A low complexity algorithm and architecture for MIMO detection without QR decomposition

Lian Huai; Samer Hijazi; Raul Casas; Gerald E. Sobelman

doi:10.1109/ASICON.2015.7517003

A low complexity algorithm and architecture for MIMO detection without QR decomposition

Lian Huai, Samer Hijazi, Raul Casas, Gerald E. Sobelman

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper presents a novel low-complexity, hard output multiple-input, multiple-output (MIMO) detection algorithm and architecture for LTE and WiFi applications. Our method provides a well-defined tradeoff between computational complexity and performance. The proposed algorithm does not require QR decomposition as a preprocessing step, as is commonly needed in sphere detection (SD). Simulation results for 3×3 and 4×4 MIMO configurations with both 16 and 64 QAM constellations show that the proposed algorithm uses a much smaller number of Euclidean distance (ED) calculations than other methods while having only a 0.5 dB loss compared to maximum likelihood detection. A 3×3 MIMO system with a 16 QAM detector architecture is also described, and the associated latency and hardware costs are given.

Original language	English (US)
Title of host publication	Proceedings - 2015 IEEE 11th International Conference on ASIC, ASICON 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479984831
DOIs	https://doi.org/10.1109/ASICON.2015.7517003
State	Published - Jul 21 2016
Externally published	Yes
Event	11th IEEE International Conference on Advanced Semiconductor Integrated Circuits (ASIC), ASICON 2015 - Chengdu, China Duration: Nov 3 2015 → Nov 6 2015

Other

Other	11th IEEE International Conference on Advanced Semiconductor Integrated Circuits (ASIC), ASICON 2015
Country/Territory	China
City	Chengdu
Period	11/3/15 → 11/6/15

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A low complexity algorithm and architecture for MIMO detection without QR decomposition. / Huai, Lian; Hijazi, Samer; Casas, Raul et al.
Proceedings - 2015 IEEE 11th International Conference on ASIC, ASICON 2015. Institute of Electrical and Electronics Engineers Inc., 2016. 7517003.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Huai, L, Hijazi, S, Casas, R & Sobelman, GE 2016, A low complexity algorithm and architecture for MIMO detection without QR decomposition. in Proceedings - 2015 IEEE 11th International Conference on ASIC, ASICON 2015., 7517003, Institute of Electrical and Electronics Engineers Inc., 11th IEEE International Conference on Advanced Semiconductor Integrated Circuits (ASIC), ASICON 2015, Chengdu, China, 11/3/15. https://doi.org/10.1109/ASICON.2015.7517003

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A low complexity algorithm and architecture for MIMO detection without QR decomposition

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