DocumentCode :
393073
Title :
A novel multiple access protocol for wireless Internet access network with smart antennas
Author :
Yang, Jun ; Li, Jiandong
Author_Institution :
Inf. Sci. Inst., Xidian Univ., Xi´´an, China
fYear :
2003
fDate :
27-29 March 2003
Firstpage :
343
Lastpage :
348
Abstract :
Employing smart antennas in the central access point (CAP) of wireless Internet access networks is studied. A polling-based adaptive beamforming multiple access protocol (PB-ABFMA) is proposed. In PB-ABFMA, CAP requests the corresponding mobile terminal (MT) to transmit a training sequence just before the data packet transmission, so the temporal reference beamforming (TRB) can be performed by the smart antennas. CAP schedules packet transmissions based on polling mechanism and dynamic TDMA. CAP and MT transmit alternately. A mini-slot is used to keep connectivity when an MT is idle, therefore, the access delay is reduced. A simple and effective access method is proposed to guarantee rapid access of new arrival MT to the channel. Based on the "request-reply" traffic, which is the main traffic in the Internet, the theoretical analysis of channel utilization is presented. The mean turn around delay and performance of the proposed access method are evaluated by simulation. Results show that the proposed PB-ABFMA protocols effectively support the application of smart antennas and provide high channel utilization and low turn around delay.
Keywords :
Internet; adaptive antenna arrays; array signal processing; channel allocation; data communication; delays; mobile computing; mobile radio; packet radio networks; performance evaluation; radio access networks; telecommunication traffic; time division multiple access; CAP; PB-ABFMA protocols; access delay reduction; central access point; channel utilization; data packet transmission; dynamic TDMA; mobile terminal; multiple access protocol; performance; polling-based adaptive beamforming multiple access protocol; request-reply traffic; smart antennas; temporal reference beamforming; training sequence; turn around delay; wireless Internet access network; Access protocols; Array signal processing; Delay; Dynamic scheduling; IP networks; Internet; Mobile antennas; Time division multiple access; Traffic control; Transmitting antennas;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advanced Information Networking and Applications, 2003. AINA 2003. 17th International Conference on
Print_ISBN :
0-7695-1906-7
Type :
conf
DOI :
10.1109/AINA.2003.1192901
Filename :
1192901
Link To Document :
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