Open AccessInterference Management with Block Diagonalization for Macro/Femto Coexisting Networks
Author(s) -
Jang Uk,
Cho Keeseong,
Ryu Won,
Lee HoJin
Publication year - 2012
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.12.0110.0793
Subject(s) - femto , interference (communication) , macro , block (permutation group theory) , computer science , femtocell , telecommunications , computer network , mathematics , base station , combinatorics , channel (broadcasting) , programming language
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.