On Limits of Wireless Communications in a Fading Environment when UsingMultiple Antennas
Wireless Personal Communications: An International Journal
Fundamentals of wireless communication
Fundamentals of wireless communication
A low complexity scalable MIMO detector
Proceedings of the 2006 international conference on Wireless communications and mobile computing
An efficient square-root algorithm for BLAST
ICASSP '00 Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 02
Communication Systems
Reduced-Complexity Soft MIMO Detection Based on Causal and Noncausal Decision Feedback
IEEE Transactions on Signal Processing
On the sphere-decoding algorithm I. Expected complexity
IEEE Transactions on Signal Processing - Part I
Generalized layered space-time codes for high data rate wireless communications
IEEE Transactions on Wireless Communications
On Some Near Optimal Low Complexity Detectors for MIMO Fading Channels
IEEE Transactions on Wireless Communications
A universal lattice code decoder for fading channels
IEEE Transactions on Information Theory
Algorithm and implementation of the K-best sphere decoding for MIMO detection
IEEE Journal on Selected Areas in Communications
A power efficient baseband engine for multiuser mobile MIMO-OFDMA communications
IEEE Transactions on Circuits and Systems Part I: Regular Papers
A 1.1-Gb/s 115-pJ/bit configurable MIMO detector using 0.13- µm CMOS technology
IEEE Transactions on Circuits and Systems II: Express Briefs
Efficient Detection Algorithms for MIMO Communication Systems
Journal of Signal Processing Systems
Hi-index | 0.00 |
In this paper, we propose a power-efficient configurable multiple-input-multiple-output (MIMO) detector, supporting QPSK, 16-QAM, and 64-QAM with low complexity. The approach divides a large MIMO detector into two subsystems: a core detector and a residual detector. The core detector, a low-cost 2 × 2 V-BLAST with ML detector, is used to detect the first two significant outputs. This detector not only efficiently increases the reliability of the entire MIMO detector through its ML performance in mitigating error propagation but also reduces the computational complexity by its search space reduction capability to decrease the computation from O(C2) to O(C) (C is the constellation size). The residual detector is an ordered successive interference cancellation (OSIC) detector that detects the rest outputs. The results of bit-error-rate simulations demonstrate that the proposed detector significantly outperforms the OSIC detector. Furthermore, two complete ASIC implementations fabricated by 0.13-µm 1P8M CMOS technology are presented. We show that the proposed detector, which is configurable from 2 × 2 to 6 × 4 MIMO configurations, has the lowest complexity compared to other fabricated works with 64-QAM demodulation. Moreover, the measured normalized power efficiency of 3.8 Mb/s/mW is shown to be the most power-efficient design compared with the designs of other fabricated works.