Adaptive Distributed Space-Time Coding for Cooperative MIMO Relaying Systems


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


        An adaptive randomized distributed space-time coding (DSTC) scheme and algorithms are proposed for two-hop cooperative MIMO networks. Linear minimum mean square error (MMSE) receivers and an amplify-and-forward (AF) cooperation strategy are considered. In the proposed DSTC scheme, a randomized matrix obtained by a feedback channel is employed to transform the space-time coded matrix at the relay node. Linear MMSE expressions are devised to compute the parameters of the adaptive randomized matrix and the linear receive filter.
A stochastic gradient algorithm is also developed to compute the parameters of the adaptive randomized matrix with reduced computational complexity. We also derive the upper bound of the error probability of a cooperative MIMO system employing the randomized space-time coding scheme first. 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 for Cooperative {MIMO} Relaying Systems",
	pages = "611-615",
	booktitle = "{IEEE} International Symposium on Wireless Communication Systems (ISWCS)",
	address = {Paris, France},
	month = Aug,
	year = 2012,
	hsb = hsb999910269895 ,


 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.