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Detail
Journal Article
Interference Management with Block Diagonalization for Macro/Femto Coexisting Networks
- Authors
- Uk Jang, Keeseong Cho, Won Ryu, Ho-Jin Lee
- Issue Date
- 2012-06
- Citation
- ETRI Journal, v.34, no.3, pp.297-307
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- 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. © 2012 ETRI.
- KSP Keywords
- Cellular base station, Dominant interference, Femto base station(FBS), Interference Management, Macro user, Multiple input multiple output(MIMO), Multiple-Input Multiple-Output System, Single cell, Small business, block diagonalization(BD), co-channel interference(CCI)