Title :
Diversity analysis for QAM in Nakagami fading channels
Author :
Yoon, Dongweon ; Lee, Younghwan ; Bae, Changho ; Cho, Kyongkuk ; Cho, Pyeongdong
Author_Institution :
Div. of Comput. & Comm., Daejeon Univ., South Korea
Abstract :
Closed-form expressions for the exact bit error rate performance of an arbitrary rectangular QAM with Gray code mapping for diversity reception in frequency non-selective slow m-distributed Nakagami fading is derived and analyzed. The maximal-ratio combining (MRC) diversity technique with independent or correlated fading has been considered. Also, the exact BER expression of rectangular QAM for MRC diversity in the presence of cochannel interference is presented. Numerical results demonstrate the error performance improvement by employing MRC diversity reception. The new expressions presented are applicable in many cases of practical interest.
Keywords :
Gray codes; cochannel interference; digital radio; diversity reception; error statistics; fading channels; mobile radio; modulation coding; quadrature amplitude modulation; statistical analysis; BER; Gray code mapping; MRC; Nakagami statistics; bit error rate; closed-form expressions; cochannel interference; correlated fading; digital mobile communication; diversity reception; frequency nonselective fading; independent fading; m-distributed Nakagami fading channels; maximal-ratio combining; rectangular QAM; slow fading; AWGN; Bit error rate; Diversity reception; Fading; Frequency diversity; Frequency shift keying; Land mobile radio; Mobile communication; Quadrature amplitude modulation; Rayleigh channels;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN :
0-7803-7589-0
DOI :
10.1109/PIMRC.2002.1045477
