Interference Mitigation in Femtocell using Optimized Power Control

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Author(s): Mutieb I. Al-Hmoudi (International Islamic University Malaysia, Malaysia)and Rashid Saeed (International Islamic University Malaysia, Malaysia)
Copyright: 2012
Pages: 11
Source title: Femtocell Communications and Technologies: Business Opportunities and Deployment Challenges
Source Author(s)/Editor(s): Rashid A. Saeed (UIA, Malaysia), Bharat S. Chaudhari (International Institute of Information Technology, India)and Rania A. Mokhtar (Sudan University of Science and Technology, Sudan)
DOI: 10.4018/978-1-4666-0092-8.ch005

Keywords: Information Science Reference / Media & Communications / Networking and Telecommunications / Wireless Systems

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Abstract

The femtocell network is a new technology that uses the advantage of an Internet backbone to enhance the cellular coverage in residential or small business areas. However, due to the expected random deployment of the Femtocell Access Point (FAP), there is a strong probability of interference among the femtocell nodes and between the femtocells and the macrocell nodes. In this chapter, an interference enhancement for OFDMA systems is developed and designed for two tiered macro-femtocell networks. An adaptive power control is calculated based on selecting the minimum interference channel with the optimized channel gain. In the simulation a number of the FAPs, the distance between the macrocell and the femtocell, and the path loss between the macrocell node and the FAPs are used as design parameters. By using optimized power control performance enhancement the interference degradation ratio can be observed.

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