Title :
An upper bound on the packet error rate of 802.11a/g Viterbi soft decision decoding in the AWGN channel
Author :
Xiaomin Chen ; Subramanian, Venkatachalam ; Leith, D. J.
Author_Institution :
Hamilton Inst., NUI Maynooth, Maynooth, Ireland
Abstract :
In this paper we consider the performance of soft decision decoding in the 802.11a/g OFDM physical layer over an AWGN channel. For BPSK and QPSK modulation we derive the probability that an incorrect path with degree d is selected in the Viterbi soft decision decoding algorithm, while for 16-QAM and 64-QAM modulation we derive upper and lower bounds. A bound on the first event error probability can be calculated based on this error probability, and so an upper bound on the packet error rate (PER) obtained.
Keywords :
AWGN channels; OFDM modulation; Viterbi decoding; error statistics; quadrature amplitude modulation; quadrature phase shift keying; wireless LAN; 16-QAM modulation; 64-QAM modulation; 802.11a Viterbi soft decision decoding; 802.11g Viterbi soft decision decoding; AWGN channel; BPSK modulation; OFDM physical layer; PER; QPSK modulation; first event error probability; packet error rate; Binary phase shift keying; Convolutional codes; Decoding; Error probability; OFDM; Upper bound; Viterbi algorithm;
Conference_Titel :
Wireless Days (WD), 2012 IFIP
Conference_Location :
Dublin
Print_ISBN :
978-1-4673-4402-9
Electronic_ISBN :
2156-9711
DOI :
10.1109/WD.2012.6402877
