Research Article
Hybrid -QAM with Adaptive Modulation and Selection Combining in MIMO Systems
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@INPROCEEDINGS{10.1007/978-3-642-11284-3_10, author={Sang-Do Lee and Young-Chai Ko}, title={Hybrid -QAM with Adaptive Modulation and Selection Combining in MIMO Systems}, proceedings={Communications Infrastructure. Systems and Applications in Europe. First International ICST Conference, EuropeComm 2009, London, UK, August 11-13, 2009, Revised Selected Papers}, proceedings_a={EUROPECOMM}, year={2012}, month={5}, keywords={Adaptive Modulation Variable Rate Variable Power Selection Combining MIMO}, doi={10.1007/978-3-642-11284-3_10} }- Sang-Do Lee
Young-Chai Ko
Year: 2012
Hybrid -QAM with Adaptive Modulation and Selection Combining in MIMO Systems
EUROPECOMM
Springer
DOI: 10.1007/978-3-642-11284-3_10
Abstract
In this paper, we propose a hybrid -ary Quadrature Amplitude Modulation (-QAM) transmission scheme that jointly uses adaptive modulation and selection combining for singular value decomposition (SVD)-based multiple-input multiple-output (MIMO) systems (AMSC-MIMO). We derive exact closed-form expressions of the performance of the proposed scheme in terms of the average spectral efficiency and the outage probability. Numerical results show that the proposed hybrid -QAM scheme offers higher spectral efficiency and lower outage probability than the conventional adaptive modulation in MIMO systems.
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