NDLI: Performance of multicell joint processing planar cellular uplink in the presence of relay nodes

Content Provider	IEEE Xplore Digital Library
Author	Onireti, O. Imran, M.A. Hoshyar, R.
Copyright Year	2010
Description	Author affiliation: Centre for Communications Systems Research, Guildford, GU2 7XH, UK (Onireti, O.; Imran, M.A.; Hoshyar, R.)
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 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.
Starting Page	1
Ending Page	8
File Size	184339
Page Count	8
File Format	PDF
e-ISBN	9781905824182
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-16
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	IIMC
Subject Keyword	Base stations Relay AWGN Sum rate Rayleigh channels Covariance matrix Relays Joints Uplink Group rate distribution
Content Type	Text
Resource Type	Article

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