Designing femtocell exclusion zones to minimize power in a heterogeneous network

In this paper, we propose an exclusion zone around each femtocell in a two-tier heterogeneous network, in which macro users enjoy exclusive interference-free access to a frequency band. The femto users, and macro users outside this region, share the remaining spectrum resource. The exclusion zone is...

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Bibliographic Details
Published in2014 IEEE Global Communications Conference pp. 4251 - 4256
Main Authors Chenlong Jia, Teng Joon Lim
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2014
Subjects
Approximation methods
Bandwidth
Base stations
Computer architecture
Interference
Microprocessors
Radio frequency
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Summary:In this paper, we propose an exclusion zone around each femtocell in a two-tier heterogeneous network, in which macro users enjoy exclusive interference-free access to a frequency band. The femto users, and macro users outside this region, share the remaining spectrum resource. The exclusion zone is a disc centered on the femto base station because here we only consider closed-access femtocells, meaning that the macro users within a femtocell cannot be off-loaded to the femto base station. Under the assumption that the bandwidth dedicated to macro users is proportional to the average probability that a macro user lies in the exclusion zone, the optimal exclusion zone radius that minimizes macro base station power consumption while satisfying all users' outage constraints is found.
ISSN:1930-529X
2576-764X
DOI:10.1109/GLOCOM.2014.7037475