Performance analysis of FFH / BPSK system with partial band noise jamming and channel estimation error in high-mobility wireless communication scenarios  

作　　者：Yishan He Yufan Cheng Gang Wu Shaoqian Li 

机构地区：[1]National Key Laboratory of Science and Technology on Communications,University of Electronic Science and Technology of China

出　　处：《Chinese Science Bulletin》2014年第35期5011-5018,共8页

基　　金：supported in part by GF Research Program of China(4010103020201-2);Program for New Century Excellent Talents in University(NCET-11-0058);the National Natural Science Foundation of China(61201126 and 61032002)

摘　　要：In this paper,we analyze the bit error ratio(BER) of fast frequency hopping(FFH) system with binary phase shift keying(BPSK) in high-mobility wireless channels.By taking into account partial band noise jamming and channel estimation errors as Gaussian noise,both of maximal-ratio combining(MRC) and equal-gain combining(EGC) schemes are considered,and exact analytical BER expressions for MRC and EGC schemes are obtained.Especially,a closed-form BER expression for the MRC scheme is also presented in high signal-to-noise ratio region.Analytical and simulation results demonstrate that,the FFH/BPSK schemes suffer from performance degradation in the presence of channel estimation errors.The worst case jamming factor is shown to be inversely proportional to the signal to jamming ratio.With properly designed frequency hopping schemes and channel estimation schemes,the performance improvement is also observed as compared with the traditional noncoherent FFH/BFSK system.In this paper, we analyze the bit error ratio （BER） of fast frequency hopping （FFH） system with binary phase shift keying （BPSK） in high-mobility wireless channels. By taking into account partial band noise jam- ming and channel estimation errors as Gaussian noise, both of maximal-ratio combining （MRC） and equal-gain com- bining （EGC） schemes are considered, and exact analytical BER expressions for MRC and EGC schemes are obtained. Especially, a closed-form BER expression for the MRC scheme is also presented in high signal-to-noise ratio region. Analytical and simulation results demonstrate that, the FFH/BPSK schemes suffer from performance degra- dation in the presence of channel estimation errors. The worst case jamming factor is shown to be inversely pro- portional to the signal to jamming ratio. With properly designed frequency hopping schemes and channel estima- tion schemes, the performance improvement is also observed as compared with the traditional noncoherent FFH/BFSK system.

关 键 词：信道估计误差 PSK系统 性能分析 噪声干扰 无线信道 通信方案 高流动性 频带 

分 类 号：TN92[电子电信—通信与信息系统]