DocumentCode :
2660884
Title :
Approximating the probability distribution of OFDM symbol errors
Author :
Clark, Alan ; Smith, Peter ; Taylor, Desmond
Author_Institution :
Dept. of Electr. & Comput. Eng., Canterbury Univ., Christchurch, New Zealand
Volume :
2
fYear :
2005
fDate :
13-16 June 2005
Firstpage :
1412
Abstract :
Given an N subcarrier orthogonal frequency division multiplexing (OFDM) system transmitting over a slow fading Rayleigh channel, the distribution of b, the number of received symbol errors, is Poisson binomial. Hence, (bN) terms are required to calculate each probability for b = 0, 1....,N. When N is large, as in most OFDM systems, the Poisson binomial distribution is often approximated by the Poisson distribution. We show that, for large N, the total variation distance between the approximation and the true distribution is tower and upper bounded by random variables with fully known probability density functions. The bounds on the total variation distance indicate that the distribution of OFDM symbol errors is well approximated by a Poisson distribution.
Keywords :
OFDM modulation; Poisson distribution; Rayleigh channels; binomial distribution; probability; OFDM symbol errors; Poisson binomial distribution; fading Rayleigh channel; orthogonal frequency division multiplexing; probability density functions; probability distribution; Computer errors; Error analysis; Error correction codes; Multipath channels; OFDM; Probability density function; Probability distribution; Random variables; Rayleigh channels; Upper bound;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Networks, Communications and Mobile Computing, 2005 International Conference on
Print_ISBN :
0-7803-9305-8
Type :
conf
DOI :
10.1109/WIRLES.2005.1549620
Filename :
1549620
Link To Document :
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