Title
Interference Mitigation and Spectrum Sharing for Heterogeneous Networks Based on CQI Feedbacks.
Abstract
In this paper, we address a cross-tier interference mitigation scheme for heterogeneous networks based on cognitive radio technology, where the femtocell equipments, functioning as the secondary user, share the same frequency resource with the macrocell in the underlay mode. Different from other work, we assume that the femtocell access point (FAP) is able to listen to the quantized cellular channel quality information from the macrocell user equipments (MUEs) in its vicinity, and judiciously selects its own transmission power such that the average femtocell throughput is maximized with tolerable rate loss to the macrocell. We demonstrate the efficacy of the proposed scheme through extensive simulations under three typical scenarios: FAP has macrocell's scheduling information, FAP does not have this scheduling information but protects MUEs in a statistical fashion and, finally, FAP conservatively utilizes the channel by assuming the activated MUE always exists in its vicinity. © 2012 IEEE.
Year
DOI
Venue
2012
10.1109/VTCFall.2012.6398909
Vehicular Technology Conference
Keywords
Field
DocType
cognitive radio,scheduling,adaptive modulation
Link adaptation,Femtocell,Computer science,Computer network,Communication channel,Electronic engineering,Underlay,Heterogeneous network,Throughput,Macrocell,Cognitive radio
Conference
Volume
Issue
ISSN
null
null
1090-3038 E-ISBN : 978-1-4673-1879-2
ISBN
Citations 
PageRank 
978-1-4673-1879-2
0
0.34
References 
Authors
7
3
Name
Order
Citations
PageRank
James C. F. Li116710.94
Lei Jiang282.23
Ming Lei336931.97