A generic framework for mobility prediction and resource utilization in wireless networks

Abstract

User mobility influences the performance seen by a mobile device in a wireless network. Knowledge of mobility patterns can be exploited to properly allocate network resources and enhance the performance and quality of service experienced by a mobile device for applications and services. Hence, mobility prediction plays an important role in the efficient operation of wireless networks such as WANs and WLANs. Access to mobility related information such as user movement provides an opportunity for networks to efficiently manage resources to satisfy user needs. Towards this goal, a generic methodology based on a control theoretic framework is proposed. The effectiveness of the approach using a prediction engine based on Hidden Markov Model (HMM) is illustrated. Incorporation of this engine in a control theoretic framework with feedback from an adaptive controller permits the efficient allocation of network resources to applications. The above framework is quite general and the HMM based engine can be replaced by other suitable models such as neural networks or ARMA. Simulation results for the HMM based model illustrate the effectiveness of the approach.