Lattice basis reduction: improved practical algorithms and solving subset sum problems
Mathematical Programming: Series A and B
Advanced receiver algorithms for MIMO wireless communications
Proceedings of the conference on Design, automation and test in Europe: Proceedings
Introduction to Space-Time Wireless Communications
Introduction to Space-Time Wireless Communications
Algorithm and implementation of the K-best sphere decoding for MIMO detection
IEEE Journal on Selected Areas in Communications
EURASIP Journal on Advances in Signal Processing
High-throughput low-complexity MIMO detector based on K-best algorithm
Proceedings of the 19th ACM Great Lakes symposium on VLSI
Look-ahead sphere decoding: algorithm and performance evaluation
ISWCS'09 Proceedings of the 6th international conference on Symposium on Wireless Communication Systems
Efficient FPGA implementation of MIMO decoder for mobile WiMAX system
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Complexity-efficient enumeration techniques for soft-input, soft-output sphere decoding
IEEE Communications Letters
Iterative MIMO sphere decoding throughput guarantees under realistic channel conditions
IEEE Communications Letters
A low-area flexible MIMO detector for WiFi/WiMAX standards
Proceedings of the Conference on Design, Automation and Test in Europe
A scalable VLSI architecture for soft-input soft-output depth-first sphere decoding
IEEE Transactions on Circuits and Systems II: Express Briefs
A radius adaptive K-Best decoder with early termination: algorithm and VLSI architecture
IEEE Transactions on Circuits and Systems Part I: Regular Papers - Special section on 2009 IEEE custom integrated circuits conference
Energy-efficient MIMO detection using unequal error protection for embedded joint decoding system
Proceedings of the 48th Design Automation Conference
A power-efficient soft-output detector for spatial-multiplexing MIMO communications
Journal of Electrical and Computer Engineering - Special issue on Implementations of Signal-Processing Algorithms for OFDM Systems
Parallel High Throughput Soft-Output Sphere Decoding Algorithm
Journal of Signal Processing Systems
Area-Efficient Antenna-Scalable MIMO Detector for K-best Sphere Decoding
Journal of Signal Processing Systems
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Maximum likelihood (ML) detection provides optimum error rate performance for uncoded multiple-input multiple-output (MIMO) systems. However, circuit complexity of a straightforward implementation of ML detection is uneconomic for high-rate systems. This paper addresses the VLSI implementation trade-offs of a MIMO detection algorithm that achieves close-to ML error rate performance with reduced computational complexity. The described implementations in a 0.25 μm CMOS technology for 4-4 MIMO systems feature a simple data-path, achieve high throughput, and use small silicon area. Important contributing factors to these results are efficient enumeration strategies and the application of simplified norms and sophisticated scheduling techniques together with a new low-complexity preprocessing scheme.