performance of coherent receivers with hybrid sc/mrc over nakagami- m fading channels advisor:...
TRANSCRIPT
Performance of Coherent Receivers with Hybrid SC/MRC over
Nakagami-m Fading Channels
Advisor:王瑞騰Student:李昌穆
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL.48,NO.4,JULY 1999
Outline
Introduction Joint Statistics of The Hybrid SC/MRC
Receiver Output Average BER of Hybrid SC/MRC Binary
Receivers Numerical Examples & Discussions Conclusions References
Introduction
Performance analysis of two hybrid SC/MRC diversity receivers over Nakagami-m fading channels .
Numerically compared with that of the conventional SC and MRC schemes.
Selective Combining
Maximal Ratio Combining
Joint Statistics of The Hybrid SC/MRC Receiver Output
Average BER of Hybrid SC/MRC Binary Receivers
g =1 for coherent BPSKg = 0.5 for coherent orthogonal BFSKg =0.715 for coherent BFSK with minimum correlationTotal SNR :
Average BER of SC/MRC-2/3 Binary Receivers
Average BER of SC/MRC-2/4 Binary Receivers
Numerical Examples & Discussions
Numerical Examples & Discussions
Numerical Examples & Discussions
Numerical Examples & Discussions
Conclusions
The BER degradation arising from the use of hybrid SC/MRC instead of MRC is independent of the average SNR regardless of the severity of the fading.
MRC provides a higher rate of improvement than the hybrid SC/MRC as the severity of fading decreases.
References 李藯澤、許家華 / 譯 , WiMAX 技術原理與應用 , 碁峯 , 2007 Proakis , Digital Communications , McGraw-Hill ,
2001 David Tse 、 Pramod Viswanath , Fundamentals of
Wireless Communication , Cambridge , 2005