Wireless Communications and Applications. First International Conference, ICWCA 2011, Sanya, China, August 1-3, 2011, Revised Selected Papers

Research Article

Performance of LDPC Coded SFH System with Partial-Band Interference

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  • @INPROCEEDINGS{10.1007/978-3-642-29157-9_14,
        author={Gong Chao and Zhang YingXian and Zhang BangNing and Guo DaoXing},
        title={Performance of LDPC Coded SFH System with Partial-Band Interference},
        proceedings={Wireless Communications and Applications. First International Conference, ICWCA 2011, Sanya, China, August 1-3, 2011, Revised Selected Papers},
        proceedings_a={ICWCA},
        year={2012},
        month={5},
        keywords={LDPC SFH soft-decision partial-band interference},
        doi={10.1007/978-3-642-29157-9_14}
    }
    
  • Gong Chao
    Zhang YingXian
    Zhang BangNing
    Guo DaoXing
    Year: 2012
    Performance of LDPC Coded SFH System with Partial-Band Interference
    ICWCA
    Springer
    DOI: 10.1007/978-3-642-29157-9_14
Gong Chao1,*, Zhang YingXian1, Zhang BangNing1, Guo DaoXing1
  • 1: Institute of Communications Engineering of PLAUST
*Contact email: gongchao.089@163.com

Abstract

The application of Low Density Parity Check (LDPC) code in the anti-interference systems has drawn an increasing attention, due to its admiring performance which is very close to the theory limit. This paper focuses on a LDPC encoded slow frequency hopping (SFH) communication system with partial-band interference. Firstly, a modified soft-decision algorithm based on the utilization of interference information is proposed, and its performance is compared with some other soft-decision methods. Secondly, with numerical simulation, the influence of code rate, code length and the number of symbols per hops on the performance of the system with partial band noise interference is illustrated and examined in detail. Considering the great influence of hops per symbol on the performance, interleaver should be used and its influence on the performance is further examined by simulation. Finally, some constructive advices for the design of LDPC coded SFH system are given. Simulation results show that, with a reasonable design, the SFH system with LDPC code could achieve a desirable performance.