DocumentCode :
719855
Title :
Joint optimization on inter-cell interference management and user attachment in LTE-A HetNets
Author :
Ye Liu ; Chung Shue Chen ; Chi Wan Sung
Author_Institution :
Alcatel-Lucent Bell-Labs., Centre de Villarceaux, Nozay, France
fYear :
2015
fDate :
25-29 May 2015
Firstpage :
62
Lastpage :
69
Abstract :
To optimize the network utility in 3GPP Long Term Evolution-Advanced (LTE-A) heterogeneous networks (HetNets), it is necessary to jointly consider inter-cell interference mitigation and user attachment. Based on potential game formulation, we optimize almost blank subframe (ABS) and/or cell selection bias (CSB) settings for both macrocells and picocells in a distributed manner. We demonstrate the need of joint ABS and CSB optimization via simulation case studies. Extensive simulations confirm that joint ABS and CSB optimizations can lead to a 20% improvement in spectral efficiency and a 46% improvement in energy efficiency while increasing the fairness of the achieved rates of users.
Keywords :
3G mobile communication; Long Term Evolution; energy conservation; interference suppression; optimisation; picocellular radio; telecommunication power management; 3GPP Long Term Evolution-Advanced; LTE-A HetNets; almost blank subframe; cell selection bias; energy efficiency; heterogeneous networks; intercell interference management; intercell interference mitigation; joint optimization; macrocells; network utility; picocells; user attachment; Games; Interference; Joints; Macrocell networks; Optimization; Resource management; Throughput; LTE/LTE-A; almost blank subframe; cell selection bias; distributed optimization; enhanced inter-cell interference coordination; heterogeneous networks; potential game;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), 2015 13th International Symposium on
Conference_Location :
Mumbai
Type :
conf
DOI :
10.1109/WIOPT.2015.7151054
Filename :
7151054
Link To Document :
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