Dynamic tuning of the IEEE 802.11 protocol to achieve a theoretical throughput limit
IEEE/ACM Transactions on Networking (TON)
Computer Networks: The International Journal of Computer and Telecommunications Networking - Wireless networking
Optimization of AP Placement and Channel Assignment in Wireless LANs
LCN '02 Proceedings of the 27th Annual IEEE Conference on Local Computer Networks
Goodput Analysis and Link Adaptation for IEEE 802.11a Wireless LANs
IEEE Transactions on Mobile Computing
IEEE 802.11 rate adaptation: a practical approach
MSWiM '04 Proceedings of the 7th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
Self-management in chaotic wireless deployments
Proceedings of the 11th annual international conference on Mobile computing and networking
A survey of quality of service in IEEE 802.11 networks
IEEE Wireless Communications
A dynamic radio resource management technique for multiple APs in WLANs
IEEE Transactions on Wireless Communications
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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 WLANs to support multimedia traffic. Two techniques are introduced for this purpose: service differentiation in the MAC layer, and link adaptation in the physical layer. First, we formulate the RCA as a min-max optimization problem regarding channel utilization with constraints of transmitting power and data rates. Second, we derive an expression to evaluate the channel utilization, which incorporates the condition of a wireless channel, such as signal-to-noise (SNR) ratio and transmitting power, in addition to the transmitting probability of a station. It also incorporates the differentiations among the stations within an AP on behalf the traffic flows carried by the links between a station and its AP. Third, we propose a new RCA algorithm that considers both link adaptation and service differentiation mechanisms, which have not been considered by the existing RCA schemes. Simulation results have demonstrated the effectiveness of the proposed strategy.