MICPA: A Client-Assisted Channel Assignment Scheme for Throughput Enhancement in WLANs

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Drieberg, Micheal, Zheng, Fu-Chun and Ahmad, Rizwan (2011) MICPA: A Client-Assisted Channel Assignment Scheme for Throughput Enhancement in WLANs. IEEE Transactions on Vehicular Technology, 60 (9). pp. 4497-4508. ISSN 0018-9545


The emergence of high-density wireless local area network (WLAN) deployments in recent years is a testament to the insatiable demands for wireless broadband services. The increased density of WLAN deployments brings with it the potential of increased capacity, extended coverage, and exciting new applications. However, the corresponding increase in contention and interference can significantly degrade throughputs, unless new challenges in channel assignment are effectively addressed. In this paper, a client-assisted channel assignment scheme that can provide enhanced throughput is proposed. A study on the impact of interference on throughput with multiple access points (APs) is first undertaken using a novel approach that determines the possibility of parallel transmissions. A metric with a good correlation to the throughput, i.e., the number of conflict pairs, is used in the client-assisted minimum conflict pairs (MICPA) scheme. In this scheme, measurements from clients are used to assist the AP in determining the channel with the minimum number of conflict pairs to maximize its expected throughput. Simulation results show that the client-assisted MICPA scheme can provide meaningful throughput improvements over other schemes that only utilize the AP's measurements.

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Item type Article
URI https://vuir.vu.edu.au/id/eprint/9248
DOI 10.1109/TVT.2011.2171199
Official URL http://ieeexplore.ieee.org/Xplore/defdeny.jsp?url=...
Subjects Historical > Faculty/School/Research Centre/Department > Centre for Telecommunications and Micro-Electronics (CTME)
Historical > FOR Classification > 1005 Communications Technologies
Historical > SEO Classification > 8901 Communication Networks and Services
Keywords ResPubID23897, distributed channel allocation, radio spectrum management, resource management, wireless local area network, broadband networks, channel allocation, client-server systems
Citations in Scopus 8 - View on Scopus
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