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Statistics of the Carrier-to-Interference Ratio in C/TDMA Cellular Mobile Radio Systems Applying Multi-User Detection

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Abstract

In cellular mobile radio systems, interference is a limiting factor with respect to both system performance and system capacity. Therefore, profound knowledge of the statistics of the carrier-to-interference ratio C/I, given by the received carrier power C and the sum I of received powers associated with various interferers, is essential. In this communication, a general approach allowing the calculation of C/I for both the up- and the downlink of any interference limited mobile radio system is presented. Power control algorithms are explicitly considered. The general approach is used to provide insight into the statistics of C/I of C/TDMA systems applying multi-user detection, which are promising candidates for third generation mobile radio systems. For these C/TDMA systems applying multi-user detection, a representative selection of results is collected from the general approach and presented in this communication. Furthermore, results concerning the composition of the intercell interference are given. These results are of particular interest when plumbing potential benefits of worthwhile future enhanced multi-user detection schemes which explicitly incorporate a given number of intercell interferers.

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  1. Research Group for RF Communications, P.O. Box, University of Kaiserslautern, 3049, D-67653, Kaiserslautern, Germany.

    Andreas Steil

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Steil, A. Statistics of the Carrier-to-Interference Ratio in C/TDMA Cellular Mobile Radio Systems Applying Multi-User Detection. Wireless Personal Communications 5, 259–277 (1997). https://doi.org/10.1023/A:1008850632123

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