Rate and power allocation for discrete-rate link adaptation
dc.contributor.author | Gjendemsjø, Anders | eng |
dc.contributor.author | Øien, Geir Egil | eng |
dc.contributor.author | Holm, Henrik | eng |
dc.contributor.author | Alouini, Mohamed-Slim | eng |
dc.contributor.author | Gesbert, David | eng |
dc.contributor.author | Hole, Kjell Jørgen | eng |
dc.contributor.author | Orten, Pål | eng |
dc.date.accessioned | 2014-12-19T08:31:04Z | |
dc.date.available | 2014-12-19T08:31:04Z | |
dc.date.issued | 2008-01-09 | eng |
dc.identifier.issn | 1687-1472 | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/8985 | |
dc.description.abstract | Link adaptation, in particular adaptive coded modulation (ACM), is a promising tool for bandwidth-efficient transmission in a fading environment. The main motivation behind employing ACM schemes is to improve the spectral efficiency of wireless communication systems. In this paper, using a finite number of capacity achieving component codes, we propose new transmission schemes employing constant power transmission, as well as discrete- and continuous-power adaptation, for slowly varying flat-fading channels. We show that the proposed transmission schemes can achieve throughputs close to the Shannon limits of flat-fading channels using only a small number of codes. Specifically, using a fully discrete scheme with just four codes, each associated with four power levels, we achieve a spectral efficiency within 1 dB of the continuous-rate continuous-power Shannon capacity. Furthermore, when restricted to a fixed number of codes, the introduction of power adaptation has significant gains with respect to average spectral efficiency and probability of no transmission compared to a constant power scheme. | en_US |
dc.language.iso | eng | eng |
dc.publisher | Springer | en_US |
dc.rights | Attribution CC BY | eng |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0 | eng |
dc.title | Rate and power allocation for discrete-rate link adaptation | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.date.updated | 2014-12-19T08:27:21Z | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright 2014 2008 Anders Gjendemsjø et al | en_US |
dc.source.articlenumber | 394124 | |
dc.identifier.doi | https://doi.org/10.1155/2008/394124 | |
dc.identifier.cristin | 336472 | |
dc.source.journal | EURASIP Journal on Wireless Communications and Networking |