@article {3440,
	title = {A Simulation Framework for Evaluating Interference Mitigation Techniques in Heterogeneous Cellurar Environments},
	journal = {Wireless Personal Communications, Springer Verlang},
	volume = {77},
	year = {2014},
	pages = {1213-1237},
	abstract = {<p class="rtejustify">Femtocells present an attractive solution for the improvement of a mobile network?s\&nbsp;services providing better data rates and coverage. Since their deployment results to a\&nbsp;heterogeneous network where two layers must utilize the available spectrum, issues of interference\&nbsp;arise. A method to address this challenge, is investigating the locations of the newly\&nbsp;installed FBS, and enforcing a power controlled transmission of all FBSs that achieves optimal\&nbsp;and fair overall performance. Another option that becomes available in inter-cell interference\&nbsp;cancellation (ICIC) macrocell environments, is utilizing the available spectrum to complete\&nbsp;or partly avoid co-channel operation. In this work, we provide a simulation framework that\&nbsp;allows the creation of custom, high configurable, user defined topologies of femtocells with\&nbsp;power control and frequency allocation capabilities. It allows the investigation of the margin\&nbsp;of improvement in interference when these methods are applied and may work as a decision\&nbsp;tool for planning and evaluating heterogeneous networks. To showcase the framework?s\&nbsp;capabilities, we evaluate and study the behaviour of custom deployed femtocells/macrocells\&nbsp;networks and examine the cross-tier interference issues. Facilitated by the framework, we\&nbsp;enforce and evaluate each interference mitigation technique for different femtocells? deployment<br />
densities. Finally, we compare the results of each method in terms of total throughput,\&nbsp;spectral efficiency and cell-edge users? performance.</p>
},
	author = {Christos Bouras and Georgios Diles and Vasileios Kokkinos and Konstantinos Kontodimas and Andreas Papazois}
}
