A new pipelined implementation for minimum norm sorting used in square root algorithm for MIMO-VBLAST systems

Authors:
Zahid Khan;Tughrul Arslan;John S. Thompson;Ahmet T. Erdogan
Affiliations:
The University of Edinburgh, Mayfield Road, Scotland, UK;The University of Edinburgh, Mayfield Road, Scotland, UK;The University of Edinburgh, Mayfield Road, Scotland, UK;The University of Edinburgh, Mayfield Road, Scotland, UK
Venue:
Proceedings of the conference on Design, automation and test in Europe
Year:
2007

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Abstract

Multiple Input - Multiple Output (MIMO) wireless technology involves highly complex vectors and matrix computations which are directly related to increased power and area consumption. This paper proposes an area and power efficient VLSI architecture that can serve the dual purpose of minimum norm sorting of rows as well as upper/lower block tri-angularization of matrices. The resources inside the architecture are shared among both operations and only primitive computations are used. Results indicate saving in silicon real estate as well as power consumption compared to previous architecture without degrading performance.