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The Effect of User Distribution on a Linear Cellular Multiple-Access Channel

Chatzinotas, S, Imran, MA and Tzaras, C (2008) The Effect of User Distribution on a Linear Cellular Multiple-Access Channel In: 3rd International Conference on Communications and Networking in China, 2008-08-25 - 2008-08-27, Hangzhou, PEOPLES R CHINA.

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The Gaussian Cellular Multiple-Access Channel (GCMAC) has been the starting point for studying the Shannon-theoretic limits of cellular systems. In 1994, a simple infinite GCMAC was initially introduced by Wyner and was subsequently extended by researchers to incorporate flat fading environments and power-law path loss models. However, Wynerlike models, preserve a fundamental assumption, namely the symmetry of User Terminals (UTs). In this paper, we investigate the effect of this assumption on the sum-rate capacity limits, by examining the case of distributed and thus asymmetric UTs. The model under investigation is a GCMAC over a linear cellular array in the presence of power-law path loss and flat fading. In this context, we study the effect of UT distribution for cell-centre and cell-edge UTs and we show that its effect is considerable only in the case of low cell density.

Item Type: Conference or Workshop Item (Paper)
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Copyright 2008 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.

Uncontrolled Keywords: Science & Technology, Technology, Engineering, Electrical & Electronic, Telecommunications, Engineering, Multicell Decoding, Cellular Gaussian Multiple-Access Channel, User Distribution, SHANNON-THEORETIC APPROACH
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Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Depositing User: Symplectic Elements
Date Deposited: 05 Oct 2012 10:26
Last Modified: 23 Sep 2013 19:28

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