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Predictive and Core-network Efficient RRC Signalling for Active State Handover in RANs with Control/Data Separation

Mohamed, Abdelrahim, Onireti, O, Imran, MA, Imran, A and Tafazolli, Rahim (2016) Predictive and Core-network Efficient RRC Signalling for Active State Handover in RANs with Control/Data Separation IEEE Transactions on Wireless Communications, 16 (3). pp. 1423-1436.

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Abstract

Frequent handovers (HOs) in dense small cell deployment scenarios could lead to a dramatic increase in signalling overhead. This suggests a paradigm shift towards a signalling conscious cellular architecture with intelligent mobility management. In this direction, a futuristic radio access network with a logical separation between control and data planes has been proposed in research community. It aims to overcome limitations of the conventional architecture by providing high data rate services under the umbrella of a coverage layer in a dual connection mode. This approach enables signalling efficient HO procedures, since the control plane remains unchanged when the users move within the footprint of the same umbrella. Considering this configuration, we propose a core-network efficient radio resource control (RRC) signalling scheme for active state HO and develop an analytical framework to evaluate its signalling load as a function of network density, user mobility and session characteristics. In addition, we propose an intelligent HO prediction scheme with advance resource preparation in order to minimise the HO signalling latency. Numerical and simulation results show promising gains in terms of reduction in HO latency and signalling load as compared with conventional approaches.

Item Type: Article
Subjects : Electronic Engineering
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Mohamed, Abdelrahimabdelrahim.mohamed@surrey.ac.ukUNSPECIFIED
Onireti, OUNSPECIFIEDUNSPECIFIED
Imran, MAUNSPECIFIEDUNSPECIFIED
Imran, AUNSPECIFIEDUNSPECIFIED
Tafazolli, RahimR.Tafazolli@surrey.ac.ukUNSPECIFIED
Date : 23 December 2016
Identification Number : 10.1109/TWC.2016.2644608
Copyright Disclaimer : Copyright 2016 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.
Uncontrolled Keywords : Base stations, cellular networks, context awareness, control data separation architecture, dual connectivity, handover, prediction algorithms, radio access networks.
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 03 Jan 2017 15:53
Last Modified : 07 Jul 2017 11:10
URI: http://epubs.surrey.ac.uk/id/eprint/813186

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