Title :
Closed-form approximation of Coded BER in QAM-based BICM Faded Transmission
Author :
Szczecinski, Leszek ; Alvarado, Alex ; Feick, Rodolfo
Author_Institution :
INRS-EMT, Montreal, QC
Abstract :
In this paper we develop closed-form approximations for the coded BER in bit-interleaved coded modulation (BICM) transmission over Rayleigh fading channels. To obtain the desired expressions we apply the so-called saddle point approximation and use analytical forms of the probability density functions (PDF) of the reliability metrics. Numerical examples illustrate the accuracy of the proposed method.
Keywords :
Rayleigh channels; approximation theory; error statistics; interleaved codes; modulation coding; Rayleigh fading channels; bit-interleaved coded modulation; closed-form approximation; coded BER; faded transmission; probability density functions; reliability metrics; AWGN; Baseband; Bit error rate; Decoding; Fading; Interleaved codes; Laplace equations; Modulation coding; Probability density function; Quadrature amplitude modulation; BER; BICM; Bit Error Rate; L-values; Logarithmic Likelihood Ratios; PDF; QAM; Rayleigh Fading;
Conference_Titel :
Sarnoff Symposium, 2008 IEEE
Conference_Location :
Princeton, NJ
Print_ISBN :
978-1-4244-1843-5
DOI :
10.1109/SARNOF.2008.4520049
