TY - GEN
T1 - Joint optimization on inter-cell interference management and user attachment in LTE-A HetNets
AU - Liu, Ye
AU - Chen, Chung Shue
AU - Sung, Chi Wan
N1 - Publisher Copyright:
© 2015 IFIP.
PY - 2015/7/6
Y1 - 2015/7/6
N2 - 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.
AB - 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.
KW - Almost blank subframe
KW - Cell selection bias
KW - Distributed optimization
KW - Enhanced inter-cell interference coordination
KW - Heterogeneous networks
KW - LTE/LTE-A
KW - Potential game
UR - http://www.scopus.com/inward/record.url?scp=84941120991&partnerID=8YFLogxK
U2 - 10.1109/WIOPT.2015.7151054
DO - 10.1109/WIOPT.2015.7151054
M3 - Conference Proceeding
AN - SCOPUS:84941120991
T3 - 2015 13th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2015
SP - 62
EP - 69
BT - 2015 13th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 13th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2015
Y2 - 25 May 2015 through 29 May 2015
ER -