Title :
Performance analysis of various 16 level modulation schemes under Rayleigh fading
Author :
Adachi, Fumiyuki ; Sawahashi, Mamoru
Author_Institution :
NTT Mobile Communications Network Inc., Kanagawa, Japan
Abstract :
The average bit error rate (BER) performances of 16 square/star QAM and 16 CPSK/DPSK under Rayleigh fading are theoretically analysed and compared. 16 star QAM is inferior to 16 square QAM, which achieves the best performance, by approximately 4 dB in the required average Eb/N0; however, when compared with differentially encoded square QAM, the performance inferiority is less than 2 dB.
Keywords :
amplitude modulation; fading; mobile radio systems; phase shift keying; 16 CPSK/DPSK; 16 level modulation schemes; 16 square QAM; 16 square/star QAM; 16 star QAM; Rayleigh fading; bit error rate; differentially encoded square QAM; mobile radio systems; performance analysis;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921005
