Mobility

Cross-Layer Radio Resource Management in Integrated WWAN and WLAN Networks

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Executive Summary

This paper proposes a mobility adaptive network selection scheme in the context of Wireless Wide Area Network (WWAN) and Wireless Local Area Network (WLAN) Radio Access Technologies (RATs) that supports both Real-Time (RT) and Non-Real-Time (NRT) service classes. Physical layer information based Call Admission Control (CAC) is considered for the two RATs to enforce service specific QoS requirements. The effectiveness of the cross-protocol-layer information for Radio Resource Management (RRM) in integrated WWAN and WLAN networks is assessed analytically for individual service classes in a multi-service environment using the theory of Markov chains.

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