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The back-pressure algorithm is a well-known throughput-optimal algorithm. However, its delay performance may be quite poor even when the traffic load is not close to network capacity due to the following two reasons. First, each node has to…

Networking and Internet Architecture · Computer Science 2010-05-31 Loc Bui , R. Srikant , Alexander Stolyar

In this work we consider the problem of downlink resource allocation for proportional fairness of long term received rates of data users and quality of service for real time sessions in an OFDMA-based wireless system. The base station…

Networking and Internet Architecture · Computer Science 2007-11-09 Tolga Girici , Chenxi Zhu , Jonathan R. Agre , Anthony Ephremides

In the rapidly expanding field of parallel processing, job schedulers are the "operating systems" of modern big data architectures and supercomputing systems. Job schedulers allocate computing resources and control the execution of…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-03-06 Albert Reuther , Chansup Byun , William Arcand , David Bestor , Bill Bergeron , Matthew Hubbell , Michael Jones , Peter Michaleas , Andrew Prout , Antonio Rosa , Jeremy Kepner

For ultra-reliable, low-latency communications (URLLC) applications such as mission-critical industrial control and extended reality (XR), it is important to ensure the communication quality of individual packets. Prior studies have…

Networking and Internet Architecture · Computer Science 2023-06-21 Zhibo Meng , Hongwei Zhang , James Gross

In this paper, we consider a set of agents, which may receive an observation of their state by a central observa- tion post via a shared wireless network. The aim of this work is to design a scheduling mechanism for the central observation…

Optimization and Control · Mathematics 2019-04-15 Mario Zanon , Themistoklis Charalambous , Henk Wymeersch , Paolo Falcone

The impact of transformer networks is booming, yet, they come with significant computational complexity. It is therefore essential to understand how to optimally map and execute these networks on modern neural processor hardware. So far,…

Hardware Architecture · Computer Science 2024-06-17 Steven Colleman , Arne Symons , Victor J. B. Jung , Marian Verhelst

In Large Language Model (LLM) inference, the output length of an LLM request is typically regarded as not known a priori. Consequently, most LLM serving systems employ a simple First-come-first-serve (FCFS) scheduling strategy, leading to…

Machine Learning · Computer Science 2024-08-29 Yichao Fu , Siqi Zhu , Runlong Su , Aurick Qiao , Ion Stoica , Hao Zhang

Interference among concurrent transmissions in a wireless network is a key factor limiting the system performance. One way to alleviate this problem is to manage the radio resources in order to maximize either the average or the worst-case…

Machine Learning · Computer Science 2019-06-24 Navid Naderializadeh , Jaroslaw Sydir , Meryem Simsek , Hosein Nikopour , Shilpa Talwar

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…

Information Theory · Computer Science 2015-04-08 Ahmed Douik , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

In this paper we consider upper and lower constraining users' service rates in a slotted, cross-layer scheduler context. Such schedulers often cannot guarantee these bounds, despite the usefulness in adhering to Quality of Service (QoS)…

Networking and Internet Architecture · Computer Science 2019-11-28 Jeremy Van den Eynde , Chris Blondia

It has been shown that using appropriate channel coding schemes in wireless environments, transmission energy can be significantly reduced by controlling the packet transmission rate. This paper seeks optimal solutions for downlink…

Optimization and Control · Mathematics 2016-11-17 Lei Miao , Jianfeng Mao , Christos G. Cassandras

In a wireless network, the efficiency of scheduling algorithms over time-varying channels depends heavily on the accuracy of the Channel State Information (CSI), which is usually quite ``costly'' in terms of consuming network resources.…

Networking and Internet Architecture · Computer Science 2014-04-01 Wenzhuo Ouyang , Atilla Eryilmaz , Ness B. Shroff

This paper proposes an optimized sensing based channel access framework for the LTE cognitive femto-cells, with an objective of maximizing the femto-cells downlink throughput. Cognitive femto-cells opportunistically transmit on the…

Information Theory · Computer Science 2015-02-16 Mohamed Hamid , Slimane Ben Slimane , Niclas Björsell

We study federated learning (FL) at the wireless edge, where power-limited devices with local datasets collaboratively train a joint model with the help of a remote parameter server (PS). We assume that the devices are connected to the PS…

Information Theory · Computer Science 2020-05-11 Mohammad Mohammadi Amiri , Deniz Gunduz , Sanjeev R. Kulkarni , H. Vincent Poor

This paper studies the problem of self-organizing heterogeneous LTE systems. We propose a model that jointly considers several important characteristics of heterogeneous LTE system, including the usage of orthogonal frequency division…

Networking and Internet Architecture · Computer Science 2013-07-30 I-Hong Hou , Chung Shue Chen

We propose an asynchronous iterative scheme that allows a set of interconnected nodes to distributively reach an agreement within a pre-specified bound in a finite number of steps. While this scheme could be adopted in a wide variety of…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-01-13 Andreas Grammenos , Themistoklis Charalambous , Evangelia Kalyvianaki

In this paper, to analyze end-to-end timing behavior in heterogeneous processor and network environments accurately, we adopt a heterogeneous selection value on communication contention (HSV_CC) algorithm, which can synchronize tasks and…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-09-12 Jaeyong Rho , Takuya Azumi , Mayo Nakagawa , Kenya Sato , Nobuhiko Nishio

Algorithms for scheduling structured parallel computations have been widely studied in the literature. For some time now, Work Stealing is one of the most popular for scheduling such computations, and its performance has been studied in…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-10-26 Guilherme Rito , Hervé Paulino

We consider coded caching over the fading broadcast channel, where the users, equipped with a memory of finite size, experience asymmetric fading statistics. It is known that a naive application of coded caching over the channel at hand…

Information Theory · Computer Science 2018-01-16 Richard Combes , Asma Ghorbel , Mari Kobayashi , Sheng Yang

Adaptive Radio Resource Allocation is essential for guaranteeing high bandwidth and power utilization as well as satisfying heterogeneous Quality-of-Service requests regarding next generation broadband multicarrier wireless access networks…

Information Theory · Computer Science 2012-11-19 Antonis G. Gotsis , Dimitris I. Komnakos , Demosthenes D. Vouyioukas , Philip Constantinou