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Technical Challenges in 4G Cognitive Femtocell Systems
Abstract
This chapter studies the application of femtocells as part of the future cognitive 4G networks. It starts with a demonstration for the evolution of cellular and wireless networks. The developing technology that leads towards a converged LTE-Femtocell wireless environment is described in detail. The chapter presents the key challenges of deploying cognitive femtocell in the macrocell networks. As spectrum utilisation management is the main concern in the future network, the main models for spectrum allocation used to provide enough bandwidth to the femtocell in coexistence with the LTE systems are incorporated for further investigation. In addition, the Quality of Service (QoS) provisioning and the main approaches for measuring end user performance are given as function small range transmission domains. The requirement of an effective mobility management solution in such systems is analysed for future development. The chapter is concluded with a summary.
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