Title :
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
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;
Conference_Titel :
Communication Technology and Application (ICCTA 2011), IET International Conference on
Conference_Location :
Beijing
DOI :
10.1049/cp.2011.0718
