2nd International IEEE Conference on Communication System Software and Middleware

Research Article

On the capacity of certain virtual MIMO schemes for mobie communications

  • @INPROCEEDINGS{10.1109/COMSWA.2007.382615,
        author={ Anubala S Varikat},
        title={On the capacity of certain virtual MIMO schemes for mobie communications},
        proceedings={2nd International IEEE Conference on Communication System Software and Middleware},
        publisher={IEEE},
        proceedings_a={COMSWARE},
        year={2007},
        month={7},
        keywords={AF  DF  Downlink  Interlink  MIMO  SF  UE  Uplink  capacity  cooperative  distributed  mobile  virtual},
        doi={10.1109/COMSWA.2007.382615}
    }
    
  • Anubala S Varikat
    Year: 2007
    On the capacity of certain virtual MIMO schemes for mobie communications
    COMSWARE
    IEEE
    DOI: 10.1109/COMSWA.2007.382615
Anubala S Varikat1,*
  • 1: Sasken Communication Technologies Ltd. Bangalore, India
*Contact email: anubala@sasken.com

Abstract

We consider a virtual multiple-input-multiple-output (MIMO) system, where mobile user equipments (UE) in the vicinity of each other act as antennas for each other for communication with a multiple-antenna base station (BS). The UEs communicate with each other on an 'Interlink', and with the BS on an Up/Downlink. A 'Sample-and-Forward' strategy is proposed for the downlink. The capacity of the proposed scheme and of a conventional Decode-and-Forward scheme for the uplink are investigated. Rules for optimal partitioning of time and bandwidth resources between the Interlink and the Up/Downlink are obtained. Capacity outage curves are provided to compare the virtual MIMO schemes with conventional MIMO and single-input-single-output (SISO) schemes.