@conference {14954,
	title = {On the Relay Placement Problem in a Multi-cell LTE-Advanced System with Co-channel Interference},
	booktitle = {Proc. of the 8th IEEE Int.Conf on Wireless and Mobile Computing, Networking and Communications (WiMob 2012)},
	year = {2012},
	month = {October},
	address = {Barcelona, Spain},
	abstract = {<p>One of the main problems in LTE-A networks is the small rates achieved by cell-edge users. This is due to the adoption of a frequency reuse factor of 1, which aims at increasing the overall capacity. This occurs, however, at the expense of increasing the interference level for cell-edge users. Cooperative communication through the use of relays is an efficient technique to solve this problem. However, careful placement of the relays is a crucial factor in determining the expected capacity gain. In this paper, the relay placement problem in an LTE-A network is studied, taking into consideration the effect of co-channel interference. An optimization framework is proposed to maximize either the total cell capacity or the total cell-edge capacity. Simulation results show a capacity gain factor of 8.027 for cell-edge users due to relay deployment, under 100\% cell load in center cell and adjacent cells.</p>
},
	author = {O. A. Elgendy and M. H. Ismail and K. Elsayed}
}
