Outage Performance of Multi-Hop Decouple-and-Forward Relaying in Spatially Correlated MIMO Channels

In-Ho LEE  Joong-Hoo PARK  Dongwoo KIM  

IEICE TRANSACTIONS on Communications   Vol.E93-B   No.5   pp.1298-1301
Publication Date: 2010/05/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.1298
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
multi-hop MIMO,  decouple-and-forward relaying,  OSTBC,  outage probability,  spatially correlated channels,  

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In this letter, the outage performance of multi-hop multiple-input multiple-output (MIMO) relaying systems is analyzed for spatially correlated Rayleigh fading channels. We focus on nonregenerative MIMO decouple-and-forward (DCF) relaying in orthogonal space-time block code (OSTBC) transmission and provide its outage probability given the assumption of ideal relay gain. The outage obtained here is shown a lower bound for using practical gains, which gets tight at high SNR. We conduct numerical studies to assess the impact of the spatial correlation between antennas on the outage probability.