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On Energy Efficient Inter-Frequency Small Cell Discovery in Heterogeneous Networks

Onireti, OS, Imran, A, Imran, MA and Tafazolli, R (2015) On Energy Efficient Inter-Frequency Small Cell Discovery in Heterogeneous Networks In: IEEE International Conference on Communications, 2015-06-08 - 2015-06-12, London.

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Abstract

In this paper, we investigate the optimal inter- frequency small cell discovery (ISCD) periodicity for small cells deployed on carrier frequency other than that of the serving macro cell. We consider that the small cells and user terminals (UTs) positions are modeled according to a homogeneous Poisson Point Process (PPP). We utilize polynomial curve fitting to approximate the percentage of time the typical UT misses small cell offloading opportunity, for a fixed small cell density and fixed UT speed. We then derive analytically, the optimal ISCD periodicity that minimizes the average UT energy consumption (EC). Furthermore, we also derive the optimal ISCD periodicity that maximizes the average energy efficiency (EE), i.e. bit- per-joule capacity. Results show that the EC optimal ISCD periodicity always exceeds the EE optimal ISCD periodicity, with the exception of when the average ergodic rate in both tiers are equal, in which the optimal ISCD periodicity in both cases also becomes equal.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Authors :
AuthorsEmailORCID
Onireti, OSUNSPECIFIEDUNSPECIFIED
Imran, AUNSPECIFIEDUNSPECIFIED
Imran, MAUNSPECIFIEDUNSPECIFIED
Tafazolli, RUNSPECIFIEDUNSPECIFIED
Date : 8 June 2015
Identification Number : 10.1109/ICC.2015.7248291
Additional Information : (c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works
Depositing User : Symplectic Elements
Date Deposited : 16 Sep 2015 09:55
Last Modified : 16 Sep 2015 09:55
URI: http://epubs.surrey.ac.uk/id/eprint/807436

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