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Adaptive Space–Time Coding Using ARQ
- Source :
- IEEE Transactions on Vehicular Technology. 64:4331-4337
- Publication Year :
- 2015
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2015.
-
Abstract
- We study the energy-limited outage probability of the block space–time coding (STC)-based systems utilizing automatic repeat request (ARQ) feedback and adaptive power allocation. Taking the ARQ feedback costs into account, we derive closed-form solutions for the energy-limited optimal power allocation and investigate the diversity gain of different STC-ARQ schemes. In addition, sufficient conditions are derived for the usefulness of ARQ in terms of energy-limited outage probability. The results show that, for a large range of feedback costs, the energy efficiency is substantially improved by the combination of ARQ and STC techniques if optimal power allocation is utilized.
- Subjects :
- Computer Networks and Communications
Computer science
Automatic repeat request
ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS
Real-time computing
Aerospace Engineering
Hybrid automatic repeat request
Data_CODINGANDINFORMATIONTHEORY
Selective Repeat ARQ
Diversity gain
Control theory
Automotive Engineering
Electrical and Electronic Engineering
Space–time code
Efficient energy use
Subjects
Details
- ISSN :
- 19399359 and 00189545
- Volume :
- 64
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Vehicular Technology
- Accession number :
- edsair.doi...........aa6dce959b1f6bbf1efdfede8a8d50a5