DocumentCode :
2510589
Title :
A New Radio Channel Allocation Strategy For WLAN APs With Power Control Capabilities
Author :
Yu, Ming ; Su, Wei ; Malvankar, Aniket ; Kwan, Bing K.
Author_Institution :
FAMU-FSU Coll. of Eng., Tallahassee
fYear :
2007
fDate :
26-30 Nov. 2007
Firstpage :
4893
Lastpage :
4898
Abstract :
For IEEE 802.11 wireless LANs (WLAN) with multiple access points (AP), it is critical to allocate the limited number of radio channels dynamically and efficiently. This paper proposes a new framework for radio channel allocation (RCA) strategy for WLAN APs with power control capabilities. First, we formulate the RCA as a min-max optimization problem regarding channel utilization with constraints of data rate, channel quality, and transmission power. Second, we derive an expression to evaluate the channel utilization, which incorporates the condition of wireless channel, such as signal-to-noise (SNR) ratio and transmission power, in addition to the transmitting probability of a station. Third, we propose a new RCA algorithm that considers both link adaptation and power control mechanisms, in addition to the impact of co-channel interference (CCI) and multiple data rates, which have not been considered by the existing RCA schemes. Simulation results have demonstrated the effectiveness of the proposed strategy.
Keywords :
channel allocation; cochannel interference; minimax techniques; telecommunication control; wireless LAN; wireless channels; IEEE 802.11 wireless LAN; RCA algorithm; co-channel interference; link adaptation; min-max optimization problem; multiple access point; power control capability; probability; radio channel allocation strategy; signal-to-noise ratio; Channel allocation; Educational institutions; Interchannel interference; Least squares approximation; Physical layer; Power control; Quality of service; Radiofrequency interference; Throughput; Wireless LAN;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-1042-2
Electronic_ISBN :
978-1-4244-1043-9
Type :
conf
DOI :
10.1109/GLOCOM.2007.928
Filename :
4411838
Link To Document :
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