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Fountain codes like LT or Raptor codes, also known as rateless erasure codes, allow to encode a message as some number of packets, such that any large enough subset of these packets is sufficient to fully reconstruct the message. It…

信息论 · 计算机科学 2015-08-19 Jarek Duda

Volumetric videoconferencing enables immersive six Degrees of Freedom interactions by jointly transmitting visual appearance and 3D geometry. However, delivering volumetric video over today's networks remains challenging due to high…

网络与互联网体系结构 · 计算机科学 2026-05-01 Ankur Aditya , Diptyaroop Maji , Lingdong Wang , Bhavya Ramakrishna , Ramesh Sitaraman , Prashant Shenoy

LoRa technology, crucial for low-power wide-area networks, faces significant performance degradation at extremely low signal-to-noise ratios (SNRs). We present LoRaFlow, a novel approach using rectified flow to reconstruct high-quality LoRa…

信号处理 · 电气工程与系统科学 2025-01-03 Mohamed Osman , Tamer Nadeem

Fast, direct electron detectors have significantly improved the spatio-temporal resolution of electron microscopy movies. Preserving both spatial and temporal resolution in extended observations, however, requires storing prohibitively…

仪器与探测器 · 物理学 2020-09-29 Abhik Datta , Kian Fong Ng , Deepan Balakrishnan , Melissa Ding , Yvonne Ban , See Wee Chee , Jian Shi , N. Duane Loh

Motivated by the work of Uehara et al. [1], an improved method to recover DC coefficients from AC coefficients of DCT-transformed images is investigated in this work, which finds applications in cryptanalysis of selective multimedia…

多媒体 · 计算机科学 2015-03-13 Shujun Li , Junaid Jameel Ahmad , Dietmar Saupe , C. -C. Jay Kuo

We propose application-layer coding schemes to recover lost data in delay-sensitive uplink (sensor-to-gateway) communications in the Internet of Things. Built on an approach that combines retransmissions and forward erasure correction, the…

信息论 · 计算机科学 2022-07-26 Vatsalya Chaubey , Siddhartha S. Borkotoky

In real-time video communication, retransmitting lost packets over high-latency networks is not viable due to strict latency requirements. To counter packet losses without retransmission, two primary strategies are employed -- encoder-based…

Long-range low-power wireless communications, such as LoRa, are used in many IoT and environmental monitoring applications. They typically increase the communication range to several kilometers, at the cost of reducing the bitrate to a few…

网络与互联网体系结构 · 计算机科学 2018-04-03 Nancy El Rachkidy , Alexandre Guitton , Megumi Kaneko

Storage systems have a strong need for substantially improving their error correction capabilities, especially for long-term storage where the accumulating errors can exceed the decoding threshold of error-correcting codes (ECCs). In this…

信息论 · 计算机科学 2018-11-12 Pulakesh Upadhyaya , Anxiao , Jiang

LT codes are modern and efficient rateless forward error correction (FEC) codes with close to channel capacity performance. Nevertheless, in intermediate range where the number of received encoded symbols is less than the number of source…

信息论 · 计算机科学 2010-11-11 Ali Talari , Behzad Shahrasbi , Nazanin Rahnavard

This paper considers the use of successive interference cancellation (SIC) to decode superposed signals in Long Range (LoRa) networks. We build over a known stochastic geometry model for LoRa networks and include the effect of recovering…

信息论 · 计算机科学 2020-10-20 J. M. de Souza Sant'Ana , A. Hoeller , R. D. Souza , H. Alves , S. Montejo-Sánchez

In Multi-Radio Multi-Channel (MRMC) Wireless Mesh Networks (WMN), Partially Overlapped Channels (POC) has been used to increase the parallel transmission. But adjacent channel interference is very severe in MRMC environment; it decreases…

网络与互联网体系结构 · 计算机科学 2015-11-17 Sarasvathi V , Snehanshu Saha , N. Ch. S. N. Iyengar , Mahalaxmi Koti

Implicit Error Correction (IEC) is a near Video-on-Demand (nVoD) scheme that trades bandwidth utilization for initial playback delay to potentially support an infinite number of users. Additionally, it provides error protection without any…

多媒体 · 计算机科学 2025-01-15 Rafael Asorey-Cacheda , Antonio-Javier Garcia-Sanchez , Joan Garcia-Haro

We study the problem of efficiently computing on encoded data. More specifically, we study the question of low-bandwidth computation of functions $F:\mathbb{F}^k \to \mathbb{F}$ of some data $x \in \mathbb{F}^k$, given access to an encoding…

信息论 · 计算机科学 2022-01-27 Noah Shutty , Mary Wootters

The anticipated increase in the count of IoT devices in the coming years motivates the development of efficient algorithms that can help in their effective management while keeping the power consumption low. In this paper, we propose an…

网络与互联网体系结构 · 计算机科学 2021-11-02 Inaam Ilahi , Muhammad Usama , Muhammad Omer Farooq , Muhammad Umar Janjua , Junaid Qadir

LDPC (Low Density Parity Check) codes are among the most powerful and widely adopted modern error correcting codes. The iterative decoding algorithms required for these codes involve high computational complexity and high processing…

硬件体系结构 · 计算机科学 2011-05-16 Carlo Condo , Guido Masera

We present a method for estimating the undetected error rate when a cyclic redundancy check (CRC) is performed on the output of the decoder of short low-density parity-check (LDPC) codes. This system is of interest for telecommand links,…

信息论 · 计算机科学 2016-11-18 Marco Baldi , Nicola Maturo , Giacomo Ricciutelli , Franco Chiaraluce

The proliferation of misinformation necessitates robust yet computationally efficient fact verification systems. While current state-of-the-art approaches leverage Large Language Models (LLMs) for generating explanatory rationales, these…

计算与语言 · 计算机科学 2025-11-10 Alamgir Munir Qazi , John P. McCrae , Jamal Abdul Nasir

Well-known error detection and correction solutions in wireless communications are slow or incur high transmission overhead. Recently, notable solutions like PRAC and DAPRAC, implementing partial packet recovery with network coding, could…

网络与互联网体系结构 · 计算机科学 2019-10-07 Kurniawan D. Irianto , Juan A. Cabrera , Giang T. Nguyen , Hani Salah , Frank H. P. Fitzek

One of the major challenges in Wireless Body Area Networks (WBANs) is to prolong the lifetime of network. Traditional research work focuses on minimizing transmit power; however, in the case of short range communication the consumption…

网络与互联网体系结构 · 计算机科学 2013-09-18 O. Rehman , N. Javaid , A. Haider , N. Amjad , A. A. Awan , M. Qamar , Z. A. Khan , U. Qasim