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Adaptive power allocation for HARQ with Chase combining in correlated Rayleigh fading channels
McGill University, Canada .
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-7599-4367
2014 (English)In: IEEE Wireless Communications Letters, ISSN 2162-2337, E-ISSN 2162-2345, Vol. 3, no 2, 169-172 p.Article in journal (Refereed) Published
Abstract [en]

We consider the problem of minimizing the packet drop probability (PDP) under an average transmit power constraint for Chase combining (CC)-based hybrid-automatic repeat request (HARQ) schemes in correlated Rayleigh fading channels. We propose a method to find a solution to the non-convex optimization problem using an exact expression of the outage probability. However, the complexity of this method is high. Therefore, we propose an alternative approach in which we use an asymptotically equivalent expression for the outage probability and reformulate it as a geometric programming problem (GPP), which can be efficiently solved using convex optimization algorithms.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2014. Vol. 3, no 2, 169-172 p.
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:liu:diva-129056DOI: 10.1109/WCL.2013.122113.130793ISI: 000209681200013OAI: oai:DiVA.org:liu-129056DiVA: diva2:935035
Available from: 2016-06-09 Created: 2016-06-09 Last updated: 2016-06-27

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Larsson, Erik G
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