QoS-constrained Energy Minimization in Multiuser Multicarrier Systems

Qing Bai; Michel Ivrlač; Josef Nossek

Mobile Lightweight Wireless Systems. First International ICST Conference, MOBILIGHT 2009, Athens, Greece, May 18-20, 2009, Revised Selected Papers

Research Article

QoS-constrained Energy Minimization in Multiuser Multicarrier Systems

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@INPROCEEDINGS{10.1007/978-3-642-03819-8_18,
    author={Qing Bai and Michel Ivrlač and Josef Nossek},
    title={QoS-constrained Energy Minimization in Multiuser Multicarrier Systems},
    proceedings={Mobile Lightweight Wireless Systems. First International ICST Conference, MOBILIGHT 2009, Athens, Greece, May 18-20, 2009, Revised Selected Papers},
    proceedings_a={MOBILIGHT},
    year={2012},
    month={6},
    keywords={resource allocation multicarrier systems cross-layer optimization energy minimization},
    doi={10.1007/978-3-642-03819-8_18}
}

Qing Bai
Michel Ivrlač
Josef Nossek
Year: 2012
QoS-constrained Energy Minimization in Multiuser Multicarrier Systems
MOBILIGHT
Springer
DOI: 10.1007/978-3-642-03819-8_18

Qing Bai¹^,*, Michel Ivrlač¹, Josef Nossek¹

1: Technische Universität München

*Contact email: bai.qing@nws.ei.tum.de

Abstract

In this paper the QoS-constrained resource allocation problem in multicarrier systems is considered. Within the established cross-layer framework, parameters for subchannel assignment, adaptive modulation and coding, and ARQ/HARQ protocols are jointly optimized. Instead of the conventional transmit power minimization, the total energy consumption for the successful transmissions of all information bits is set as the optimization goal. The nonconvex primal problem is solved by using Lagrange dual decomposition and the ellipsoid method. Numerical results indicate that the recovered primal solution is well acceptable in performance, and efficient in terms of computational effort.

Keywords: resource allocation multicarrier systems cross-layer optimization energy minimization

Published: 2012-06-01

: http://dx.doi.org/10.1007/978-3-642-03819-8_18