A UEP LT Codes Design with Feedback for Underwater Communication

作者：Zhao, Danfeng; Wen, Jie^*; Si, Jiaxi

来源：Journal of Sensors, 2016, 2016: 2390734.

DOI：10.1155/2016/2390734

• Analysis and simulation
• Encoding schemes
• Performance requirements
• Symbol error rate (SER)
• Underwater acoustic sensor networks
• Underwater communication
• Underwater environments
• Unequal erasure protections

To satisfy the performance requirement of LT codes with Unequal Erasure Protection (UEP) in underwater environment, the Weighted Expanding Window Fountain (WEWF) code is proposed in this paper. The WEWF codes can achieve strong UEP property by nonuniformly selecting input symbols within each To overcome the disadvantages in terms of redundancy in the lower prioritized segments, Correlation Chain Feedback (CCFB) is also introduced to help the transmitter to precisely adjust the encoding scheme. Asymptotic analysis and simulation results demonstrate that the proposed approach can achieve lower symbol error rate and less overall redundancy in the underwater acoustic sensor networks.

• 出版日期2016
• 单位哈尔滨工程大学