Cognitive downlink Interference management in Long Term Evolutionfemtocel

Abstract

The Project present a vision for 4G cellular networks based on the concept. Long Term Evolution (LTE) has developed a new technology in order to enhance indoor coverage. This new technology is called femtocells (short distance) and is achieved with the use of access points installed by home users. However, interference problem between the femtocells and the macrocell to femtocell decreases the system's capacity.

The problem can be solved by process of cognitive interference management in user deployed 4G femtocell networks. Each femtocell cognitively recognizes an interference signature from the network environment and opportunistically locations. The proper channel patterns for interference minimization and base station pilot power is autonomously configured in order to maximize the cellular coverage.

Simulation results show great channel SINR improvement . cognitive interference recognition and data rate have improvement in femtocell .