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Performance of Multicell Joint Processing Planar Cellular Uplink in the Presence of Relay Nodes

Onireti, O, Imran, M and Hoshyar, R (2011) Performance of Multicell Joint Processing Planar Cellular Uplink in the Presence of Relay Nodes In: ICT Future Network and Mobile Summit 2010, 2010-06-16 - 2010-06-18, Florence Italy.

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Abstract

In this paper we compare the uplink performance of various deployment scenarios in the planar (hexagonal) cellular system where the received signals at multiple cells are jointly processed by a central processor. A mathematical model of the planar cellular system is presented and its performance metric is based on information theoretic sum rate, and group rate share. The system deployment is as follows; the density of the base station is decreased, relay node replaces alternate base stations and in the last scenario, alternate bases stations are removed while the left over base stations are equipped with an additional antenna. It is observed that in reduction in the density of base stations resulted in reduction in the achievable sum rate and makes the group rate unfair. The introduction of additional antenna resulted in an improvement in the rate (compared with the reduction in density scenario) without any improvement in group rate fairness to cell user at the cell edge. The replacement of base stations with relay node and the implementation of orthogonal amplify and forward scheme resulted in a reduction in the achievable sum rate however it produced a significant improvement in group rate fairness. The result suggest that relay deployment in multicell joint processing system does not improve the sum rate of the system rather it improves the rate share for cell edge users making the user rate distribution fairer.

Item Type: Conference or Workshop Item (Paper)
Additional Information:

Copyright 2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Depositing User: Symplectic Elements
Date Deposited: 05 Oct 2012 12:03
Last Modified: 23 Sep 2013 19:28
URI: http://epubs.surrey.ac.uk/id/eprint/534280

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