Joint ABS power and resource allocations for eICIC in heterogeneous networks

Author

Yu Chen ; Xuming Fang ; Bo Huang

Author_Institution

Key Lab. of Inf. Coding & Transm., Southwest Jiaotong Univ., Chengdu, China

fYear

2013

fDate

Oct. 27 2013-Nov. 1 2013

Firstpage

92

Lastpage

95

Abstract

Heterogeneous networks (HetNets) are expected to be one of the major performance enhancement enablers of LTE-Advanced. In order to protect pico-UEs from the strong macro interference, the macro eNBs need to reduce the transmission power during protected subframes instead of suspending data transmission introduced in 3GPP Release 10, scheduling strictly users in the vicinity of the macro eNBs. In this paper, based on low power (LP) almost blank subframes (ABS), we study a joint optimization of power allocation of ABS (called dynamic LP-ABS) and resource allocation to maximize the total throughput. The proposed algorithm takes into account the power allocation of ABSs in the marco eNB, the ABS partition and the UE association in all cells. Simulation results show that dynamic LP-ABS can effectively increase system throughput compared to the fixed LP-ABS and zero-ABS.

Keywords

3G mobile communication; Long Term Evolution; data communication; resource allocation; scheduling; 3GPP Release 10; ABS power allocation; HetNets; LP-ABS; UE association; almost blank subframes; data transmission; dynamic LP-ABS; eICIC; heterogeneous networks; macrointerference; pico-UE; resource allocation; resource allocations; scheduling; transmission power; zero-ABS; Interference; Joints; Optimization; Partitioning algorithms; Resource management; Signal to noise ratio; Throughput; HetNet; LP-ABS; Power allocation; eICIC;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Design and Its Applications in Communications, The Sixth International Workshop on

Conference_Location

Tokyo

Print_ISBN

978-1-4799-6028-6

Type

conf

DOI

10.1109/IWSDA.2013.6849070

Filename

6849070