Feasible criteria of link adaptation for wireless LANs using soft output Viterbi decoder

Author

Horisaki, Koji ; Namekata, Minoru ; Saito, Toshitada ; Unekawa, Yasuo ; Aikawa, Takeshi

Author_Institution

Mobile & Commun. SoC Dept., Toshiba Corp., Kawasaki, Japan

Volume

3

fYear

2004

fDate

17-19 May 2004

Firstpage

1792

Abstract

This work presents a simple data rate choosing method for multi data rate communication systems. This method is based on Viterbi decoding and aims to utilize relative likelihood between selected and unselected paths in the decoding. We confirmed the validity of our proposed method with computer simulations. The physical layer specifications follow the IEEE standard 802.11a, and then an AWGN channel and an ETSI-profile multipath channel are assumed in the simulations. The simulation results show that the proposed method can provide an effective link adaptation for communication systems that equip a Viterbi decoder and support plural data rate.

Keywords

AWGN channels; IEEE standards; Viterbi decoding; adaptive modulation; data communication; multipath channels; wireless LAN; AWGN channel; ETSI-profile multipath channel; IEEE standard 802.11a; Viterbi decoding; adaptive modulation; data rate choosing; link adaptation; multi data rate communication systems; physical layer specifications; selected paths; soft output Viterbi decoder; unselected paths; wireless LAN; Computational modeling; Computer simulation; Decoding; Error analysis; Local area networks; Physical layer; Robustness; Viterbi algorithm; Wireless LAN; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th

ISSN

1550-2252

Print_ISBN

0-7803-8255-2

Type

conf

DOI

10.1109/VETECS.2004.1390565

Filename

1390565