Communications Infrastructure. Systems and Applications in Europe. First International ICST Conference, EuropeComm 2009, London, UK, August 11-13, 2009, Revised Selected Papers

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
Sang-Do Lee1,*, Young-Chai Ko2,*
  • 1: Samsung Electronics
  • 2: Korea University
*Contact email: sardor.leed@samsung.com, koyc@korea.ac.kr

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.