Title :
The performance comparison of differential detection and coherent detection with imperfect channel estimation in cooperative communication
Author :
Zhang, Yajun ; Gao, Yuanyuan ; Su, Shibin ; Zang, Guozhen
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
In this paper, the performance comparison of differential detection and coherent detection with imperfect channel estimation in AF cooperative communication is examined. We consider the real environment with channel estimation error, and utilize the average bit-error-rate (BER) performance of the two detection schemes to derive the BERs´ crossover point between channel estimation error and signal- noise-ratio (SNR), which is important for choosing which detection scheme between differential and coherent can have the system performance better. Simulation results show the significance of analytic results.
Keywords :
amplify and forward communication; channel estimation; cooperative communication; error statistics; AF cooperative communication; BER; SNR; bit-error-rate performance; channel estimation error; coherent detection; cooperative communication; differential detection; imperfect channel estimation; signal- noise-ratio; Binary phase shift keying; Bit error rate; Channel estimation; Coherence; Fading; Relays; Signal to noise ratio; Coherent Detection; Cooperative Communication; Differential Detection; Imperfect Channel Estimation;
Conference_Titel :
Communication Technology (ICCT), 2011 IEEE 13th International Conference on
Conference_Location :
Jinan
Print_ISBN :
978-1-61284-306-3
DOI :
10.1109/ICCT.2011.6157822
