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The tremendous increase in the size and heterogeneity of supercomputers makes it very difficult to predict the performance of a scheduling algorithm. Therefore, dynamic solutions, where scheduling decisions are made at runtime have…

分布式、并行与集群计算 · 计算机科学 2014-04-16 Olivier Beaumont , Loris Marchal

We present a simple mathematical framework for the description of the dynamics of glassy systems in terms of a random walk in a complex energy landscape pictured as a network of minima. We show how to use the tools developed for the study…

统计力学 · 物理学 2015-03-17 Paolo Moretti , Andrea Baronchelli , Alain Barrat , Romualdo Pastor-Satorras

We present a simple combinatorial framework for establishing approximate tensorization of variance and entropy in the setting of spin systems (a.k.a. undirected graphical models) based on balanced separators of the underlying graph. Such…

数据结构与算法 · 计算机科学 2023-07-18 Zongchen Chen

The hardcore model is one of the most classic and widely studied examples of undirected graphical models. Given a graph $G$, the hardcore model describes a Gibbs distribution of $\lambda$-weighted independent sets of $G$. In the last two…

数据结构与算法 · 计算机科学 2026-01-08 Zongchen Chen , Tianhui Jiang

Consider the problem of a multiple access channel in a time dependent environment with a large number of users. In such a system, mostly due to practical constraints (e.g., decoding complexity), not all users can be scheduled together, and…

信息论 · 计算机科学 2018-11-07 Ori Shmuel , Asaf Cohen , Omer Gurewitz

We investigate the scheduling of a common resource between several concurrent users when the feasible transmission rate of each user varies randomly over time. Time is slotted and users arrive and depart upon service completion. This may…

性能 · 计算机科学 2015-03-18 U. Ayesta , M. Erausquin , M. Jonckheere , I. M. Verloop

This paper proposes a new class of simple, distributed algorithms for scheduling in wireless networks. The algorithms generate new schedules in a distributed manner via simple local changes to existing schedules. The class is parameterized…

网络与互联网体系结构 · 计算机科学 2007-05-23 Sujay Sanghavi , Loc Bui , R. Srikant

We consider a Carrier Sense Multiple Access (CSMA) based scheduling algorithm for a single-hop wireless network under a realistic Signal-to-interference-plus-noise ratio (SINR) model for the interference. We propose two local optimization…

信息论 · 计算机科学 2017-02-24 Peruru Subrahmanya Swamy , Radha Krishna Ganti , Krishna Jagannathan

In this paper, we study joint queue-aware and channel-aware scheduling of arbitrarily bursty traffic over multi-state time-varying channels, where the bursty packet arrival in the network layer, the backlogged queue in the data link layer,…

信息论 · 计算机科学 2016-06-06 Meng Wang , Juan Liu , Wei Chen

In this work we investigate time varying networks with complex dynamics at the nodes. We consider two scenarios of network change in an interval of time: first, we have the case where each link can change with probability pt, i.e. the…

适应与自组织系统 · 物理学 2014-04-14 Ankit Kumar , Vidit Agrawal , Sudeshna Sinha

Recent studies on cloud-radio access networks assume either signal-level or scheduling-level coordination. This paper considers a hybrid coordinated scheme as a means to benefit from both policies. Consider the downlink of a multi-cloud…

信息论 · 计算机科学 2016-10-14 Ahmed Douik , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

We consider optimizing average queueing delay and average power consumption in a nonpreemptive multi-class M/G/1 queue with dynamic power control that affects instantaneous service rates. Four problems are studied: (1) satisfying per-class…

最优化与控制 · 数学 2011-01-17 Chih-ping Li , Michael J. Neely

The problem of scheduling in quantum networks amounts to choosing which entanglement swapping operations to perform to better serve user demand. The choice can be carried out following a variety of criteria (e.g. ensuring all users are…

量子物理 · 物理学 2025-10-08 Paolo Fittipaldi

We present an approach to generate chimera dynamics (localized frequency synchrony) in oscillator networks with two populations of (at least) two elements using a general method based on delayed interactions with linear and quadratic terms.…

适应与自组织系统 · 物理学 2017-10-25 Christian Bick , Michael Sebek , István Z. Kiss

This paper provides proofs of the rate stability, Harris recurrence, and epsilon-optimality of CSMA algorithms where the backoff parameter of each node is based on its backlog. These algorithms require only local information and are easy to…

信息论 · 计算机科学 2009-07-08 Libin Jiang , Devavrat Shah , Jinwoo Shin , Jean Walrand

Sharing perceptual data with other vehicles enhances the traffic safety of autonomous vehicles because it helps vehicles locate other vehicles and pedestrians in their blind spots. Such safety applications require high throughput and short…

网络与互联网体系结构 · 计算机科学 2019-03-26 Akihito Taya , Takayuki Nishio , Masahiro Morikura , Koji Yamamoto

The problem of uplink transmissions in massive connectivity is commonly dealt with using schemes for grant-free random access. When a large number of devices transmit almost synchronously, the receiver may not be able to resolve the…

信号处理 · 电气工程与系统科学 2024-12-09 Ao Chen , Wei Chen , Bo Ai , Petar Popovski

In the context of resource allocation in cloud-radio access networks, recent studies assume either signal-level or scheduling-level coordination. This paper, instead, considers a hybrid level of coordination for the scheduling problem in…

信息论 · 计算机科学 2015-04-08 Ahmed Douik , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

This paper investigates the problem of activity detection and channel estimation in cooperative multi-cell massive access systems with temporally correlated activity, where all access points (APs) are connected to a central unit via…

信号处理 · 电气工程与系统科学 2023-04-20 Weifeng Zhu , Meixia Tao , Xiaojun Yuan , Fan Xu , Yunfeng Guan

This paper studies the distributed scheduling of traffic flows with arbitrary deadlines that arrive at their source nodes and are transmitted to different destination nodes via multiple intermediate nodes in a wireless mesh network. When a…

网络与互联网体系结构 · 计算机科学 2024-07-16 Xin Wang , Xudong Wang