An approach for using adaptive error control schemes in wireless LAN with CSMA/CA MAC protocol

Author

Gidlund, Mikael

Author_Institution

Radio Commun. Syst. Group, R. Inst. of Technol., Stockholm, Sweden

Volume

1

fYear

2002

fDate

6/24/1905 12:00:00 AM

Firstpage

224

Abstract

Communication in high-speed wireless local area networks such as IEEE 802.11a are known to suffer from location-dependent, time-varying, and burst errors. It is usual to implement forward error correction and automatic repeat request mechanisms in the physical and data link layer to combat this errors. In this paper we evaluate the system performance of a WLAN with the CSMA/MAC protocol with different ARQ protocols. We have implemented three different schemes: (1) selective repeat ARQ; (2) ARQ with majority voting; and (3) type II hybrid ARQ. The simulation results show that all three schemes perform well when the channel is in good condition but when the bit error rate (BER) increases the type II hybrid ARQ is superior to the other two schemes.

Keywords

IEEE standards; adaptive control; automatic repeat request; carrier sense multiple access; error statistics; mobile radio; performance evaluation; time-varying channels; wireless LAN; ARQ protocols; ARQ with majority voting; BER; CSMA/MAC protocol; IEEE 802.11a; adaptive error control; bit error rate; high-speed WLAN; location-dependent burst errors; selective repeat ARQ; system performance; time-varying burst errors; type II hybrid ARQ; wireless local area networks; Adaptive control; Automatic repeat request; Bit error rate; Error correction; Forward error correction; Media Access Protocol; Multiaccess communication; Programmable control; Wireless LAN; Wireless application protocol;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th

Print_ISBN

0-7803-7484-3

Type

conf

DOI

10.1109/VTC.2002.1002697

Filename

1002697