Information Theoretic Uplink Capacity of the Linear Cellular Array

Chatzinotas, S., Imran, M. A. and Tzaras, C. (2008) Information Theoretic Uplink Capacity of the Linear Cellular Array. In: 2008 Fourth Advanced International Conference on Telecommunications (AICT '08), Athens, Greece, 08-13 Jun 2008, pp. 249-254. ISBN 9780769531625 (doi:10.1109/AICT.2008.35)

Chatzinotas, S., Imran, M. A. and Tzaras, C. (2008) Information Theoretic Uplink Capacity of the Linear Cellular Array. In: 2008 Fourth Advanced International Conference on Telecommunications (AICT '08), Athens, Greece, 08-13 Jun 2008, pp. 249-254. ISBN 9780769531625 (doi:10.1109/AICT.2008.35)

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Abstract

In the information-theoretic literature, Wyner's model has been the starting point for studying the capacity limits of cellular systems. This simple cellular model was adopted and extended by researchers in order to incorporate flat fading and path loss. However, the majority of these extensions preserved a fundamental assumption of Wyner's model, namely the collocation of User Terminals (UTs). In this paper, we alleviate this assumption and we evaluate the effect of user distribution on the sum-rate capacity. In this context, we show that the effect of user distribution is only considerable in low cell-density systems and we argue that "collocated" models can be utilized to approximate the "distributed" ones in the high cell-density regime. Subsequently, we provide closed forms for the calculation of the interference factors of "collocated" models given the system parameters. In addition, the asymptotics of the per-cell sum-rate capacity are investigated. Finally, the presented results are interpreted in the context of practical cellular systems using appropriate figures of merit.

Item Type:Conference Proceedings
Additional Information:This research has been funded by the following Industrial Companies who are Members of Mobile VCE - BBC, BT, Huawei, Nokia, Nokia Siemens Networks, Nortel, Vodafone.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Imran, Professor Muhammad
Authors: Chatzinotas, S., Imran, M. A., and Tzaras, C.
College/School:College of Science and Engineering > School of Engineering
ISBN:9780769531625
Published Online:20 June 2008

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