Performance Analysis of MIA Algorithm for LDPC codes in near space rain attenuation Channel
According to the influence of grand reflector to the channel, near space Ka-band rain attenuation channel model of area coverage is improved. According to RRWBF algorithm and UMP BP-Based algorithm of LDPC codes, a mixed iterative decoding algorithm is proposed. The algorithm takes advantage of low complexity of hard-decision algorithm and high performance of soft-decision algorithm, so in near space rain attenuation channel, the decoding complexity significantly reduced when bit error rate performance does not decline. Simulation results show that in near space rain attenuation channel, MIA algorithm can reduce decoding complexity by about 30％, compare with the UMP BP-Based algorithm.
LDPC codes RRWBF algorithm UMP BP-Based algorithm near space rain attenuation channel
Yi-Dong Su Shu-Xin Chen Hao Wu
Telecommunication Engineering Institute of Air Force Engineering University, Xian Shaanxi 710077 China
国际会议
大连
英文
1576-1582
2011-10-19（万方平台首次上网日期，不代表论文的发表时间）