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Advanced QRD-M Detection with Iterative Scheme in the MIMO-OFDM System
2014
IEICE transactions on information and systems
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In this letter, advanced QRD-M detection using iterative scheme is proposed. This scheme has a higher diversity degree than conventional QRD-M detection. ...
According to the simulation results, the performance of proposed QRD-M detection is 0.5dB to 5.5dB better than the performance of conventional QRD-M detection and average iteration time is approximately ...
Conclusion In this letter, the advanced QRD-M detection with iterative scheme is proposed. The proposed scheme obtain more diversity degree than conventional scheme. ...
doi:10.1587/transinf.e97.d.340
fatcat:ajehlc5lybd4ba5fdhnbdblhdq
QRD-QLD Searching Based Sphere Detection for Emerging MIMO Downlink OFDM Receivers
2008
IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference
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Proposed QRD-QLD detection algorithm is compared with well-known QRD-M scheme adopted for several emerging wireless standards. ...
1 Abstract-In this paper, a detection algorithm with parallel partial candidate-search algorithm is presented. ...
MIMO-OFDM DOWNLINK SYSTEM AND SPHERE DETECTION A coded MIMO downlink system based on Orthogonal Frequency Division Multiplexing (OFDM) transmission with soft inner detection and outer channel decoding ...
doi:10.1109/glocom.2008.ecp.808
dblp:conf/globecom/RadosavljevicKC08
fatcat:itgcqkiarfhb5g2pi54hq5nsnm
Implementation of a reduced-lattice MIMO detector for OFDM Systems
2009
2009 Design, Automation & Test in Europe Conference & Exhibition
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This paper presents a novel VLSI implementation of a MIMO detector for OFDM systems. ...
In order to facilitate real-time detection in reduced lattice mode of operation, a novel fixed-complexity version of the LLL lattice reduction algorithm has been developed, allowing for strict practical ...
ACKNOWLEDGMENT The authors would like to acknowledge the fruitful discussions with their colleagues at Toshiba Research Europe Ltd. and the support of its directors. ...
doi:10.1109/date.2009.5090924
dblp:conf/date/GarridoVSML09
fatcat:tx42q2xrtjfefjcrseqhbqoixi
Parallel Searching-Based Sphere Detector for MIMO Downlink OFDM Systems
2012
IEEE Transactions on Signal Processing
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It is shown that in coded MIMO orthogonal frequency division multiplexing (MIMO OFDM) systems, the detection latency and computational complexity of a receiver can be substantially reduced by using the ...
the original QRD-M detector for similar error-rate performance in wireless communications systems employing four transmit and four receive antennas with 16-QAM or 64-QAM constellation size. ...
MIMO-OFDM DOWNLINK SYSTEM AND SPHERE DETECTION A coded MIMO downlink system based on orthogonal frequency division multiplexing (OFDM) with subcarriers is considered in this work. ...
doi:10.1109/tsp.2012.2190595
fatcat:llevh7j5jjacngqnivwiqr3pe4
Energy Efficient Group-Sort QRD Processor With On-Line Update for MIMO Channel Pre-Processing
2015
IEEE Transactions on Circuits and Systems Part 1: Regular Papers
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that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study ...
or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ...
The adopted instruction set is tailored for baseband processing in MIMO-OFDM systems with special focus on the efficient computation of the operations listed in Table IV . ...
doi:10.1109/tcsi.2015.2402936
fatcat:6vvfouh2g5f5rmou735uy46nfy
Parallel QR decomposition in LTE-A systems
[article]
2010
arXiv
pre-print
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2010
2010 IEEE 11th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
unpublished
doi:10.1109/spawc.2010.5671007 fatcat:f4nm6sek2nevjdscpyynetfieu
doi:10.1109/spawc.2010.5671007 fatcat:f4nm6sek2nevjdscpyynetfieu
The QR Decomposition (QRD) of communication channel matrices is a fundamental prerequisite to several detection schemes in Multiple-Input Multiple-Output (MIMO) communication systems. ...
Herein, the main feature of the QRD is to transform the non-causal system into a causal system, where consequently efficient detection algorithms based on the Successive Interference Cancellation (SIC) ...
QR Decomposition (QRD)-based Successive Interference Cancellation (SIC) schemes [3] , Sphere Decoder (SD) [4] and QRD with Malgorithm (QRD-M) [5] detection algorithms use the QRD to transfer the MIMO ...
arXiv:1005.4895v1
fatcat:73une3ba2zgwhgtvlt2xvqlqra
Large Multiuser MIMO Detection: Algorithms and Architectures
[article]
2021
arXiv
pre-print
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2018 pre-print arXiv:1805.11514v1 fatcat:eferivku25f77gd2p5gckalhk4
In this thesis, we investigate the problem of efficient data detection in large MIMO and high order MU-MIMO systems. ...
Finally, we map the studied search-based detection schemes to low-resolution precoding at the transmitter side in massive MIMO and report the performance-complexity tradeoffs. ...
The proposed schemes are
studied in the context of non-iterative and iterative detection and decoding, and
significant gains are achieved in both cases. ...
arXiv:1805.11514v2
fatcat:tjjwm6eaynf3ldwttx24y7wtbq
From Linear Equalization to Lattice-Reduction-Aided Sphere-Detector as an Answer to the MIMO Detection Problematic in Spatial Multiplexing Systems
[chapter]
2011
Vehicular Technologies: Increasing Connectivity
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To fix the complexity of the detection stage and allow a parallel processing, the QRD with M-algorithm (QRD-M) has been proposed. ...
the hardware requirements by iteratively processing the QRD-M algorithm. ...
doi:10.5772/15565
fatcat:5e7umbp6sjc5hixn2zslfng6sq
Multiuser MIMO-OFDM for Next-Generation Wireless Systems
2007
Proceedings of the IEEE
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The amelioration of powerful multicarrier OFDM arrangements with multiple-input multiple-output (MIMO) systems has numerous benefits, which are detailed in this treatise. ...
We continue by highlighting the limitations of conventional detection and channel estimation techniques designed for multiuser MIMO OFDM systems in the so-called rank-deficient scenarios, where the number ...
detector of [146] , the LS/MMSE algorithms of [1] , [268] and the QR Decomposition combined with the M-algorithm (QRD-M) algorithm of [184] . ...
doi:10.1109/jproc.2007.898869
fatcat:mzfhdw6hyzbvrgraoly4mdpapq
On Reduced Complexity Soft-Output MIMO ML detection
[article]
2006
arXiv
pre-print
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The current state of the art in MIMO detection is list decoding and lattice decoding. ...
In multiple-input multiple-output (MIMO) fading channels maximum likelihood (ML) detection is desirable to achieve high performance, but its complexity grows exponentially with the spectral efficiency. ...
ACKNOWLEDGMENT The authors wish to thank E. Gallizio, D. Gatti, M. Odoni, A. Poloni, F. Spalla, A. Tomasoni, and S. Valle, for their fundamental role in the 802.11n system development. ...
arXiv:cs/0603096v1
fatcat:lwbpcoishzaezjt6hye5tl2m5m
A Low-Latency Low-Power QR-Decomposition ASIC Implementation in 0.13 $\mu{\rm m}$ CMOS
2013
IEEE Transactions on Circuits and Systems Part 1: Regular Papers
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Test results for the 0.3 QRD chip, fabricated in 0.13 1P8M CMOS technology, demonstrate that the proposed design for 4 4 complex matrices attains the lowest reported processing latency of 40 clock cycles ...
His main research interests include algorithm optimization and VLSI implementation of MIMO pre-processing and detection algorithms and ASIC/FPGA implementation of WiMAX/LTE compliant MIMO receiver baseband ...
Fig. 12 . 12 BER Performance of proposed QRD Scheme integrated with a K-Best MIMO detector with different Number of CORDIC Algorithm Iterations. ...
doi:10.1109/tcsi.2012.2215775
fatcat:ot543xnij5cu7pg3zlqgu4vllm
Parallel Distributed Arithmetic Based K-Best List Sphere Detection Algorithm for LTE Standard
2013
Procedia Engineering
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To meet the requirements of high data rate and low latency interactive services, Orthogonal Frequency Division Multiplexing (OFDM) in combination with MIMO is used. ...
From a bit error rate (BER) performance perspective, maximum likelihood (ML) detection is the preferred detection method for multiple input multiple output (MIMO) communication systems. ...
Acknowledgment The authors would like to thank TIFAC (Technology Information Forecasting and Assessment Council) and Thiagarajar college of Engineering, Madurai for supporting this research. ...
doi:10.1016/j.proeng.2013.09.084
fatcat:syosifg6ingnfaem4cchhidb2y
Rapid Industrial Prototyping and SoC Design of 3G/4G Wireless Systems Using an HLS Methodology
2006
EURASIP Journal on Embedded Systems
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In this paper, we present our industrial rapid prototyping experiences on 3G/4G wireless systems using advanced signal processing algorithms in MIMO-CDMA and MIMO-OFDM systems. ...
Core system design issues are studied and advanced receiver algorithms suitable for implementation are proposed for synchronization, MIMO equalization, and detection. ...
ACKNOWLEDGMENTS The authors would like to thank Dr. Behnaam Aazhang and Gang Xu for their support in this work. J. R. ...
doi:10.1155/es/2006/14952
fatcat:xz4vbqoaxvc4pgmmcsduqgujpy
Rapid Industrial Prototyping and SoC Design of 3G/4G Wireless Systems Using an HLS Methodology
2006
EURASIP Journal on Embedded Systems
Preserved Fulltext
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In this paper, we present our industrial rapid prototyping experiences on 3G/4G wireless systems using advanced signal processing algorithms in MIMO-CDMA and MIMO-OFDM systems. ...
Core system design issues are studied and advanced receiver algorithms suitable for implementation are proposed for synchronization, MIMO equalization, and detection. ...
ACKNOWLEDGMENTS The authors would like to thank Dr. Behnaam Aazhang and Gang Xu for their support in this work. J. R. ...
doi:10.1186/1687-3963-2006-014952
fatcat:qnhce2epuzdzthuouofqezgjha
VLSI Implementation of a High-Speed Iterative Sorted MMSE QR Decomposition
2007
2007 IEEE International Symposium on Circuits and Systems
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multiple-output (MIMO) systems. ...
The presented architecture performs MIMO channel preprocessing using Givens rotations in order to compute the minimum mean squared error QR decomposition. ...
advanced MIMO detection schemes. ...
doi:10.1109/iscas.2007.378495
dblp:conf/iscas/LuethiBHPFF07
fatcat:7t6hha7hi5dczahu7slqglbuqi
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