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Distributed deep learning workloads include throughput-intensive training tasks on the GPU clusters, where the Distributed Stochastic Gradient Descent (SGD) incurs significant communication delays after backward propagation, forces workers…

分布式、并行与集群计算 · 计算机科学 2021-03-16 Cheng Luo , Lei Qu , Youshan Miao , Peng Cheng , Yongqiang Xiong

The focus of this work is on the design of Raptor codes for continuous variable Quantum key distribution (CV-QKD) systems. We design a highly efficient Raptor code for very low signal to noise ratios (SNRs), which enables CV-QKD systems to…

信息论 · 计算机科学 2016-11-15 Mahyar Shirvanimoghaddam , Sarah J. Johnson , Andrew M. Lance

Multipath transport protocols like MPTCP transfer data across multiple routes in parallel and deliver it in order at the receiver. When the delay on one or more of the paths is variable, as is commonly the case, out of order arrivals are…

网络与互联网体系结构 · 计算机科学 2015-07-31 Andres Garcia-Saavedra , Mohammad Karzand , Douglas J. Leith

Speculative decoding (SD) accelerates LLM inference by verifying draft tokens in parallel. However, this method presents a critical trade-off: it improves throughput in low-load, memory-bound systems but degrades performance in high-load,…

分布式、并行与集群计算 · 计算机科学 2026-03-04 Rui Li , Zhaoning Zhang , Libo Zhang , Huaimin Wang , Xiang Fu , Zhiquan Lai

We consider the problem of scheduling transmissions over low-latency wireless communication links to control various control systems. Low-latency requirements are critical in developing wireless technology for industrial control and Tactile…

信号处理 · 电气工程与系统科学 2019-10-31 Mark Eisen , Mohammad M. Rashid , Dave Cavalcanti , Alejandro Ribeiro

LLM serving platforms are increasingly deployed as multi-model cloud systems, where user demand is often long-tailed: a few popular large models receive most requests, while many smaller tail models remain underutilized. We propose…

分布式、并行与集群计算 · 计算机科学 2026-05-13 Jincheng Xie , Yawen Ling , Qi Xiao , Feiyu Zhang , Zhongyi Huang , Wen Hu , Yu Zheng

Many optical circuit switched data center networks (DCN) have been proposed in the past to attain higher capacity and topology reconfigurability, though commercial adoption of these architectures have been minimal. One major challenge these…

网络与互联网体系结构 · 计算机科学 2020-10-02 Min Yee Teh , Shizhen Zhao , Peirui Cao , Keren Bergman

High-throughput blockchains require efficient transaction broadcast mechanisms that can deliver transactions to most network nodes with low bandwidth overhead and latency. Existing schemes coordinate transmissions across peers to avoid…

网络与互联网体系结构 · 计算机科学 2022-05-05 Lei Yang , Yossi Gilad , Mohammad Alizadeh

Multi-access edge computing (MEC) is viewed as an integral part of future wireless networks to support new applications with stringent service reliability and latency requirements. However, guaranteeing ultra-reliable and low-latency MEC…

系统与控制 · 电气工程与系统科学 2022-01-26 Arian Ahmadi , Omid Semiari , Mehdi Bennis , Merouane Debbah

Multi-access edge computing (MEC) promises to enable latency-critical applications by bringing computational power closer to mobile devices, but our measurements on commercial MEC deployments reveal frequent SLO violations due to high tail…

网络与互联网体系结构 · 计算机科学 2026-03-24 Xiao Zhang , Daehyeok Kim

Conventional turbo codes (CTCs) usually employ a block-oriented interleaving so that each block is separately encoded and decoded. As interleaving and de-interleaving are performed within a block, the message-passing process associated with…

信息论 · 计算机科学 2007-07-13 Yan-Xiu Zheng , Yu T. Su

In this paper, we propose a secure short-packet communication (SPC) system involving an unmanned aerial vehicle (UAV)-aided relay in the presence of a terrestrial passive eavesdropper. The considered system, which is applicable to various…

信息论 · 计算机科学 2024-01-23 Milad Tatar Mamaghani , Xiangyun Zhou , Nan Yang , A. Lee Swindlehurst

In a distributed computing system operating according to the map-shuffle-reduce framework, coding data prior to storage can be useful both to reduce the latency caused by straggling servers and to decrease the inter-server communication…

信息论 · 计算机科学 2018-08-22 Jingjing Zhang , Osvaldo Simeone

Large language model (LLM) inference at the network edge is a promising serving paradigm that leverages distributed edge resources to run inference near users and enhance privacy. Existing edge-based LLM inference systems typically adopt…

系统与控制 · 电气工程与系统科学 2025-10-14 Bingjie Zhu , Zhixiong Chen , Liqiang Zhao , Hyundong Shin , Arumugam Nallanathan

In this paper, we propose a sequential and incremental precoder design for downlink joint transmission (JT) network MIMO systems with imperfect backhaul links. The objective of our design is to minimize the maximum of the sub-stream mean…

信号处理 · 电气工程与系统科学 2020-03-18 Ming Ding , Jun Zou , Zeng Yang , Hanwen Luo , Wen Chen

Recently, physical layer security based approaches have drawn considerable attentions and are envisaged to provide secure communications in the wireless networks. However, most existing literatures only focus on the physical layer. Thus,…

信息论 · 计算机科学 2013-08-19 Jun Wang , Pengfei Huang , Xudong Wang

The traditional SegNet architecture commonly encounters significant information loss during the sampling process, which detrimentally affects its accuracy in image semantic segmentation tasks. To counter this challenge, we introduce an…

图像与视频处理 · 电气工程与系统科学 2024-06-05 Zijun Gao , Qi Wang , Taiyuan Mei , Xiaohan Cheng , Yun Zi , Haowei Yang

In this paper, we investigate a dynamic packet scheduling algorithm designed to enhance the eXtended Reality (XR) capacity of fifth-generation (5G)-Advanced networks with multiple cells, multiple users, and multiple services. The scheduler…

网络与互联网体系结构 · 计算机科学 2023-11-16 Pouria Paymard , Stefano Paris , Abolfazl Amiri , Troels E. Kolding , Fernando Sanchez Moya , Klaus I. Pedersen

Future networks are expected to support various ultra-reliable low-latency communications via wireless links. To avoid the loss of packets and keep the low latency, sliding network coding (SNC) is an emerging technology by generating…

信息论 · 计算机科学 2022-04-26 Fangzhou Wu , Zhiyuan Tan , Huiying Zhu , Pengpeng Dong

Slow running or straggler tasks can significantly reduce computation speed in distributed computation. Recently, coding-theory-inspired approaches have been applied to mitigate the effect of straggling, through embedding redundancy in…

机器学习 · 统计学 2018-01-24 Can Karakus , Yifan Sun , Suhas Diggavi , Wotao Yin