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We consider a scalable user-centric wireless network with dynamic cluster formation as defined by Bj\"ornsson and Sanguinetti. After having shown the importance of dominant channel subspace information for uplink (UL) pilot decontamination…

Information Theory · Computer Science 2022-01-19 Fabian Göttsch , Noboru Osawa , Takeo Ohseki , Kosuke Yamazaki , Giuseppe Caire

Mobile edge computing (MEC) is a key player in low latency 5G networks with the task to resolve the conflict between computationally-intensive mobile applications and resource-limited mobile devices (MDs). As such, there has been intense…

Information Theory · Computer Science 2021-10-07 Yao Shi , Emad Alsusa , Mohammed W. Baidas

This paper investigates full-duplex unmanned aerial vehicle (UAV) aided small cell wireless systems, where the UAV serving as the base station (BS) is designed to transmit data to the downlink users and receive data from the uplink users…

Information Theory · Computer Science 2019-12-11 Meng Hua , Luxi Yang , Cunhua Pan , Arumugam Nallanathan

To overcome the limitations of DSRC with short range, non-supportability of high density networks, unreliable broadcast services, signal congestion and connectivity disruptions, cellular vehicle-to-everything (C-V2X) communication networks,…

Networking and Internet Architecture · Computer Science 2019-09-20 Muhammad Nadeem Sial , Yansha Deng , Junaid Ahmed , Arumugam Nallanathan , Mischa Dohler

Ever since the inception of mobile telephony, the downlink and uplink of cellular networks have been coupled, i.e. mobile terminals have been constrained to associate with the same base station (BS) in both the downlink and uplink…

Networking and Internet Architecture · Computer Science 2015-03-24 Federico Boccardi , Jeffrey Andrews , Hisham Elshaer , Mischa Dohler , Stefan Parkvall , Petar Popovski , Sarabjot Singh

This paper provides an analytical performance characterization of both uplink (UL) and downlink (DL) user-centric network multiple-input multiple-output (MIMO) systems, where a cooperating BS cluster is formed for each user individually and…

Information Theory · Computer Science 2018-08-22 Caiyi Zhu , Wei Yu

The cloud radio access network (C-RAN) concept, in which densely deployed access points (APs) are empowered by cloud computing to cooperatively support mobile users (MUs), to improve mobile data rates, has been recently proposed. However,…

Information Theory · Computer Science 2014-06-24 Shixin Luo , Rui Zhang , Teng Joon Lim

Cell association in cellular networks is an important aspect that impacts network capacity and eventually quality of experience. The scope of this work is to investigate the different and generalized cell association (CAS) strategies for…

Networking and Internet Architecture · Computer Science 2016-11-15 Hisham Elshaer , Christoforos Vlachos , Vasilis Friderikos , Mischa Dohler

In this paper, downlink (DL) precoding and power allocation strategies are identified for a time-division-duplex (TDD) multi-cell multi-user massive Full-Dimension MIMO (FD-MIMO) network. Utilizing channel reciprocity, DL channel state…

Information Theory · Computer Science 2018-09-27 Rubayet Shafin , Lingjia Liu

The forthcoming 5G cellular network is expected to overlay millimeter-wave (mmW) transmissions with the incumbent micro-wave ({\mu}W) architecture. The overall mm-{\mu}W resource management should therefore harmonize with each other. This…

Information Theory · Computer Science 2016-11-15 Jihong Park , Seong-Lyun Kim , Jens Zander

Meeting the continued growth in data traffic volume, Dynamic Time Division Duplex (D-TDD) has been introduced as a solution to deal with the uplink (UL) and downlink (DL) traffic asymmetry, mainly observed for dense heterogeneous network…

Networking and Internet Architecture · Computer Science 2020-03-30 Jalal Rachad , Ridha Nasri , Laurent Decreusefond

This paper provides a stochastic geometry framework to perform the coverage and rate analysis of a typical user in co-existing VLC and RF networks covering a large indoor area. The developed framework can be customized to capture the…

Information Theory · Computer Science 2017-10-04 Hina Tabassum , Ekram Hossain

When base stations (BSs) are deployed with multiple antennas, they need to have downlink (DL) channel state information (CSI) to optimize downlink transmissions by beamforming. The DL CSI is usually measured at mobile stations (MSs) through…

Information Theory · Computer Science 2022-06-28 Hyuckjin Choi , Junil Choi

Supporting ultra-reliable and low-latency communications (URLLC) is one of the major goals for the fifth-generation cellular networks. Since spectrum usage efficiency is always a concern, and large bandwidth is required for ensuring…

Information Theory · Computer Science 2018-01-04 Changyang She , Chenyang Yang , Tony Q. S. Quek

This work aims to design the uplink (UL) of a cellular network for maximal energy efficiency (EE). Each base station (BS) is randomly deployed within a given area and is equipped with $M$ antennas to serve $K$ user equipments (UEs). A…

Information Theory · Computer Science 2018-06-25 Andrea Pizzo , Daniel Verenzuela , Luca Sanguinetti , Emil Björnson

Intelligent load balancing is essential to fully realize the benefits of dense heterogeneous networks. Current techniques have largely been studied with single slope path loss models, though multi-slope models are known to more closely…

Information Theory · Computer Science 2016-11-17 Nikhil Garg , Sarabjot Singh , Jeffrey Andrews

We address the problem of uplink co-operative reception with constraints on both backhaul bandwidth and the receiver aperture, or number of antenna signals that can be processed. The problem is cast as a network utility (weighted sum rate)…

Systems and Control · Computer Science 2016-11-17 Shirish Nagaraj , Michael L. Honig , Khalid Zeineddine

With Full Duplex (FD), wireless terminal is capable of transmitting and receiving data simultaneously in the same frequency resources, however, it introduces self interference and co-channel interference. Even though various signal…

Information Theory · Computer Science 2023-02-01 Askar Mandali Kundu , Rudrashish Pal , Mayank Kumar , Sreejith T

We use stochastic geometry to analyze the performance of a partial decode-and-forward (PDF) relaying scheme applied in a user-assisted relaying setting, where an active user relays data through another idle user in uplink cellular…

Information Theory · Computer Science 2015-07-07 Hussain Elkotby , Mai Vu

In-band full-duplex (FD) communications have been optimistically promoted to improve the spectrum utilization and efficiency. However, the penetration of FD communications to the cellular networks domain is challenging due to the imposed…

Information Theory · Computer Science 2016-07-12 Ahmad AlAmmouri , Hesham ElSawy , Osama Amin , Mohamed-Slim Alouini