Performance of LDPC codes for satellite communication in ka band

Authors:
Da Xinyu;Wang Yanling;Xie Tiecheng
Affiliations:
Telecommunication Engineering Institute of Air Force, Engineering University, Xi'an, China;Telecommunication Engineering Institute of Air Force, Engineering University, Xi'an, China;Telecommunication Engineering Institute of Air Force, Engineering University, Xi'an, China
Venue:
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Year:
2009

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Abstract

This paper presents the application of Low-Density Parity-Check (LDPC) codes in Ka band. Considering the weather impairments and multi-path fading in Ka band, the channel model and system model have been found. We analyzed the Bit error rate (BER) performance of LDPC codes compared with convolutional code (CC) and uncode at 16QAM and BPSK modulation technique. The results show that LDPC codes give the best performance. In the case of 16QAM or BPSK, LDPC codes can provide 2.5dB or 2.6dB coding gain compared with CC at a BER of 10-3, and LDPC codes can provide 2.9dB coding gain compared with CC at a BER of 10-4. It is show that LDPC codes in Ka band are effective and feasible.