On the Effect of Uplink Power Control on Temporal Retransmission Diversity

Rabe Arshad, Laila H. Afify, Hesham Elsawy, Tareq Y. Al-Naffouri, Mohamed-Slim Alouini

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Using stochastic geometry, this article studies the retransmission performance in uplink cellular networks with fractional path-loss inversion power control (FPC). We first show that the signal-to-interference-ratio (SIR) is correlated across time, which imposes temporal diversity loss in the retransmission performance. In particular, FPC with lower path-loss compensation factor decreases inter-cell interference but suffers from degraded retransmission diversity. On the other hand, full path-loss inversion achieves almost full temporal diversity (i.e., temporal SIR independence) at the expense of increased inter-cell interference. To this end, the results show that ramping-down the power upon transmission failure improves the overall coverage probability in interference-limited uplink networks.
Original languageEnglish (US)
Pages (from-to)309-312
Number of pages4
JournalIEEE Wireless Communications Letters
Volume8
Issue number1
DOIs
StatePublished - Sep 24 2018

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