Title :
Exact BER computation for the cross 32-QAM constellation
Author :
Vitthaladevuni, Pavan Kumar ; Alouini, Mohamed-Slim
Author_Institution :
Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
When the number of bits per symbol is odd, the peak and average power of transmission can be reduced by using cross quadrature amplitude modulations (QAMs) instead of rectangular QAMs. Since perfect Gray coding is not possible for cross QAMs, using Smith-style Gray coding, we derive in this paper the exact bit error rate (BER) for the cross 32-QAM constellation over additive white Gaussian noise (AWGN) and Rayleigh fading channels.
Keywords :
AWGN channels; Gray codes; Rayleigh channels; error statistics; quadrature amplitude modulation; Rayleigh fading channels; Smith-style Gray coding; additive white Gaussian noise; bit error rate; bit per symbol; cross 32-QAM constellation; cross quadrature amplitude modulations; exact BER computation; transmission average power; transmission peak power; AWGN; Additive white noise; Binary codes; Bit error rate; Fading; Intelligent transportation systems; Power engineering computing; Quadrature amplitude modulation; Reflective binary codes; Signal to noise ratio;
Conference_Titel :
Control, Communications and Signal Processing, 2004. First International Symposium on
Print_ISBN :
0-7803-8379-6
DOI :
10.1109/ISCCSP.2004.1296484
