Title :
A fast channel allocation scheme using simulated annealing in scalable WLANs
Author :
Chen, Jiayuan ; Olafsson, Sverrir ; Gu, Xuanye ; Yang, Yang
Author_Institution :
Dept. of Electron. & Electr. Eng., UCL, London
Abstract :
The primary difficulty with frequency reuse in scalable WLANs is interference mitigation. When deploying 802.11 devices in a close proximity, appropriate channel selection for each AP becomes one of the most challenging issues provided by limited usable frequencies. In this paper we introduce a distributed version of simulated annealing to solve the dynamic channel allocation problem in high-density WLANs. The approach is generic and applicable to any access system where channels are not allocated in a prefixed or centralized manner. The simulation results show that the proposed algorithm scales well and approximates the optimal solutions under a wide range of different network topologies.
Keywords :
channel allocation; radiofrequency interference; simulated annealing; telecommunication network topology; wireless LAN; WLAN; access system; channel allocation scheme; channel selection; high-density WLAN; interference mitigation; network topologies; simulated annealing; Channel allocation; Distributed algorithms; Frequency; Interchannel interference; Network topology; Radio spectrum management; Scalability; Simulated annealing; Throughput; Wireless LAN; Distributed channel allocation; Simulated annealing;
Conference_Titel :
Broadband Communications, Networks and Systems, 2008. BROADNETS 2008. 5th International Conference on
Conference_Location :
London
Print_ISBN :
978-1-4244-2391-0
Electronic_ISBN :
978-1-4244-2392-7
DOI :
10.1109/BROADNETS.2008.4769071
