DocumentCode :
1133600
Title :
Range and throughput enhancement of wireless local area networks using smart sectorised antennas
Author :
Doufexi, Angela ; Armour, Simon ; Nix, Andrew ; Karlsson, Peter ; Bull, Dave
Author_Institution :
Centre for Commun. Res., Univ. of Bristol, UK
Volume :
3
Issue :
5
fYear :
2004
Firstpage :
1437
Lastpage :
1443
Abstract :
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.
Keywords :
Rician channels; access protocols; adaptive antenna arrays; broadband networks; wireless LAN; 5 GHz; HiperLAN2; IEEE 802.11a; Rician characteristics; WLAN; medium access control; multiple access protocol; range enhancement; smart sectorised antennas; throughput enhancement; wideband channels; wireless local area network; Access protocols; Antenna measurements; Media Access Protocol; Mobile antennas; OFDM; Physical layer; Throughput; Transmitting antennas; Wideband; Wireless LAN; 02.11; HIPERLAN2; IEEE; OFDM; WLANs; orthogonal frequency division multiplexing; smart antennas; wireless local area networks;
fLanguage :
English
Journal_Title :
Wireless Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
1536-1276
Type :
jour
DOI :
10.1109/TWC.2004.833461
Filename :
1343875
Link To Document :
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