Timing-Synchronization Analysis for IEEE 802.11a Wireless LANs in Frequency-Nonselective Rician Fading Environments

摘要

This paper derives and computes the probability of synchronization failure Pfail 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 Eds/N 0 ratios required to achieve Pfail = 10-3 and 10-4 are computed, where Eds is the data-symbol energy. We find that Eds/N0 ratios over 20 dB are generally required for channels with Rician factors K ≤ 6 dB. In particular, E ds/N0 ratios that yield Pfail = 10-4 exceed 30 dB for K ≤ 4 dB.