1. 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

2. Outline  Introduction  Joint Statistics of The Hybrid SC/MRC Receiver Output  Average BER of Hybrid SC/MRC Binary Receivers  Numerical Examples & Discussions  Conclusions  References

3. 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.

4. Selective Combining

5. Maximal Ratio Combining

6. Joint Statistics of The Hybrid SC/MRC Receiver Output

7. Average BER of Hybrid SC/MRC Binary Receivers g =1 for coherent BPSK g = 0.5 for coherent orthogonal BFSK g =0.715 for coherent BFSK with minimum correlation Total SNR :

8. Average BER of SC/MRC-2/3 Binary Receivers

9. Average BER of SC/MRC-2/4 Binary Receivers

10. Numerical Examples & Discussions

14. 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.

15. 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