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Capacity of Cellular Uplink with Multiple Tiers of Users and Path Loss

Kaltakis, D, Katranaras, E, Imran, MA and Tzaras, C (2008) Capacity of Cellular Uplink with Multiple Tiers of Users and Path Loss In: Fourth Advanced International Conference on Telecommunications, 2008. AICT '08, 2008-06-08 - 2008-06-14, Athens.

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With the emergence and continuous growth of wireless data services, the value of a wireless network is not only defined by how many users it can support, but also by its ability to deliver higher data rates. Information theoretic capacity of cellular systems with fading is usually estimate.d using models originally inspired by Wyner's gaussian cellular multiple access channel (GCMAC). In this paper we extend this model to study the cellular system with users distributed over the cellular coverage area. Based on the distance from the cell-site receiver, users are grouped as tiers, and received signals from each tier are scaled using a distance dependent attenuation factor. The optimum capacity in fading environment is then found by calculating the path-loss for users in each tier using a specific path-loss law and some interesting insights are derived. The results correspond to a more realistic model which boils down to Wyner's model with fading, with appropriate substitutions of parameter values. The results are verified using Wyner's model with fading and Monte-Carlo simulations. Insights are provided for the real world scenarios.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Authors :
Date : 20 June 2008
Identification Number : 10.1109/AICT.2008.49
Contributors :
Additional Information : © 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, 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 component of this work in other works.
Depositing User : Symplectic Elements
Date Deposited : 19 Dec 2012 11:32
Last Modified : 09 Jun 2014 13:43

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