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http://dx.doi.org/10.4218/etrij.12.0110.0793

Interference Management with Block Diagonalization for Macro/Femto Coexisting Networks  

Jang, Uk (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI)
Cho, Kee-Seong (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI)
Ryu, Won (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI)
Lee, Ho-Jin (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI)
Publication Information
ETRI Journal / v.34, no.3, 2012 , pp. 297-307 More about this Journal
Abstract
A femtocell is a small cellular base station, typically designed for use in a home or small business. The random deployment of a femtocell has a critical effect on the performance of a macrocell network due to co-channel interference. Utilizing the advantage of a multiple-input multiple-output system, each femto base station (FBS) is able to form a cluster and generates a precoding matrix, which is a modified version of conventional single-cell block diagonalization, in a cooperative manner. Since interference from clustered-FBSs located at the nearby macro user equipment (MUE) is the dominant interference contributor to the coexisting networks, each cluster generates a precoding matrix considering the effects of interference on nearby MUEs. Through simulation, we verify that the proposed algorithm shows better performance respective to both MUE and femto user equipment, in terms of capacity.
Keywords
Femtocells; interference mitigation; CoMP; coexisting networks;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)  (Related Records In Web of Science)
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