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Large-scale mobile edge computing (MEC) systems require scalable solutions to allocate communication and computing resources to the users. In this letter we address this challenge by applying dynamic spectrum sharing among the base stations…

Information Theory · Computer Science 2019-10-14 Ming Zeng , Viktoria Fodor

Channel estimation is one of the key issues in practical massive multiple-input multiple-output (MIMO) systems. Compared with conventional estimation algorithms, deep learning (DL) based ones have exhibited great potential in terms of…

Information Theory · Computer Science 2021-08-24 Jiabao Gao , Mu Hu , Caijun Zhong , Geoffrey Ye Li , Zhaoyang Zhang

This article introduces a novel communication scheme, termed coded compressed sensing, for unsourced multiple-access communication. The proposed divide-and-conquer approach leverages recent advances in compressed sensing and forward error…

Signal Processing · Electrical Eng. & Systems 2019-06-26 Vamsi K. Amalladinne , Jean-Francois Chamberland , Krishna R. Narayanan

We provide a simple and accurate analytical model for multi-cell infrastructure IEEE 802.11 WLANs. Our model applies if the cell radius, $R$, is much smaller than the carrier sensing range, $R_{cs}$. We argue that, the condition $R_{cs} >>…

Networking and Internet Architecture · Computer Science 2009-03-14 Manoj K. Panda , Anurag Kumar

With the emergence of fluid antenna (FA) in wireless communications, the capability to dynamically adjust port positions offers substantial benefits in spatial diversity and spectrum efficiency, which are particularly valuable for mobile…

Signal Processing · Electrical Eng. & Systems 2025-09-25 Ying Ju , Mingdong Li , Haoyu Wang , Lei Liu , Youyang Qu , Mianxiong Dong , Victor C. M. Leung , Chau Yuen

We consider a dynamic multichannel access problem, where multiple correlated channels follow an unknown joint Markov model. A user at each time slot selects a channel to transmit data and receives a reward based on the success or failure of…

Networking and Internet Architecture · Computer Science 2018-02-21 Shangxing Wang , Hanpeng Liu , Pedro Henrique Gomes , Bhaskar Krishnamachari

This thesis focuses on link scheduling in wireless mesh networks by taking into account physical layer characteristics. The assumption made throughout is that a packet is received successfully only if the Signal to Interference and Noise…

Networking and Internet Architecture · Computer Science 2008-12-31 Ashutosh Deepak Gore

The ability to seamlessly switch between the macro networks and femtocell networks is a key driver for femtocell network deployment. The handover procedures for the integrated femtocell/macrocell networks differ from the existing handovers.…

Networking and Internet Architecture · Computer Science 2010-09-21 Mostafa Zaman Chowdhury , Yeong Min Jang

This letter investigates a cache-enabled multiuser mobile edge computing (MEC) system with dynamic task arrivals, taking into account the impact of proactive cache placement on the system's overall energy consumption. We consider that an…

Information Theory · Computer Science 2023-02-01 Jingxuan Liang , Hong Xing , Feng Wang , Vincent K. N. Lau

This paper presents a network layer model for a wireless multiple access system with both persistent and non-persistent users. There is a single access point with multiple identical channels. Each user who wants to send a file first scans a…

Networking and Internet Architecture · Computer Science 2019-09-24 Michael J. Neely

In distributed wireless networks, neighbor discovery is one of the bootstrapping primitives in supporting many important network functionalities. Existing neighbor discovery protocols mostly assume a single-channel network model and can…

Networking and Internet Architecture · Computer Science 2014-01-27 Lin Chen , Kaigui Bian

Opportunistic scheduling and routing can in principle greatly increase the throughput of decentralized wireless networks, but to be practical they must do so with small amounts of timely side information. In this paper, we propose three…

Information Theory · Computer Science 2011-07-21 Chun-Hung Liu , Jeffrey G. Andrews

We consider the learning of algorithmic tasks by mere observation of input-output pairs. Rather than studying this as a black-box discrete regression problem with no assumption whatsoever on the input-output mapping, we concentrate on tasks…

Machine Learning · Computer Science 2018-10-16 Alex Nowak-Vila , David Folqué , Joan Bruna

In this paper, we study the problem of dynamic channel allocation for URLLC traffic in a multi-user multi-channel wireless network where urgent packets have to be successfully transmitted in a timely manner. We formulate the problem as a…

Networking and Internet Architecture · Computer Science 2018-11-08 Nesrine Ben-Khalifa , Mohamad Assaad , Mérouane Debbah

Multicasting in wireless systems is a natural way to exploit the redundancy in user requests in a Content Centric Network. Power control and optimal scheduling can significantly improve the wireless multicast network's performance under…

Networking and Internet Architecture · Computer Science 2021-12-08 Ramkumar Raghu , Mahadesh Panju , Vaneet Aggarwal , Vinod Sharma

In this paper, we propose different practical distributed schemes to solve the rank failure problem in the compute and forward (CMF)-based multi-user multi-relay networks without central coordinator, in which the relays have no prior…

Information Theory · Computer Science 2015-04-07 Seyed Mohammad Azimi-Abarghouyi , Mohsen Hejazi , Masoumeh Nasiri-Kenari

We propose a quantum access network based on multicore fiber (MCF) to scale up the number of users in quantum key distribution (QKD) networks. The MCF is used as feeder fiber and single core single mode fibers (SSMFs) are used as drop…

Quantum Physics · Physics 2019-05-16 Chun Cai , Yongmei Sun , Jianing Niu , Peng Zhang , Yongrui Zhang , Yuefeng Ji

In this paper, we consider the ChannelComp framework, where multiple transmitters aim to compute a function of their values at a common receiver while using digital modulations over a multiple access channel. ChannelComp provides a general…

Signal Processing · Electrical Eng. & Systems 2025-02-14 Xiaojing Yan , Saeed Razavikia , Carlo Fischione

Recently, significant research attention has been devoted to the study of reconfigurable intelligent surfaces (RISs), which are capable of reconfiguring the wireless propagation environment by exploiting the unique properties of…

Networking and Internet Architecture · Computer Science 2021-05-04 Xuelin Cao , Bo Yang , Chongwen Huang , Chau Yuen , Marco Di Renzo , Zhu Han , Dusit Niyato , H. Vincent Poor , Lajos Hanzo

This paper investigates a smart spectrum-sharing framework for reconfigurable intelligent surface (RIS)-aided local high-quality wireless networks (LHQWNs) within a mobile network operator (MNO) ecosystem. Although RISs are often considered…

Systems and Control · Electrical Eng. & Systems 2026-03-27 Hamid Reza Hashempour , Mina Khadem , Eduard A. Jorswieck