A Multi-base Station Cooperative Algorithm for LDPC-OFDM System in the HF Channel

被引：0

作者：

Li, Xiao-bei ^{[1
]}

Zhang, Song ^{[2
]}

Zhao, Fei-hu ^{[1
]}

Zhang, Hai-wei ^{[3
]}

机构：

[1] Air Force Engn Univ, Sch Informat & Nav, Xian, Shaanxi, Peoples R China

[2] Air Force Engn Univ, Sch Aeronaut & Astronaut Engn, Xian, Shaanxi, Peoples R China

[3] State Key Lab Astronaut Dynam, Xian, Shaanxi, Peoples R China

来源：

2014 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATION AND SENSOR NETWORK (WCSN) | 2014年

关键词：

component; High Frequency (HF) channel; Orthogonal Frequency Division Multiplexing (OFDM); Low-Density Parity-Check codes; Cooperative communication; forwarding strategy;

D O I：

10.1109/WCSN.2014.11

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Based on LDPC-OFDM system, a multi-base station cooperative algorithm is designed for high frequency (HF) channel, and a LDPC cooperative decoding algorithm is proposed, which adopts information combining strategy based on the probability measure. The center station in the system model uses the multiple signals received from the relay stations to update its received initialization information. This strategy can combine the cooperative communication strategy with LDPC iterative decoding effectively in order to achieve both diversity gain and encoding gain. Simulation results show that the cooperative strategy with the multi-relay stations has better performance in the bit error rate than direct transmission strategy. The decoding performance of DF strategy with a relay station with respect to that of AF strategy has a gain of about 0.7dB at BER = 10(-3).

引用

页码：21 / 27

页数：7