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We introduce a novel network-adaptive algorithm that is suitable for alleviating network packet losses for low-latency interactive communications between a source and a destination. Our network-adaptive algorithm estimates in real-time the…

网络与互联网体系结构 · 计算机科学 2020-06-30 Salma Emara , Silas L. Fong , Baochun Li , Ashish Khisti , Wai-Tian Tan , Xiaoqing Zhu , John Apostolopoulos

In this paper we investigate the optimal latency of communications. Focusing on fixed rate communication without any feedback channel, this paper encompasses low-latency strategies with which one hop and multi-hop communication issues are…

信息论 · 计算机科学 2017-01-05 Minh Au , Francois Gagnon

Mobile-edge computing (MEC) emerges as a promising paradigm to improve the quality of computation experience for mobile devices. Nevertheless, the design of computation task scheduling policies for MEC systems inevitably encounters a…

信息论 · 计算机科学 2016-11-15 Juan Liu , Yuyi Mao , Jun Zhang , Khaled B. Letaief

The problem of designing efficient feedback-based scheduling policies for chunked codes (CC) over packet networks with delay and loss is considered. For networks with feedback, two scheduling policies, referred to as random push (RP) and…

信息论 · 计算机科学 2012-07-20 Anoosheh Heidarzadeh , Amir H. Banihashemi

We consider use of FEC to reduce in-order delivery delay over packet erasure channels. We propose a class of streaming codes that is capacity achieving and provides a superior throughput-delay trade-off compared to block codes by…

信息论 · 计算机科学 2016-09-05 Mohammad Karzand , Douglas J. Leith , Jason Cloud , Muriel Medard

Over the past years, TCP has gone through numerous updates to provide performance enhancement under diverse network conditions. However, with respect to losses, little can be achieved with legacy TCP detection and recovery mechanisms. Both…

网络与互联网体系结构 · 计算机科学 2018-07-31 Simone Ferlin , Stepan Kucera , Holger Claussen , Ozgu Alay

We consider the transmission of packets across a lossy end-to-end network path so as to achieve low in-order delivery delay. This can be formulated as a decision problem, namely deciding whether the next packet to send should be an…

网络与互联网体系结构 · 计算机科学 2018-12-17 Pablo Garrido , Douglas Leith , Ramon Aguero

This paper proposes a "quasi-synchronous" design approach for signal processing circuits, in which timing violations are permitted, but without the need for a hardware compensation mechanism. The case of a low-density parity-check (LDPC)…

信息论 · 计算机科学 2017-11-21 François Leduc-Primeau , Frank R. Kschischang , Warren J. Gross

Forward Error Correction (FEC) is used ubiquitously in the communication pipeline. We explore noncooperative decoding where we aim to recover the code rate of a linear block code. We present a metric to characterize the quality of the code…

信息论 · 计算机科学 2026-03-03 Atreya Vedantam , Radha Krishna Ganti

One fundamental challenge in 5G URLLC is how to optimize massive MIMO systems for achieving low latency and high reliability. A natural design choice to maximize reliability and minimize retransmission is to select the lowest allowed target…

信息论 · 计算机科学 2024-10-30 Xu Du , Yin Sun , Ness B. Shroff , Ashutosh Sabharwal

It is well known that for any finite state Markov decision process (MDP) there is a memoryless deterministic policy that maximizes the expected reward. For partially observable Markov decision processes (POMDPs), optimal memoryless policies…

最优化与控制 · 数学 2016-02-16 Guido Montufar , Keyan Ghazi-Zahedi , Nihat Ay

We propose a hybrid protocol combining a rectangular error-correcting code - paired with an error-detecting code - and a backward error correction in order to send packages of information over a noisy channel. We depict a linear-time…

网络与互联网体系结构 · 计算机科学 2019-04-04 Binh-Minh Bui-Xuan , Pierre Meyer , Antoine Roux

Mobile edge caching (MEC) has received much attention as a promising technique to overcome the stringent latency and data hungry requirements in the future generation wireless networks. Meanwhile, full-duplex (FD) transmission can…

信息论 · 计算机科学 2019-11-01 Thang X. Vu , Symeon Chatzinotas , Björn Ottersten , Anh Vu Trinh

Modern communication devices are often equipped with multiple wireless communication interfaces with diverse characteristics. This enables exploiting a form of multi-connectivity known as interface diversity to provide path diversity with…

网络与互联网体系结构 · 计算机科学 2021-08-09 Igor Donevski , Israel Leyva Mayorga , Jimmy Jessen Nielsen , Petar Popovski

Driven by great demands on low-latency services of the edge devices (EDs), mobile edge computing (MEC) has been proposed to enable the computing capacities at the edge of the radio access network. However, conventional MEC servers suffer…

信号处理 · 电气工程与系统科学 2019-01-29 Pengfei Wang , Zijie Zheng , Boya Di , Lingyang Song

Model Predictive Control (MPC) is a well-established approach to solve infinite horizon optimal control problems. Since optimization over an infinite time horizon is generally infeasible, MPC determines a suboptimal feedback control by…

最优化与控制 · 数学 2022-10-26 Saskia Dietze , Martin A. Grepl

Designing data-driven controllers in the presence of noise is an important research problem, in particular when guarantees on stability, robustness, and constraint satisfaction are desired. In this paper, we propose a data-driven min-max…

系统与控制 · 电气工程与系统科学 2023-10-02 Yifan Xie , Julian Berberich , Frank Allgower

Coordination of distributed agents is required for problems arising in many areas, including multi-robot systems, networking and e-commerce. As a formal framework for such problems, we use the decentralized partially observable Markov…

人工智能 · 计算机科学 2014-01-16 Daniel S. Bernstein , Christopher Amato , Eric A. Hansen , Shlomo Zilberstein

The evolution of 5G and Beyond networks has enabled new applications with stringent end-to-end latency requirements, but providing reliable low-latency service with high throughput over public wireless networks is still a significant…

网络与互联网体系结构 · 计算机科学 2022-10-19 Andrea Bedin , Federico Chiariotti , Stepan Kucera , Andrea Zanella

The computational power of mobile robots is currently insufficient to achieve torque level whole-body Model Predictive Control (MPC) at the update rates required for complex dynamic systems such as legged robots. This problem is commonly…

机器人学 · 计算机科学 2019-08-12 Ruben Grandia , Farbod Farshidian , René Ranftl , Marco Hutter
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