Abstract:
This work presents a proposal of an implementation of a Sorted QR decomposition using fixed-point arithmetic for STBC-VBLAST space-time scheme. This proposal was verified...Show MoreMetadata
Abstract:
This work presents a proposal of an implementation of a Sorted QR decomposition using fixed-point arithmetic for STBC-VBLAST space-time scheme. This proposal was verified in the context of a MIMO receiver, the effects of finite-length arithmetic and limited precision are evaluated in terms of their impact on the receiver bit error rate (BER). We will define the minimum fixed-point word size required not to adversely impact performance for nt transmit antennas and nR receive antennas. Our analysis of MIMO receiver under these conditions shows a strong robustness on the numerical precision, which allows to have a receiver performance very close to that obtained with floating point arithmetic in terms of BER, therefore we believe this scheme is attractive candidate for its implementation in current communications standards.
Published in: 2017 Wireless Telecommunications Symposium (WTS)
Date of Conference: 26-28 April 2017
Date Added to IEEE Xplore: 08 June 2017
ISBN Information: