Adaptive Distributed Space-Time Coding Based on Adjustable Code Matrices for Cooperative MIMO Relaying Systems


T. Peng, R. C. d. Lamare, A. Schmeink,


        An adaptive distributed space-time coding (DSTC) scheme is proposed for two-hop cooperative MIMO networks. Linear minimum mean square error (MMSE) receive filters and adjustable matrices subject to a power constraint are considered with an amplify-and-forward (AF) cooperation strategy. In the proposed DSTC scheme, an adjustable matrix obtained by a feedback channel is employed to transform the space-time coded matrix at the relay node. Linear MMSE expressions of the adjustable code matrices based on the mean square error (MSE) and the maximum likelihood (ML) criteria are derived. The effects of the limited feedback and the feedback errors on the performance are considered. A stochastic gradient (SG) algorithm is also developed with reduced computational complexity. The simulation results show that the proposed algorithms obtain significant performance gains as compared to existing DSTC schemes.

BibTEX Reference Entry 

	author = {Tong Peng and Rodrigo Caiado de Lamare and Anke Schmeink},
	title = "Adaptive Distributed Space-Time Coding Based on Adjustable Code Matrices for Cooperative {MIMO} Relaying Systems",
	pages = "2692-2703",
	journal = "{IEEE} Transactions on Communications",
	volume = "61",
	number = "7",
	doi = 10.1109/TCOMM.2013.043013.120788,
	month = Jul,
	year = 2013,
	hsb = hsb999910308253,


 Download paper  Download bibtex-file

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights there in are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.