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Link adaptation algorithms for improved delivery of delay- and error-sensitive packet-data services over wireless networks

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10.1007/s11276-008-0156-8
 
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hdl:2117/7069

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López Benítez, Miguel
Gozalvez, Javier
Document typeArticle
Defense date2010-04
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
Link Adaptation is a radio resource management technique that assesses the channel conditions and selects a transport mode, from a set of possible options, which is optimised for these conditions according to a predefined criterion. The optimum transport mode is commonly determined so as to maximise the throughput. Although this approach may be appropriate for best-effort services, its suitability for multimedia services, usually characterised by tight delay and error performance constraints, has been questioned. As a result, a number of alternative algorithms have been proposed in the literature. In this context, this paper presents and evaluates in a dynamic radio environment several Link Adaptation algorithms designed to enhance the provision of delay- and error-sensitive multimedia packet-data services over wireless systems. The obtained results demonstrate that significant improvements in terms of throughput, transmission delay, error performance and operation of Link Adaptation itself can be obtained with the proposed schemes.
CitationLópez, M.; Gozalvez, J. Link adaptation algorithms for improved delivery of delay- and error-sensitive packet-data services over wireless networks. "Wireless networks", Abril 2010, vol. 16, núm. 3, p. 593-606. 
URIhttp://hdl.handle.net/2117/7069
DOI10.1007/s11276-008-0156-8
ISSN1022-0038
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