Skip to main content

Spectral and Energy Efficiency Trade-offs in Cellular Networks

Author(s): Tsilimantos, Dimitrios; Gorce, Jean-Marie; Jaffres-Runser, Katia; Poor, H. Vincent

To refer to this page use:
Abstract: This paper presents a simple and effective method to study the spectral and energy efficiency (SE-EE) trade-off in cellular networks, an issue that has attracted significant recent interest in the wireless community. The proposed theoretical framework is based on an optimal radio resource allocation of transmit power and bandwidth for the downlink direction, applicable for an orthogonal cellular network. The analysis is initially focused on a single cell scenario, for which in addition to the solution of the main SE-EE optimization problem, it is proved that a traffic repartition scheme can also be adopted as a way to simplify this approach. By exploiting this interesting result along with properties of stochastic geometry, this work is extended to a more challenging multicell environment, where interference is shown to play an essential role and for this reason several interference reduction techniques are investigated. Special attention is also given to the case of low signal-to-noise ratio (SNR) and a way to evaluate the upper bound on EE in this regime is provided. This methodology leads to tractable analytical results under certain common channel properties, and thus allows the study of various models without the need for demanding system-level simulations.
Publication Date: 11-Aug-2015
Citation: Tsilimantos, Dimitrios, Gorce, Jean-Marie, Jaffres-Runser, Katia, Vincent Poor, H. (2016). Spectral and Energy Efficiency Trade-offs in Cellular Networks. IEEE Transactions on Wireless Communications, 15 (1), 54 - 66. doi:10.1109/twc.2015.2466541
DOI: doi:10.1109/twc.2015.2466541
ISSN: 1536-1276
Pages: 54 - 66
Type of Material: Journal Article
Journal/Proceeding Title: IEEE Transactions on Wireless Communications
Version: Author's manuscript

Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.