ECS: Efficient Communication Scheduling for Underwater Sensor Networks
ECS: Efficient Communication Scheduling for Underwater Sensor Networks
复制标题
ECS：水下传感器网络的高效通信调度
DOI：
10.3390/s110302920
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发表时间：
2011-03-01
期刊：
影响因子：
3.9
通讯作者：
Li, Zhengbao
中科院分区：
文献类型：
--
作者：
Hong, Lu;Hong, Feng;Li, Zhengbao
水声传感器网络（UWSNs）具有传输能耗大、传播时延长、通信距离远等特点，因此TDMA协议受到了广泛关注。以前的TDMA协议都是基于离散时隙为节点分配传输时间。提出了一种有效的连续时间调度TDMA协议（ECS），包括基于连续时间和面向发送方的冲突分析模型、传输时刻分配算法和分布式拓扑维护算法。仿真结果表明，ECS平均提高了20%的网络吞吐量相比，现有的MAC协议。
TDMA protocols have attracted a lot of attention for underwater acoustic sensor networks (UWSNs), because of the unique characteristics of acoustic signal propagation such as great energy consumption in transmission, long propagation delay and long communication range. Previous TDMA protocols all allocated transmission time to nodes based on discrete time slots. This paper proposes an efficient continuous time scheduling TDMA protocol (ECS) for UWSNs, including the continuous time based and sender oriented conflict analysis model, the transmission moment allocation algorithm and the distributed topology maintenance algorithm. Simulation results confirm that ECS improves network throughput by 20% on average, compared to existing MAC protocols.