Exact BER computation for cross QAM constellations
Exact BER computation for cross QAM constellations
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DOI:
10.1109/twc.2005.857997
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发表时间:
2005-11-01
影响因子:
10.4
通讯作者:
Kieffer, JC
中科院分区:
文献类型:
--
作者:
Vitthaladevuni, PK;Alouini, MS;Kieffer, JC
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. However, since perfect Gray coding is not possible for cross QAMs, using Smith-style Gray coding, this paper derives the exact bit error rate (BER) for cross QAM constellations over additive white Gaussian noise (AWGN) and Rayleigh fading channels.