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Pulse position modulation (PPM) is a popular signal modulation technique which creates M-ary data by means of the position of a pulse within a time interval. While PPM and its variations have great advantages in many contexts, this type of…

信息论 · 计算机科学 2013-08-20 Yuichiro Fujiwara

Quantum mechanical control of the position of a particle by using a trapping potential well is an important problem for the manipulation of a quantum particle. We study the probability of successful conveyance of a particle trapping in a…

量子物理 · 物理学 2025-01-07 Satoshi Morita , Yoshiaki Teranishi , Seiji Miyashita

Coflow is a prominent network abstraction for modeling communication patterns in data centers. Since coflow scheduling in large-scale data centers is $\mathcal{NP}$-hard, this paper investigates this problem within heterogeneous parallel…

数据结构与算法 · 计算机科学 2026-05-26 Chi-Yeh Chen

Ensuring AI models align with human values is essential for their safety and functionality. Reinforcement learning from human feedback (RLHF) leverages human preferences to achieve this alignment. However, when preferences are sourced from…

机器学习 · 计算机科学 2025-02-10 Ryan Bahlous-Boldi , Li Ding , Lee Spector , Scott Niekum

Max-Plus Linear (MPL) systems are an algebraic formalism with practical applications in transportation networks, manufacturing and biological systems. In this paper, we investigate the problem of automatically analyzing the properties of…

形式语言与自动机理论 · 计算机科学 2023-08-22 Muhammad Syifa'ul Mufid , Andrea Micheli , Alessandro Abate , Alessandro Cimatti

Packing and covering linear programs (PC-LPs) form an important class of linear programs (LPs) across computer science, operations research, and optimization. In 1993, Luby and Nisan constructed an iterative algorithm for approximately…

数据结构与算法 · 计算机科学 2018-02-28 Zeyuan Allen-Zhu , Lorenzo Orecchia

Microscopic flows are almost universally linear, laminar and stationary because Reynolds number, $Re$, is usually very small. That impedes mixing in micro-fluidic devices, which sometimes limits their performance. Here we show that truly…

混沌动力学 · 物理学 2009-11-10 Teodor Burghelea , Enrico Segre , Israel Bar-Joseph , Alex Groisman , Victor Steinberg

We propose a low-complexity localization framework for uplink distributed MIMO (D-MIMO) systems, targeting the challenge of minimizing the highly spiky maximum-likelihood (ML) cost function that arises in sparsely deployed phasecoherent…

信号处理 · 电气工程与系统科学 2025-12-12 Sauradeep Dey , Musa Furkan Keskin , Dario Tagliaferri , Gonzalo Seco-Granados , Mikko Valkama , Henk Wymeersch

Inspired by a common technique for shuffling a deck of cards on a table without riffling, we formalize the pile shuffle and investigate its capabilities as a sorting device. Our study is novel in that we consider pile shuffle in three…

组合数学 · 数学 2025-06-03 Kyle B. Treleaven

Probabilistic shaping is a pragmatic approach to improve the performance of coherent optical fiber communication systems. In the nonlinear regime, the advantages offered by probabilistic shaping might increase thanks to the opportunity to…

信息论 · 计算机科学 2024-01-19 Stella Civelli , Enrico Forestieri , Marco Secondini

We consider space-bounded computations on a random-access machine (RAM) where the input is given on a read-only random-access medium, the output is to be produced to a write-only sequential-access medium, and the available workspace allows…

数据结构与算法 · 计算机科学 2015-10-27 Omar Darwish , Amr Elmasry , Jyrki Katajainen

Runtime repeated recursion unfolding was recently introduced as a just-in-time program transformation strategy that can achieve super-linear speedup. So far, the method was restricted to single linear direct recursive rules in the…

编程语言 · 计算机科学 2025-03-14 Thom Fruehwirth

Robot motion planning often requires finding trajectories that balance different user intents, or preferences. One of these preferences is usually arrival at the goal, while another might be obstacle avoidance. Here, we formalize these, and…

机器人学 · 计算机科学 2018-12-03 Aleksandra Faust , Hao-Tien Lewis Chiang , Lydia Tapia

A linear time approximate maximum likelihood decoding algorithm on tail-biting trellises is prsented, that requires exactly two rounds on the trellis. This is an adaptation of an algorithm proposed earlier with the advantage that it reduces…

信息论 · 计算机科学 2008-02-07 K. Murali Krishnan , Priti Shankar

This paper proposes a novel joint channel estimation and beamforming approach for multicell wideband massive multiple input multiple output (MIMO) systems. With the proposed channel estimation and beamforming approach, we determine the…

信息论 · 计算机科学 2017-08-15 Tadilo Endeshaw Bogale , Long Bao Le , Xianbin Wang , Luc Vandendorpe

In molecular communication (MC), combining different types of particles at the transmitter is a degree of freedom which can be utilized to improve performance. In this paper, we address the problem of pulse shaping to simplify time…

Multi-packet reception (MPR) has been recognized as a powerful capacity-enhancement technique for random-access wireless local area networks (WLANs). As is common with all random access protocols, the wireless channel is often…

网络与互联网体系结构 · 计算机科学 2016-11-15 Ying Jun , Zhang

We give improved multi-pass streaming algorithms for the problem of maximizing a monotone or arbitrary non-negative submodular function subject to a general $p$-matchoid constraint in the model in which elements of the ground set arrive one…

数据结构与算法 · 计算机科学 2021-02-22 Chien-Chung Huang , Theophile Thiery , Justin Ward

In a cognitive radio scenario we consider a single secondary user (SU) accessing a multi-channel system. The SU senses the channels sequentially to detect if a primary user (PU) is occupying the channels, and stops its search to access a…

信息论 · 计算机科学 2015-12-31 Ahmed Ewaisha , Cihan Tepedelenlioğlu

Several novel industrial applications involve human control of vehicles, cranes, or mobile robots through various high-throughput feedback systems, such as Virtual Reality (VR) and tactile/haptic signals. The near real-time interaction…

网络与互联网体系结构 · 计算机科学 2022-08-26 Andrea Bedin , Federico Chiariotti , Andrea Zanella