296 citations · 651 across the 35 of their papers we have counts for
38 papers
High-Rate Spatially Coupled LDPC Codes Based on Massey's Convolutional Self-Orthogonal Codes
Daniel J. Costello, Min Zhu, David G. M. Mitchell +1
In this paper, we study a new class of high-rate spatially coupled LDPC (SC-LDPC) codes based on the convolutional self-orthogonal codes (CSOCs) first introduced by Massey. The SC-…
LDPC Codes for Quantitative Group Testing with a Non-Binary Alphabet
Mgeni Makambi Mashauri, Alexandre Graell i Amat, Michael Lentmaier
We propose and analyze a novel scheme based on LDPC codes for quantitative group testing. The key underlying idea is to augment the bipartite graph by introducing hidden non-binary…
Low-Density Parity-Check Codes and Spatial Coupling for Quantitative Group Testing
Mgeni Makambi Mashauri, Alexandre Graell i Amat, Michael Lentmaier
A non-adaptive quantitative group testing (GT) scheme based on sparse codes-on-graphs in combination with low-complexity peeling decoding was introduced and analyzed by Karimi et a…
Robust Performance Over Changing Intersymbol Interference Channels by Spatial Coupling
Mgeni Makambi Mashauri, Alexandre Graell i Amat, Michael Lentmaier
We show that spatially coupled low-density parity-check (LDPC) codes yield robust performance over changing intersymbol interfere (ISI) channels with optimal and suboptimal detecto…
On the Universality of Spatially Coupled LDPC Codes Over Intersymbol Interference Channels
Mgeni Makambi Mashauri, Alexandre Graell i Amat, Michael Lentmaier
In this paper, we derive the exact input/output transfer functions of the optimal a-posteriori probability channel detector for a general ISI channel with erasures. Considering thr…
Angle estimation using mmWave RSS measurements with enhanced multipath information
Neharika Valecha, Jesus Omar Lacruz, Michael Lentmaier +2
mmWave communication has come up as the unexplored spectrum for 5G services. With new standards for 5G NR positioning, more off-the-shelf platforms and algorithms are needed to per…
Improving the Thresholds of Generalized LDPC Codes with Convolutional Code Constraints
Muhammad Umar Farooq, Michael Lentmaier, Alexandre Graell i Amat
CC-GLPDC codes are a class of generalized low-density parity-check (GLDPC) codes where the constraint nodes (CNs) represent convolutional codes. This allows for efficient decoding…
A Review of Indoor Millimeter Wave Device-based Localization and Device-free Sensing Technologies and Applications
Anish Shastri, Neharika Valecha, Enver Bashirov +5
The commercial availability of low-cost millimeter wave (mmWave) communication and radar devices is starting to improve the penetration of such technologies in consumer markets, pa…
Revisiting the Concrete Security of Goldreich's Pseudorandom Generator
Jing Yang, Qian Guo, Thomas Johansson +1
Local pseudorandom generators are a class of fundamental cryptographic primitives having very broad applications in theoretical cryptography. Following Couteau et al.'s work in ASI…
Successive Cancellation Decoding of Single Parity-Check Product Codes: Analysis and Improved Decoding
Mustafa Cemil Coşkun, Gianluigi Liva, Alexandre Graell i Amat +2
A product code with single parity-check component codes can be described via the tools of a multi-kernel polar code, where the rows of the generator matrix are chosen according to…
The Effect of Coupling Memory and Block Length on Spatially Coupled Serially Concatenated Codes
Mojtaba Mahdavi, Muhammad Umar Farooq, Liang Liu +3
Spatially coupled serially concatenated codes (SC-SCCs) are a class of spatially coupled turbo-like codes, which have a close-to-capacity performance and low error floor. In this p…
Error Propagation Mitigation in Sliding Window Decoding of Braided Convolutional Codes
Min Zhu, David G. M. Mitchell, Michael Lentmaier +2
We investigate error propagation in sliding window decoding of braided convolutional codes (BCCs). Previous studies of BCCs have focused on iterative decoding thresholds, minimum d…
Decoder Error Propagation Mitigation for Spatially Coupled LDPC Codes
Min Zhu, David G. M. Mitchell, Michael Lentmaier +1
In this paper, we introduce two new methods of mitigating decoder error propagation for low-latency sliding window decoding (SWD) of spatially coupled low density parity check (SC-…
Generalized LDPC Codes with Convolutional Code Constraints
Muhammad Umar Farooq, Saeedeh Moloudi, Michael Lentmaier
Braided convolutional codes (BCCs) are a class of spatially coupled turbo-like codes that can be described by a -regular compact graph. In this paper, we introduce a family…
Spatially Coupled Generalized LDPC Codes: Asymptotic Analysis and Finite Length Scaling
David G. M. Mitchell, Pablo M. Olmos, Michael Lentmaier +1
Generalized low-density parity-check (GLDPC) codes are a class of LDPC codes in which the standard single parity check (SPC) constraints are replaced by constraints defined by a li…
Spatially coupled turbo-like codes: a new trade-off between waterfall and error floor
Saeedeh Moloudi, Michael Lentmaier, Alexandre Graell i Amat
Spatially coupled turbo-like codes (SC-TCs) have been shown to have excellent decoding thresholds due to the threshold saturation effect. Furthermore, even for moderate block lengt…
Thresholds of Braided Convolutional Codes on the AWGN Channel
Muhammad Umar Farooq, Saeedeh Moloudi, Michael Lentmaier
In this paper, we perform a threshold analysis of braided convolutional codes (BCCs) on the additive white Gaussian noise (AWGN) channel. The decoding thresholds are estimated by M…
Combating Error Propagation in Window Decoding of Braided Convolutional Codes
Min Zhu, David G. M. Mitchell, Michael Lentmaier +2
In this paper, we study sliding window decoding of braided convolutional codes (BCCs) in the context of a streaming application, where decoder error propagation can be a serious pr…
Successive Cancellation Decoding of Single Parity-Check Product Codes
Mustafa Cemil Coşkun, Gianluigi Liva, Alexandre Graell i Amat +1
We introduce successive cancellation (SC) decoding of product codes (PCs) with single parity-check (SPC) component codes. Recursive formulas are derived, which resemble the SC deco…
A Unified Ensemble of Concatenated Convolutional Codes
Saeedeh Moloudi, Michael Lentmaier, Alexandre Graell i Amat
We introduce a unified ensemble for turbo-like codes (TCs) that contains the four main classes of TCs: parallel concatenated codes, serially concatenated codes, hybrid concatenated…
Finite Length Weight Enumerator Analysis of Braided Convolutional Codes
Saeedeh Moloudi, Michael Lentmaier, Alexandre Graell i Amat
Braided convolutional codes (BCCs) are a class of spatially coupled turbo-like codes (SC-TCs) with excellent belief propagation (BP) thresholds. In this paper, we analyze the perfo…
Spatially Coupled Turbo-Like Codes
Saeedeh Moloudi, Michael Lentmaier, Alexandre Graell i Amat
In this paper, we introduce the concept of spatially coupled turbo-like codes (SC-TCs) as the spatial coupling of a number of turbo-like code ensembles. In particular, we consider…
Threshold Saturation for Spatially Coupled Turbo-like Codes over the Binary Erasure Channel
Saeedeh Moloudi, Michael Lentmaier, Alexandre Graell i Amat
In this paper we prove threshold saturation for spatially coupled turbo codes (SC-TCs) and braided convolutional codes (BCCs) over the binary erasure channel. We introduce a compac…
Challenges and some new directions in channel coding
Erdal Arikan, Najeeb ul Hassan, Michael Lentmaier +2
Three areas of ongoing research in channel coding are surveyed, and recent developments are presented in each area: spatially coupled Low-Density Parity-Check (LDPC) codes, non-bin…