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Range and throughput enhancement of wireless local area networks using smart sectorised antennas

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5 Author(s)
Doufexi, A. ; Centre for Commun. Res., Univ. of Bristol, UK ; Armour, S. ; Nix, A. ; Karlsson, P.
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At present, wireless local area networks (WLANs) such as HiperLAN2 and 802.11a are being developed and deployed around the world. In this letter, the use of sectorized antennas is considered as a means to improve the physical layer performance of WLANs. Results demonstrate that throughput and range can be enhanced and/or the transmit power can be reduced. However, these benefits are achieved with a small increase in multiple access protocol overhead. Simulations are performed using measured wideband channels in the 5-GHz band. In cases where the channel exhibits strong Rician characteristics, gains as high as 13 dB are demonstrated. These benefits substantially outweigh the associated medium access control overhead.

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Wireless Communications, IEEE Transactions on  (Volume:3 ,  Issue: 5 )