Adaptive configuration of antenna down tilt for optimizing coverages in IMT-Advanced systems

Author

Jun Chen ; Hua Jiang ; Mugen Peng

Author_Institution

Wireless Signal Process. & Network Lab., Univ. of Posts & Telecommun., Beijing, China

fYear

2011

fDate

14-16 Oct. 2011

Firstpage

495

Lastpage

499

Abstract

In this paper a new closed loop coverage control algorithm is presented to adaptively adjust the step length in each optimization period. This algorithm guarantees the signal quality of the users, meanwhile limits the inter-cell interference within a reasonable range. The key parameter indicators (KPIs) this algorithm bases on are reference signal receive power (RSRP) and signal to interference plus noise ratio (SINR) fed back from mobile users. Simulation results show that the proposed algorithm can lead to approximately 35% improvement in the system throughput, and almost double the value of SINR for the users at cell edge.

Keywords

mobile antennas; mobile communication; radiofrequency interference; IMT-advanced system; SINR; adaptive configuration; antenna down tilt; closed loop coverage control algorithm; coverage optimization; inter-cell interference; international mobile telecommunication-advanced system; key parameter indicator; reference signal receive power; signal to interference plus noise ratio; Antenna down tilt; IMT-Advanced; RSRP; Self-optimization;

fLanguage

English

Publisher

iet

Conference_Titel

Communication Technology and Application (ICCTA 2011), IET International Conference on

Conference_Location

Beijing

Type

conf

DOI

10.1049/cp.2011.0718

Filename

6192915