A statistical model of uplink inter-cell interference with slow and fast power control mechanisms

Hina Tabassum, Ferkan Yilmaz, Zaher Dawy, Mohamed-Slim Alouini

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Uplink power control is in essence an interference mitigation technique that aims at minimizing the inter-cell interference (ICI) in cellular networks by reducing the transmit power levels of the mobile users while maintaining their target received signal quality levels at base stations. Power control mechanisms directly impact the interference dynamics and, thus, affect the overall achievable capacity and consumed power in cellular networks. Due to the stochastic nature of wireless channels and mobile users' locations, it is important to derive theoretical models for ICI that can capture the impact of design alternatives related to power control mechanisms. To this end, we derive and verify a novel statistical model for uplink ICI in Generalized-K composite fading environments as a function of various slow and fast power control mechanisms. The derived expressions are then utilized to quantify numerically key network performance metrics that include average resource fairness, average reduction in power consumption, and ergodic capacity. The accuracy of the derived expressions is validated via Monte-Carlo simulations. Results are generated for multiple network scenarios, and insights are extracted to assess various power control mechanisms as a function of system parameters. © 1972-2012 IEEE.
Original languageEnglish (US)
Pages (from-to)3953-3966
Number of pages14
JournalIEEE Transactions on Communications
Volume61
Issue number9
DOIs
StatePublished - Sep 2013

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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