Netinfo Security ›› 2015, Vol. 15 ›› Issue (3): 64-68.doi: 10.3969/j.issn.1671-1122.2015.03.013

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HARQ Protocol for Underwater Acoustic Sensor Networks Based on Fountain Codes Correlation Chain Abstraction

DUAN Jin-jue, ZHAO Dan-feng(), LIANG Ming-shen   

  1. College of Information and Communication Engineering, Harbin Engineering University, Harbin Heilongjiang 150001, China
  • Received:2015-01-21 Online:2015-03-10 Published:2015-05-08

Abstract:

Underwater acoustic sensor networks (UASNs) are prone to packet loss due to their poor link condition with high noise and high bit error rate. Therefore, a fountain codes correlation chain abstraction based HARQ protocol (CCA-HARQ) is proposed for UASNs to guarantee the reliable message delivery. The CCA-HARQ protocol could feedback the decoding status of the receiver to the sender in a more detailed way by attaching the correlation chain abstraction information in the NACK message, with which the sender could make more intelligent decisions to conduct more effective retransmission coding packets and the transmission overhead as well as the end to end throughput performance are optimized as a result. On the basis, the proposed protocol is simulated on the platform of OPNET network simulators. Simulation results demonstrate that proposed CCA-HARQ plays better than traditional UW-HARQ protocol from the perspective of transmission overhead and the end to end throughput.

Key words: underwater acoustic sensor networks, digital fountain codes, correlation chain abstraction, HARQ protocol, OPNET network simulator

CLC Number: