Timing-synchronization analysis for IEEE 802.11a wireless LANs in frequency-nonselective Rician fading environments

Author

Yip, Kun-wah ; Wu, Yik-Chung ; Ng, Tung-Sang

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, China

Volume

3

Issue

2

fYear

2004

fDate

3/1/2004 12:00:00 AM

Firstpage

387

Lastpage

394

Abstract

This paper derives and computes the probability of synchronization failure P_fail for IEEE 802.11a wireless LANs on frequency-flat Rician fading channels. For a frequency offset within ±232 kHz, it is shown that its effect on the synchronization performance is minor. The E_ds/N₀ ratios required to achieve P_fail=10^-3 and 10^-4 are computed, where E_ds is the data-symbol energy. We find that E_ds/N₀ ratios over 20 dB are generally required for channels with Rician factors K≤6 dB. In particular, E_ds/N₀ ratios that yield P_fail=10^-4 exceed 30 dB for K≤4 dB.

Keywords

OFDM modulation; Rician channels; probability; synchronisation; wireless LAN; IEEE 802.11a; frequency-flat Rician fading channels; frequency-nonselective channel; orthogonal frequency division multiplexing; sliding correlator; synchronization failure probability; timing synchronization analysis; wireless LANs; wireless local area networks; Bandwidth; Data communication; Delay; Fading; Frequency synchronization; Local area networks; OFDM; Rician channels; Timing; Wireless LAN;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2004.825372

Filename

1271232