Leveraging coherent distributed space-time codes for noncoherent communication in relay networks via training


Autoria(s): Rajan, Susinder G; Rajan, Sundar B
Data(s)

01/02/2009

Resumo

For point to point multiple input multiple output systems, Dayal-Brehler-Varanasi have proved that training codes achieve the same diversity order as that of the underlying coherent space time block code (STBC) if a simple minimum mean squared error estimate of the channel formed using the training part is employed for coherent detection of the underlying STBC. In this letter, a similar strategy involving a combination of training, channel estimation and detection in conjunction with existing coherent distributed STBCs is proposed for noncoherent communication in Amplify-and-Forward (AF) relay networks. Simulation results show that the proposed simple strategy outperforms distributed differential space-time coding for AF relay networks. Finally, the proposed strategy is extended to asynchronous relay networks using orthogonal frequency division multiplexing.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/19355/1/12.pdf

Rajan, Susinder G and Rajan, Sundar B (2009) Leveraging coherent distributed space-time codes for noncoherent communication in relay networks via training. In: IEEE Transactions On Wireless Communications, 8 (2). pp. 683-688.

Publicador

IEEE

Relação

http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=4786429

http://eprints.iisc.ernet.in/19355/

Palavras-Chave #Electrical Communication Engineering
Tipo

Journal Article

PeerReviewed