A Network Coding Based Hybrid ARQ Protocol for Underwater Acoustic Sensor Networks

作者：Wang, Hao; Wang, Shilian^*; Zhang, Eryang; Zou, Jianbin

来源：Sensors, 2016, 16(9): 1444.

DOI：10.3390/s16091444

• ARQ
• fountain codes
• network coding
• underwater acoustic sensor network

Underwater Acoustic Sensor Networks (UASNs) have attracted increasing interest in recent years due to their extensive commercial and military applications. However, the harsh underwater channel causes many challenges for the design of reliable underwater data transport protocol. In this paper, we propose an energy efficient data transport protocol based on network coding and hybrid automatic repeat request (NCHARQ) to ensure reliability, efficiency and availability in UASNs. Moreover, an adaptive window length estimation algorithm is designed to optimize the throughput and energy consumption tradeoff. The algorithm can adaptively change the code rate and can be insensitive to the environment change. Extensive simulations and analysis show that NCHARQ significantly reduces energy consumption with short end-to-end delay.

• 出版日期2016-9
• 单位中国人民解放军国防科学技术大学