Filters








26 Hits in 3.7 sec

Multicore implementation of LDPC decoders based on ADMM algorithm

Imen Debbabi, Nadia Khouja, Fethi Tlili, Bertrand Le Gal, Christophe Jego
2016 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
Amount of computations involved in VN/CN processing for different LDPC decoding algorithms ble 1 Comparison of the theorical complexity of the CN and VN computation kernels.  ...  From a decoding point of view CN processing consume more than 80% of the execution time Amount of computations involved in VN/CN processing for different LDPC decoding algorithms ble 1 Comparison of the  ...  The parallelism levels available for SPMD parallelization ๏ INTEL Core-i7 has many physical cores having each a SIMD unit, ๏ Switching to many-core devices ?  ... 
doi:10.1109/icassp.2016.7471820 dblp:conf/icassp/DebbabiKTGJ16 fatcat:ntmo7fs6qjek5ay7lrhgfuf5yq

Efficient QP-ADMM Decoder for Binary LDPC Codes and Its Performance Analysis [article]

Jing Bai, Yongchao Wang, Qingjiang Shi
2019 arXiv   pre-print
This paper presents an efficient quadratic programming (QP) decoder via the alternating direction method of multipliers (ADMM) technique, called QP-ADMM, for binary low-density parity-check (LDPC) codes  ...  Then, we develop an ADMM solving algorithm for the formulated non-convex QP decoding model.  ...  Performance comparison of the proposed QP-ADMM decoder In this subsection, we present simulation results for six binary LDPC codes.  ... 
arXiv:1910.12712v1 fatcat:y3o4q2ff3jflndsbpq3a2akoti

Hardware-Based Linear Program Decoding with the Alternating Direction Method of Multipliers [article]

Mitchell Wasson, Mario Milicevic, Stark C. Draper, Glenn Gulak
2016 arXiv   pre-print
Furthermore, we present results for a fixed-point Verilog implementation of ADMM-LP decoding.  ...  It has been recently shown that the Alternating Direction Method of Multipliers (ADMM) can be applied to decompose the LP decoding problem.  ...  Table III compares our implementation for the QC-LDPC ensemble with several FPGA-based LDPC decoders having similar code rates and comparable block length.  ... 
arXiv:1611.05975v1 fatcat:bl6bbnsan5fv7i5obx3ro7vnii

Hardware-Based Linear Program Decoding with the Alternating Direction Method of Multipliers

Mitchell Wasson, Mario Milicevic, Stark Draper, Patrick G. Gulak
2019 IEEE Transactions on Signal Processing  
This thesis is concerned with the hardware implementation of Linear Program (LP) decoding for Low-Density Parity-Check (LDPC) codes.  ...  This work expands upon the ADMM decomposition of LP decoding, and a hardware-based LP decoder is implemented.  ...  The schedule is based on the factor-graph representation of the LDPC code in question.  ... 
doi:10.1109/tsp.2019.2929944 fatcat:h7yprh5yd5fshhthnsslmckrc4

Redefining Wireless Communication for 6G: Signal Processing Meets Deep Learning with Deep Unfolding [article]

Anu Jagannath, Jithin Jagannath, Tommaso Melodia
2021 arXiv   pre-print
The recent emergence of machine learning approaches for enhancing wireless communications and empowering them with much-desired intelligence holds immense potential for redefining wireless communication  ...  We outline the deficiencies of the traditional algorithmic principles and data-hungry deep learning (DL) approaches in the context of 6G networks.  ...  The heterogeneity, high-frequency operation, mobility, and dense operation will introduce a different dimension of propagation, spectrum access, radio resource allocation, scheduling, and security concerns  ... 
arXiv:2004.10715v5 fatcat:bsouaizz25eujhsg67ka52pch4

FEC Code Anchored Robust Design of Massive MIMO Receivers

Kun Wang, Zhi Ding
2016 IEEE Transactions on Wireless Communications  
In addition, we present a distributed multi-cell processing scheme for enhanced performance via alternating direction method of multipliers (ADMM).  ...  The effectiveness of CARD receivers is demonstrated by numerical results that establish substantial performance gain of the proposed receivers over existing robust designs.  ...  ACKNOWLEDGMENT The authors thank the anonymous reviewers for suggestions and comments that substantially improve the manuscript's quality.  ... 
doi:10.1109/twc.2016.2613516 fatcat:74jgfryfq5czbioh4dutbx2hhy

A Reduced-Complexity Projection Algorithm for ADMM-based LP Decoding [article]

Florian Gensheimer, Tobias Dietz, Kira Kraft, Stefan Ruzika, Norbert Wehn
2019 arXiv   pre-print
The Alternating Direction Method of Multipliers has recently been adapted for Linear Programming Decoding of Low-Density Parity-Check codes.  ...  The computation of the projection onto the parity polytope is the core of this algorithm and usually involves a sorting operation, which is the main effort of the projection.  ...  ACKNOWLEDGEMENT We gratefully acknowledge financial support by the DFG (project-ID: WE 2442/9-3 and RU 1524/2-3).  ... 
arXiv:1901.03240v1 fatcat:esxvyv3bbbacvgpkdnit2le66e

Decoding Reed-Muller Codes Using Minimum- Weight Parity Checks

Elia Santi, Christian Hager, Henry D. Pfister
2018 2018 IEEE International Symposium on Information Theory (ISIT)  
and BP decoding for the binary symmetric channel.  ...  As examples, we consider the peeling decoder for the binary erasure channel, linear-programming and belief propagation (BP) decoding for the binary-input additive white Gaussian noise channel, and bit-flipping  ...  The performance is shown for three different values for the parameter f .  ... 
doi:10.1109/isit.2018.8437637 dblp:conf/isit/SantiHP18 fatcat:4kvseoxu6jhfxls7ud53vq5hzm

Decoding Reed-Muller Codes Using Minimum-Weight Parity Checks [article]

Elia Santi, Christian Häger, Henry D. Pfister
2018 arXiv   pre-print
and BP decoding for the binary symmetric channel.  ...  As examples, we consider the peeling decoder for the binary erasure channel, linear-programming and belief propagation (BP) decoding for the binary-input additive white Gaussian noise channel, and bit-flipping  ...  The performance is shown for three different values for the parameter f .  ... 
arXiv:1804.10319v1 fatcat:dx6o3qq4kbbubiyqibnfxlunp4

Implementation of Fog computing for reliable E-health applications

Razvan Craciunescu, Albena Mihovska, Mihail Mihaylov, Sofoklis Kyriazakos, Ramjee Prasad, Simona Halunga
2015 2015 49th Asilomar Conference on Signals, Systems and Computers  
We will mathematically analyze the system accordingly and provide expressions for the capture probabilities of the underlying sparse multiuser detector.  ...  Specifically, we introduce a concept for sparse joint activity, channel and data detection in the context of the Coded ALOHA (FDMA) protocol.  ...  (LDPC) decoders.  ... 
doi:10.1109/acssc.2015.7421170 dblp:conf/acssc/CraciunescuMMKP15 fatcat:qm6mki5z6bcvrfimkmqjyrxaxm

Welcome Messages

2019 2019 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)  
The developed H-BTC database comprises of 30K images comprising of the five types of H-BTC images in which three categories are constructed based on digital halftoning and two types are based on digital  ...  This paper proposes a novel power allocation scheme for MU-MIMO systems, which minimizes the variance of channel capacities of each spatial stream of all users to achieve user fairness in terms of video  ...  G polar T inner H T ldpc = 0 (1) In order to decode the received sequence using BP decoding of LDPC code, the condition of (1) must be satisfied. Consider the polar code of R = 1/2.  ... 
doi:10.1109/ispacs48206.2019.8986291 fatcat:gu4zaxsqkncp5n2ebj5fybk7ce

A Systematic Review on NOMA Variants for 5G and Beyond

Ishan Budhiraja, Neeraj Kumar, Sudhanshu Tyagi, Sudeep Tanwar, Zhu Han, Doug Young Suh, MD. Jalil Piran
2021 IEEE Access  
In [283] , by assuming the perfect SIC decoding order, an effective second-order cone programming (SOCP)alternating direction method of multipliers (ADMM) based algorithm was proposed for the MISO IRS-NOMA  ...  is based on low density parity-check (LDPC) codes [355] , [356] .  ... 
doi:10.1109/access.2021.3081601 fatcat:mzmmr3km5zehhh3fnupyelfo3e

Ping-pong beam training for reciprocal channels with delay spread

Elisabeth de Carvalho, Jorgen Bach Andersen
2015 2015 49th Asilomar Conference on Signals, Systems and Computers  
a comparison of Type I versus Type II approaches.  ...  The idea is based on estimating the norm of available samples at nodes.  ...  LDPC) decoders.  ... 
doi:10.1109/acssc.2015.7421451 dblp:conf/acssc/CarvalhoA15 fatcat:mqokuvnh3zg45licnfbgxyvxfu

Rate-Splitting Multiple Access: Fundamentals, Survey, and Future Research Trends [article]

Yijie Mao, Onur Dizdar, Bruno Clerckx, Robert Schober, Petar Popovski, H. Vincent Poor
2022 arXiv   pre-print
Rate-splitting multiple access (RSMA) has emerged as a novel, general, and powerful framework for the design and optimization of non-orthogonal transmission, multiple access (MA), and interference management  ...  Compared to the conventional MA strategies used in 5G, RSMA enables spectral efficiency (SE), energy efficiency (EE), coverage, user fairness, reliability, and quality of service (QoS) enhancements for  ...  For a certain decoding order, the number of SIC layers used at different users for decoding the data streams of other users is different.  ... 
arXiv:2201.03192v1 fatcat:e6vlcpge3jdexcqp7e6ctz4xjq

2020 Index IEEE Transactions on Signal Processing Vol. 68

2020 IEEE Transactions on Signal Processing  
., One-Step Prediction for Discrete Time-Varying Nonlinear Systems With Unknown Inputs and Correlated Noises; TSP  ...  ., +, TSP 2020 2186-2198 Efficient QP-ADMM Decoder for Binary LDPC Codes and Its Performance Analysis.  ...  ., +, TSP 2020 4700-4712 Efficient QP-ADMM Decoder for Binary LDPC Codes and Its Performance Analysis.  ... 
doi:10.1109/tsp.2021.3055469 fatcat:6uswtuxm5ba6zahdwh5atxhcsy
« Previous Showing results 1 — 15 out of 26 results