IEEE 802.11n: Performance evaluation of modified Viterbi metrics for TxBF, SDM and spatial spreading transceivers

Author

Fabris Hoefel, Roger Pierre

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil

fYear

2013

fDate

17-19 April 2013

Firstpage

1

Lastpage

6

Abstract

In this paper, we complement the open literature by presenting a comparative performance evaluation between conventional and modified Viterbi metrics for soft-decision decoding of binary convolutional codes in the framework of IEEE 802.11n systems with transmit beamforming, space division multiplexing and spatial spreading transceiver architectures. Simulation results show that the inclusion of channel state information in the Viterbi metrics allows significant performance improvement in the packet error rate over spatially correlated frequency selective TGn channels.

Keywords

array signal processing; binary codes; convolutional codes; decoding; space division multiplexing; wireless LAN; IEEE 802.11n systems; SDM; TxBF; binary convolutional codes; channel state information; conventional Viterbi metric; modified Viterbi metric; packet error rate; soft-decision decoding; space division multiplexing; spatial spreading transceivers; spatially-correlated frequency selective TGn channels; transmit beamforming; Decoding; IEEE 802.11n Standard; MIMO; Measurement; Signal to noise ratio; Transceivers; Viterbi algorithm; 802.11n; Beamforming; MIMO; OFDM; Viterbi;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Telecommunications Symposium (WTS), 2013

Conference_Location

Phoenix, AZ

ISSN

1934-5070

Print_ISBN

978-1-4673-5011-2

Type

conf

DOI

10.1109/WTS.2013.6566255

Filename

6566255