Paper Info
Title
Cell Selection and Resource Allocation for Interference Management in a Macro-Picocell Heterogeneous Network
Abstract
A heterogeneous network (HetNet) based on the long-term evolution advanced standard has been developed to improve the system performance; in this HetNet, macrocells and low-power nodes, such as picocells, coexist. Further, cell range expansion has been introduced to encourage data offloading in a HetNet. In this paper, we propose a cell selection scheme based on the signal-to-interference-plus-noise ratio to achieve an optimal offloading effect. We also propose a resource allocation scheme in the frequency and time domains, to reduce interference in a HetNet. In the frequency domain, the macrocells allocate a frequency band by using soft frequency reuse, and the picocells choose the sub-bands that are not used in the macrocell sector, to avoid interference. In addition, we found that it was difficult to allocate a limited frequency resource. Therefore, the cross-tier interference can be managed by using an almost blank subframe (ABS) with a flexible ABS ratio, to improve spectrum efficiency in the time domain. The simulation results show that the proposed schemes can improve the spectrum efficiency of both the macro-user equipment and the pico-user equipment, as well as improve the overall UE performance.
Year
DOI
Venue
2015
10.1007/s11277-015-2489-9
Wireless Personal Communications
Keywords
Field
DocType
ABS,Cell selection,CRE,HetNet,Interference,SFR,SINR
Frequency domain,Frequency band,Computer science,Picocell,Computer network,Resource allocation,Interference (wave propagation),Spectral efficiency,Heterogeneous network,Macrocell
Journal
Volume
Issue
ISSN
83
3
0929-6212
Citations 
PageRank 
References 
2
0.39
14
Authors
8
Name
Order
Citations
PageRank
Sangmi Moon11813.35
Bora Kim2116.43
Saransh Malik3116.77
Cheolwoo You415737.11
Huaping Liu58220.94
Jeong-Ho Kim664.90
Jihyung Kim77012.59
Intae Hwang84530.80