一种有效带宽均衡的路由协议

A Bandwidth Balanced Routing Protocol in Underwater Networks

针对水下传感器网络中水声信道传输条件严重受限的特点,定量分析了路径衰减和噪声影响对信号带宽的影响.根据传输距离与带宽之间的对应关系,提出了一种有效带宽均衡的路由协议.在进行路由选择时,总是按照可用带宽最大建立默认路由,从而充分利用有限的带宽资源,在源头上减少拥塞的可能性.仿真结果表明,该协议能够实现各支路的带宽均衡,同时实现能量均衡,有效延长网络生存周期.

For underwater acoustic communication,the bandwidth is rigid restricted by transmission regions.In this paper,we research the relationship between the available bandwidth and the transmission distance,and propose a bandwidth balanced routing protocol,for underwater acoustic sensor networks（UASNs）.When transmitting packets,it always selects the branch（from the next-hop node to the sink）whose available bandwidth is maximal,thus also reduce the congestion and keep balance of sensor nodes＇ energy consumption in some degree.The simulation result shows that the proposed protocol could implement the bandwidth balance of all branches in whole network,and the energy consumption balance,then prolongs the lifetime.