Performance analysis of co-channel deployment of femtocells with power control in 4G networks

Author

Chandhar, Prabhu ; Ghosh, Prosenjit ; Das, Suvra Sekhar

Author_Institution

Indian Inst. of Technol., Kharagpur, Kharagpur, India

fYear

2014

fDate

Feb. 28 2014-March 2 2014

Firstpage

1

Lastpage

6

Abstract

4G and beyond broadband wireless mobile networks are considering deployment of femtocells in order to improve system capacity several folds. However, interference is added to the system due to large number of uncontrolled user deployed femtocells. In this paper, downlink coexistence between macro-cells and co-channel femtocells in a single frequency OFDMA network is investigated with realistic Long Term Evolution (LTE) system parameters. The impact of femtocell density and load variation in femtocells on the performance of macrocell and femtocell UEs is presented. SINR and capacity analysis is used to evaluate the performance of the 3GPP LTE system. An auto-configuration method for femtocells by UE measurements based downlink power control is described. Results show that the interference measurement based power control significantly reduces the downlink interference in a co-channel macrocell-femtocell networks thereby providing method for realizing fem-tocell networks.

Keywords

4G mobile communication; OFDM modulation; cochannel interference; frequency division multiple access; power control; 3GPP LTE system; 4G networks; OFDMA network; auto-configuration method; broadband wireless mobile networks; co-channel deployment; cochannel femtocells; interference measurement; long term evolution; macrocells; power control; Downlink; Femtocells; Interference; Macrocell networks; Power control; Signal to noise ratio; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (NCC), 2014 Twentieth National Conference on

Conference_Location

Kanpur

Type

conf

DOI

10.1109/NCC.2014.6811377

Filename

6811377