Andreas Burg
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View article: Belief Propagation Decoding for Short Codes on Structured Sparse Parity-Check Matrices
Belief Propagation Decoding for Short Codes on Structured Sparse Parity-Check Matrices Open
As successfully adopted in standard long code scenarios, belief propagation (BP) decoding has been considered a promising universal decoding candidate for next-generation wireless communications. However, when applied to short codes, BP de…
View article: Toward Universal Belief Propagation Decoding for Short Binary Block Codes
Toward Universal Belief Propagation Decoding for Short Binary Block Codes Open
Belief propagation (BP) decoding has been recognized for its capacity-approaching performance and high throughput when decoding long low-density parity-check (LDPC) codes. However, the application of BP decoding for short codes is hindered…
View article: LoRa Fine Synchronization with Two-Pass Time and Frequency Offset Estimation
LoRa Fine Synchronization with Two-Pass Time and Frequency Offset Estimation Open
LoRa is currently one of the most widely used low-power wide-area network (LPWAN) technologies. The physical layer leverages a chirp spread spectrum modulation to achieve long-range communication with low power consumption. Synchronization…
View article: Device-Free Floor-Scale Human Detection With Indoor LTE Antennas
Device-Free Floor-Scale Human Detection With Indoor LTE Antennas Open
This paper introduces a novel method for device-free human detection by leveraging existing wireless communication signals from 4G-long-term evolution (4G-LTE) systems. By utilizing the pervasive 4G-LTE signals, our approach enhances the e…
View article: An SDR-Based Monostatic Wi-Fi System with Analog Self-Interference Cancellation for Sensing
An SDR-Based Monostatic Wi-Fi System with Analog Self-Interference Cancellation for Sensing Open
Wireless sensing offers an alternative to wearables for contactless monitoring of human activity and vital signs. However, most existing systems use bistatic setups, which suffer from phase imperfections due to unsynchronized clocks. Monos…
View article: Towards 6G: Configurable High-Throughput Decoder Implementation for SC-LDPC Codes
Towards 6G: Configurable High-Throughput Decoder Implementation for SC-LDPC Codes Open
Spatially-coupled low-density parity-check (SC-LDPC) codes are considered an important candidate for the upcoming 6G standardization, owing to their superior error-correction capability and practical decoding complexity. However, current h…
View article: LoRa Fine Synchronization with Two-Pass Time and Frequency Offset Estimation
LoRa Fine Synchronization with Two-Pass Time and Frequency Offset Estimation Open
LoRa is currently one of the most widely used low-power wide-area network (LPWAN) technologies. The physical layer leverages a chirp spread spectrum modulation to achieve long-range communication with low power consumption. Synchronization…
View article: Edge-Spreading Raptor-Like LDPC Codes for 6G Wireless Systems
Edge-Spreading Raptor-Like LDPC Codes for 6G Wireless Systems Open
Next-generation channel coding has stringent demands on throughput, energy consumption, and error rate performance while maintaining key features of 5G New Radio (NR) standard codes such as rate compatibility, which is a significant challe…
View article: Lupulus: A Flexible Hardware Accelerator For Neural Networks
Lupulus: A Flexible Hardware Accelerator For Neural Networks Open
Neural networks have become indispensable for a wide range of applications, but they suffer from high computational- and memory-requirements, requiring optimizations from the algorithmic description of the network to the hardware implement…
View article: Learning-based Hand Gesture Classification using Channel Impulse Response with UWB
Learning-based Hand Gesture Classification using Channel Impulse Response with UWB Open
The channel impulse response (CIR) of the wireless propagation channel is influenced by the surrounding environment and thus can be used to retrieve environmental information such as location, the presence of objects, and the speed of obje…
View article: A Node-Based Polar List Decoder With Frame Interleaving and Ensemble Decoding Support
A Node-Based Polar List Decoder With Frame Interleaving and Ensemble Decoding Support Open
Node-based successive cancellation list (SCL) decoding has received considerable attention in wireless communications for its significant reduction in decoding latency, particularly with 5G New Radio (NR) polar codes. However, the existing…
View article: A Node-Based Polar List Decoder with Frame Interleaving and Ensemble Decoding Support
A Node-Based Polar List Decoder with Frame Interleaving and Ensemble Decoding Support Open
Node-based successive cancellation list (SCL) decoding has received considerable attention in wireless communications for its significant reduction in decoding latency, particularly with 5G New Radio (NR) polar codes. However, the existing…
View article: Design of Concatenated Product Codes with Spatially-Coupled LDPC Codes
Design of Concatenated Product Codes with Spatially-Coupled LDPC Codes Open
In this paper, we introduce a novel coding scheme that concatenates product codes with spatially-coupled low-density parity-check (SC-LDPC) codes, termed PC-SC-LDPC codes, for next-generation wireless (and wireline) communications. These c…
View article: A Low-Latency and High-Performance SCL Decoder with Frame-Interleaving
A Low-Latency and High-Performance SCL Decoder with Frame-Interleaving Open
In this paper, we describe a frame-interleaving hardware architecture for a generalized node-based successive cancellation list (SCL) decoder. By efficiently reusing otherwise idle computational units, two independent frames can be decoded…
View article: Monostatic Multi-Target Wi-Fi-Based Breathing Rate Sensing Using Openwifi
Monostatic Multi-Target Wi-Fi-Based Breathing Rate Sensing Using Openwifi Open
Continuous monitoring of human activity and vital signs has become increasingly important in healthcare and consumer applications. While wearables and others sensors are already in widespread use, they often suffer from issues such as disc…
View article: A Generalized Adjusted Min-Sum Decoder for 5G LDPC Codes: Algorithm and Implementation
A Generalized Adjusted Min-Sum Decoder for 5G LDPC Codes: Algorithm and Implementation Open
5G New Radio (NR) has stringent demands on both performance and complexity for the design of low-density parity-check (LDPC) decoding algorithms and corresponding VLSI implementations. Furthermore, decoders must fully support the wide rang…
View article: High-Throughput and Flexible Belief Propagation List Decoder for Polar Codes
High-Throughput and Flexible Belief Propagation List Decoder for Polar Codes Open
Due to its high parallelism, belief propagation (BP)decoding is amenable to high-throughput applications and thusrepresents a promising solution for the ultra-high peak datarate required by future communication systems. To bridge theperfor…
View article: A High Dynamic Range Envelop Detector for Heterodyne Receiver Architecture
A High Dynamic Range Envelop Detector for Heterodyne Receiver Architecture Open
Energy detection (ED) has been of interest for various applications ranging from very low frequency biomedical signal read-out to high frequency wireless communication. The analog implementation of the ED requires circuits with a non-linea…
View article: Low Power LDPC Decoding by Reliable Voltage Down-Scaling
Low Power LDPC Decoding by Reliable Voltage Down-Scaling Open
Low-Density Parity-Check (LDPC) decoder is among the power hungry building blocks of wireless communication systems. Voltage scaling down to Near-Threshold (NT) voltages substantially improves energy efficiency, in theory up 10x. However, …
View article: A Generalized Adjusted Min-Sum Decoder for 5G LDPC Codes: Algorithm and Implementation
A Generalized Adjusted Min-Sum Decoder for 5G LDPC Codes: Algorithm and Implementation Open
5G New Radio (NR) has stringent demands on both performance and complexity for the design of low-density parity-check (LDPC) decoding algorithms and corresponding VLSI implementations. Furthermore, decoders must fully support the wide rang…
View article: An Ultra-Low-Power Widely-Tunable Complex Band-Pass Filter for RF Spectrum Sensing
An Ultra-Low-Power Widely-Tunable Complex Band-Pass Filter for RF Spectrum Sensing Open
Power consumption is of utmost importance in portable devices as they are operated from a limited energy supply. Wireless radio is one of the most power-hungry blocks in these systems and needs to be activated opportunistically. Radio freq…
View article: Spreading Factor assisted LoRa Localization with Deep Reinforcement Learning
Spreading Factor assisted LoRa Localization with Deep Reinforcement Learning Open
Most of the developed localization solutions rely on RSSI fingerprinting. However, in the LoRa networks, due to the spreading factor (SF) in the network setting, traditional fingerprinting may lack representativeness of the radio map, lead…
View article: Band-of-Interest-Based Channel Impulse Response Fusion for Breathing Rate Estimation with UWB
Band-of-Interest-Based Channel Impulse Response Fusion for Breathing Rate Estimation with UWB Open
The channel impulse response (CIR) obtained from the channel estimation step of various wireless systems is a widely used source of information in wireless sensing. Breathing rate is one of the important vital signs that can be retrieved f…
View article: Band-of-Interest-based Channel Impulse Response Fusion for Breathing Rate Estimation with UWB
Band-of-Interest-based Channel Impulse Response Fusion for Breathing Rate Estimation with UWB Open
The channel impulse response (CIR) obtained from the channel estimation step of various wireless systems is a widely used source of information in wireless sensing. Breathing rate is one of the important vital signs that can be retrieved f…
View article: A 128-kbit GC-eDRAM With Negative Boosted Bootstrap Driver for 11.3× Lower-Refresh Frequency at a 2.5% Area Overhead in 28-nm FD-SOI
A 128-kbit GC-eDRAM With Negative Boosted Bootstrap Driver for 11.3× Lower-Refresh Frequency at a 2.5% Area Overhead in 28-nm FD-SOI Open
Gain-cell embedded DRAM (GC-eDRAM) is a high-density logic-compatible alternative to conventional static random-access memory (SRAM) and embedded DRAM (eDRAM). However, GC-eDRAM suffers from a reduced data retention time (DRT) at deeply-sc…
View article: Single-anchor UWB Localization using Channel Impulse Response Distributions
Single-anchor UWB Localization using Channel Impulse Response Distributions Open
Ultra-wideband (UWB) devices are widely used in indoor localization scenarios. Single-anchor UWB localization shows advantages because of its simple system setup compared to conventional two-way ranging (TWR) and trilateration localization…
View article: List Ordered Statistics Decoders for Polar Codes
List Ordered Statistics Decoders for Polar Codes Open
The de-facto standard decoding algorithm for polar codes, successive cancellation list (SCL) decoding, is a breadth-first search algorithm. By keeping a list of candidate codewords, SCL decoding improves the performance as the list size L …
View article: High-Throughput Flexible Belief Propagation List Decoder for Polar Codes
High-Throughput Flexible Belief Propagation List Decoder for Polar Codes Open
Owing to its high parallelism, belief propagation (BP) decoding is highly amenable to high-throughput implementations and thus represents a promising solution for meeting the ultra-high peak data rate of future communication systems. Howev…
View article: A Maximum-Likelihood-Based Two-User Receiver for LoRa Chirp Spread-Spectrum Modulation
A Maximum-Likelihood-Based Two-User Receiver for LoRa Chirp Spread-Spectrum Modulation Open
Long Range (LoRa) is an emerging low-power wide-area network technology offering long-range wireless connectivity to Internet of Things (IoT) devices. For energy efficiency reasons, LoRa end nodes implement a nonslotted ALOHA multiple acce…
View article: Beam Selection and Tracking for Amplify-and-Forward Repeaters
Beam Selection and Tracking for Amplify-and-Forward Repeaters Open
Mobile network operators constantly have to upgrade their cellular network to satisfy the public's hunger for increasing data capacity. However, regulatory limits regarding allowed electromagnetic field strength on existing cell sites ofte…