Distributed Differential Space-Time Coding for Broadband Cooperative Networks

In this paper, we investigate distributed differential space-time block coding (STBC) for cooperative communications over frequency-selective fading channels. We carefully exploit the unitary structure of the orthogonal STBC to design a low complexity differential STBC receiver for multi-carrier bro...

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Vydáno v:IEEE VTS Vehicular Technology Conference (1999) s. 1 - 6
Hlavní autoři: Muhaidat, S., Ho, P., Uysal, M.
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.04.2009
Témata:
Block codes
Computer networks
Distributed computing
Electronic mail
Frequency-selective fading channels
OFDM
Performance analysis
Power control
Relays
Transmitting antennas
ISSN:1550-2252
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Shrnutí:In this paper, we investigate distributed differential space-time block coding (STBC) for cooperative communications over frequency-selective fading channels. We carefully exploit the unitary structure of the orthogonal STBC to design a low complexity differential STBC receiver for multi-carrier broadband cooperative networks. We consider amplify-and-forward relaying and assume a single-relay scenario. Under the assumption of perfect power control for the relay terminal and high signal-to- noise ratio for the underlying links, our performance analysis demonstrates that the considered scheme is able to exploit fully the spatial diversity. We further present Monte Carlo simulation results to confirm our analytical observations.
ISSN:1550-2252
DOI:10.1109/VETECS.2009.5073503