| Publisher | University of Bristol | ||
|---|---|---|---|
| Format | 865.0KB PDF | Date added | 25 Jul 2004 |
| Topics | Wi-Fi (802.11), Mobile - Wireless Communications, Wireless LAN | ||
| Downloads | 353 | ||
HIPERLAN/2 and 802.11a/g WLANs employ Coded Orthogonal Frequency Division Multiplexing (COFDM) to provide data rates of up to 54 Mbps in a 20MHz bandwidth. In this paper, Space-Time Block Coding (STBC) techniques are considered as a means of enhancing the performance of COFDM WLANs. Packet Error Rate (PER) and throughput performance results are presented under different channel conditions. A WLAN physical layer simulator employing STBC and a propagation modelling tool are combined in order to evaluate the coverage and throughput of hot spot WLANs employing STBC for the 2x2 and 4x4 MIMO cases.
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