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The first result is on the separability of the unicast capacity of stationary multi-channel multi-radio wireless networks, i.e., whether the capacity of such a network is equal to the sum of the capacities of the corresponding…

Information Theory · Computer Science 2009-12-26 Liangping Ma

In multi user Gaussian relay networks, it is desirable to transmit private information to each user as well as common information to all of them. However, the capacity region of such networks with both kinds of information is not easy to…

Information Theory · Computer Science 2018-01-16 Mohamed S. Ibrahim , Mohammed Nafie , Yahya Mohasseb

Generative AI has received significant attention among a spectrum of diverse industrial and academic domains, thanks to the magnificent results achieved from deep generative models such as generative pre-trained transformers (GPT) and…

Information Theory · Computer Science 2023-10-06 Mehdi Letafati , Samad Ali , Matti Latva-aho

Using drones for cellular coverage enhancement is a recent technology that has shown a great potential in various practical scenarios. However, one of the main challenges that limits the performance of drone-enabled wireless networks is the…

Networking and Internet Architecture · Computer Science 2021-04-06 Yujie Qin , Mustafa A. Kishk , Mohamed-Slim Alouini

A multi-hop synchronous wirelss network is said to be unknown if the nodes have no knowledge of the topology. A basic task in wireless network is that of broadcasting a message (created by a fixed source node) to all nodes of the network.…

Data Structures and Algorithms · Computer Science 2007-05-23 Andrea E. F. Clementi , Angelo Monti , Riccardo Silvestri

In this paper, we discuss the effects on throughput and fairness of dynamic channel bonding (DCB) in spatially distributed high-density wireless local area networks (WLANs). First, we present an analytical framework based on continuous-time…

Networking and Internet Architecture · Computer Science 2020-02-07 Sergio Barrachina-Muñoz , Francesc Wilhelmi , Boris Bellalta

Network densification is a promising cellular deployment technique that leverages spatial reuse to enhance coverage and throughput. Recent work has identified that at some point ultra-densification will no longer be able to deliver…

Information Theory · Computer Science 2017-04-06 Van Minh Nguyen , Marios Kountouris

Generative Diffusion Models (GDMs) have emerged as a transformative force in the realm of Generative Artificial Intelligence (GenAI), demonstrating their versatility and efficacy across various applications. The ability to model complex…

Networking and Internet Architecture · Computer Science 2024-05-09 Hongyang Du , Ruichen Zhang , Yinqiu Liu , Jiacheng Wang , Yijing Lin , Zonghang Li , Dusit Niyato , Jiawen Kang , Zehui Xiong , Shuguang Cui , Bo Ai , Haibo Zhou , Dong In Kim

Diffusion models are a class of generative models that serve to establish a stochastic transport map between an empirically observed, yet unknown, target distribution and a known prior. Despite their remarkable success in real-world…

Machine Learning · Computer Science 2025-03-13 Puheng Li , Zhong Li , Huishuai Zhang , Jiang Bian

This paper considers the design of optimal resource allocation policies in wireless communication systems which are generically modeled as a functional optimization problem with stochastic constraints. These optimization problems have the…

Machine Learning · Computer Science 2022-02-08 Mark Eisen , Clark Zhang , Luiz F. O. Chamon , Daniel D. Lee , Alejandro Ribeiro

In this work, we propose and analyze a generalized construction of distributed network codes for a network consisting of $M$ users sending different information to a common base station through independent block fading channels. The aim is…

Information Theory · Computer Science 2011-02-16 João Luiz Rebelatto , Bartolomeu F. Uchôa-Filho , Yonghui Li , Branka Vucetic

We study collective decision-making in a model of human groups, with network interactions, performing two alternative choice tasks. We focus on the speed-accuracy tradeoff, i.e., the tradeoff between a quick decision and a reliable…

Optimization and Control · Mathematics 2014-02-18 Vaibhav Srivastava , Naomi Ehrich Leonard

We present a framework to study linear deterministic interference networks over finite fields. Unlike the popular linear deterministic models introduced to study Gaussian networks, we consider networks where the channel coefficients are…

Information Theory · Computer Science 2013-08-06 Song-Nam Hong , Giuseppe Caire

We investigate the fundamental capacity limits of space-time journeys of information in mobile and Delay Tolerant Networks (DTNs), where information is either transmitted or carried by mobile nodes, using store-carry-forward routing. We…

Networking and Internet Architecture · Computer Science 2016-11-18 Philippe Jacquet , Bernard Mans , Georgios Rodolakis

Generative models, including denoising diffusion models (DM), are gaining attention in wireless applications due to their ability to learn complex data distributions. In this paper, we propose CoDiPhy, a novel framework that leverages…

Signal Processing · Electrical Eng. & Systems 2025-03-14 Peyman Neshaastegaran , Ming Jian

Deep reinforcement learning (DRL) has long been a promising solution for sequential resource management in wireless networks. However, conventional DRL methods are fundamentally limited by their reliance on unimodal policy distributions,…

Massive random access is an important technology for achieving ultra-massive connectivity in next-generation wireless communication systems. It aims to address key challenges during the initial access phase, including active user detection…

Information Theory · Computer Science 2026-02-09 Keke Ying , Zhen Gao , Sheng Chen , Tony Q. S. Quek , H. Vincent Poor

In this work, we propose and analyze a generalized construction of distributed network codes for a network consisting of M users sending different information to a common base station through independent block fading channels. The aim is to…

Information Theory · Computer Science 2015-03-13 João Luiz Rebelatto , Bartolomeu F. Uchôa-Filho , Yonghui Li , Branka Vucetic

We study the flow-level performance of random wireless networks. The locations of base stations (BSs) follow a Poisson point process. The number and positions of active users are dynamic. We associate a queue to each BS. The performance and…

Information Theory · Computer Science 2013-08-23 Richard Combes , Eitan Altman

We study the capacity region of a deterministic 4-node network, where 3 nodes can only communicate via the fourth one. However, the fourth node is not merely a relay since it can exchange private messages with all other nodes. This…

Information Theory · Computer Science 2013-08-09 Ahmed A. Zewail , Y. Mohasseb , M. Nafie , H. EL Gamal