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首页> 外文期刊>IEEE sensors journal >Link Scheduling Method for Underwater Acoustic Sensor Networks Based on Correlation Matrix
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Link Scheduling Method for Underwater Acoustic Sensor Networks Based on Correlation Matrix

机译：基于相关矩阵的水下声传感器网络链路调度方法

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摘要

The unique characteristic of the underwater acoustic communication channel force development of new protocols for underwater acoustic sensor networks. Especially, the pretty slower propagation speed of acoustic signals in underwater should be taken into consideration. This paper constructs a link scheduling model on medium access control (MAC) layer for multihop underwater acoustic sensor networks. The proposed model employs correlation matrix to describe the conflicts relationship among links and uses propagation delay to generate conflict matrix for collision detection. In order to minimum the frame length, a power control strategy is introduced and aimed to reduce the effect of link interference. Then, a heuristic algorithm is presented to solve the conflict-free problem based on the model. Simulation results show that the link scheduling method and the power control strategy can effectively improve network performance with respect to throughput and end-to-end delay.
机译：水下声通信信道的独特特征迫使开发用于水下声传感器网络的新协议。特别是，应考虑到声音信号在水下传播速度相当慢的问题。本文构建了用于多跳水下声传感器网络的媒体访问控制（MAC）层上的链路调度模型。该模型利用相关矩阵描述链路之间的冲突关系，并利用传播时延生成冲突矩阵进行冲突检测。为了最小化帧长，引入了一种功率控制策略，旨在降低链路干扰的影响。然后，提出了一种基于模型的启发式算法来解决无冲突问题。仿真结果表明，链路调度方法和功率控制策略可以有效提高吞吐量和端到端延迟方面的网络性能。

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