Co-Channel Interference in Cellular Mobile Radio Systems with Coded PSK and Diversity

  • Authors:

  • Ezio Biglieri;Giuseppe Caire;Giorgio Taricco;Javier Ventura-Traveset

  • Affiliations:

  • Dipartimento di Elettronica, Politecnico, Corso Duca degli Abruzzi 24, I-10129 Torino, Italy;Dipartimento di Elettronica, Politecnico, Corso Duca degli Abruzzi 24, I-10129 Torino, Italy;Dipartimento di Elettronica, Politecnico, Corso Duca degli Abruzzi 24, I-10129 Torino, Italy;European Space Agency/ESTEC, P.O. Box 299, 2200 AG Noordwijk, The Netherlands. E-mail: jventura@estec.esa.nl

  • Venue:
  • Wireless Personal Communications: An International Journal
  • Year:
  • 1998

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Abstract

In this paper, the performance of coding and diversity in narrowbandwireless cellular systems affected by fading, shadowing and co-channelinterference is analyzed. We consider low-order diversity, that can bepractically realized for both coherent and differential phase shift keying.We assume that the shadowing random processes affecting all transmittedsignals do not vary appreciably over the transmission duration. Fading, onthe contrary, is assumed to vary more rapidly. Our main focus here is onoutage probability. After choosing a performance indicator, its expectationis taken with respect to fading and co-channel interference, conditionallyon shadowing. Hence, the resulting average performance indicator is a randomvariable. The probability that this random variable exceeds a specifiedthreshold defines the outage probability. We consider as performanceindicators (i) the channel cut-off rate R_0 and (ii) the biterror rate P_b of an actual coded scheme. As we are interestedin interference-limited, rather than power-limited systems, we evaluate bothR_0 and P_b for very high signal-to-noise ratios.Results are parameterized by the frequency reuse factor and the diversityorder.