协议  

A MAC Protocol Based on Interleaving Transmission for Underwater Acoustic Network

作　　者：张曦[1] 闫涛[2] 王红卫[1] 钟永信 

机构地区：[1]空军工程大学航空航天工程学院 [2]空军第一航空学院 [3]94850部队

出　　处：《电信科学》2013年第4期106-111,117,共7页Telecommunications Science

摘　　要：为了解决传统TDMA协议在水下环境信道利用率低的问题,提出了交叉传输的TDMA(I-TDMA)协议。该协议利用水声信道长传输时延的特性,采用数据分组交叉传输的方法改善信道利用率,同时引入了拓扑扩展和循环同步机制,增强了网络系统的可扩展性。仿真结果表明,该协议与传统的TDMA协议相比减少了数据分组时延以及同步开销,具有更好的性能。In order to solve the problem of low channel utilization in the traditional TDMA protocol, an interleaving TDMA （I-TDMA） protocol was presented, which took advantage of the long propagation delay in underwater channels and improved channel utilization by interleaving data packets in empty time axis. Moreover, the topology extension and circle synchronization schemes was adopted to strengthen the expansibility of network systems. Simulation results indicate that 1-TDMA has lower delay and synchronic overhead than those of the traditional TDMA protocol, and can achieve better oerformance.

关 键 词：水声通信网络 MAC协议 TDMA 交叉传输 

分 类 号：TN915.04[电子电信—通信与信息系统]