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Dynamic time division duplexing (TDD) is one of the major novelties of the 5G new radio standard. It notably improves the network resource utilization with sporadic directional packet arrivals. Although, the feasibility of the…

Signal Processing · Electrical Eng. & Systems 2020-01-17 Ali A. Esswie , Klaus I. Pedersen , Preben E. Mogensen

This work aims to design a cellular network for maximal energy efficiency (EE). In particular, we consider the uplink with multi-antenna base stations and assume that zero- forcing (ZF) combining is used for data detection with imperfect…

Information Theory · Computer Science 2017-09-19 Andrea Pizzo , Daniel Verenzuela , Luca Sanguinetti , Emil Björnson

Future wireless cellular networks must support both enhanced mobile broadband (eMBB) and ultra reliable low latency communication (URLLC) to manage heterogeneous data traffic for emerging wireless services. To achieve this goal, a promising…

Information Theory · Computer Science 2021-03-11 Fatemeh Lotfi , Omid Semiari

With the expected proliferation of delay constrained applications, future communication technologies are pushed towards using short codes. The performance using short codes cannot be inferred through classical channel capacity analysis,…

Information Theory · Computer Science 2023-12-19 Nourhan Hesham , Hesham ElSawy , Jahangir Hossain , Anas Chaaban

Energy-aware system design is an important optimization task for static and mobile Internet of Things (IoT)-based sensor nodes, especially for highly resource-constrained vehicles such as mobile robotic systems. For 4G/5G-based cellular…

Networking and Internet Architecture · Computer Science 2020-02-20 Robert Falkenberg , Benjamin Sliwa , Nico Piatkowski , Christian Wietfeld

A limitation of bandwidth in the wireless network and the exponential rise in the high data rate requirement prompted the development of Massive Multiple-Input-Multiple-Output (MIMO) technique in 5G. Using this method the ever rising data…

Signal Processing · Electrical Eng. & Systems 2024-06-11 Mariea Sharaf Anzum , Moontasir Rafique , Md. Asif Ishrak Sarder , Fehima Tajrian , Abdullah Bin Shams

One main goal of 5G-and-beyond systems is to simultaneously serve many users, each having a requested spectral efficiency (SE), in an energy-efficient way. The network capacity cannot always satisfy all the SE requirements, for example,…

Information Theory · Computer Science 2020-06-16 Trinh Van Chien , Emil Björnson , Hien Quoc Ngo

This article provides dives into the fundamentals of dense and ultra-dense small cell wireless networks, discussing the reasons why dense and ultra-dense small cell networks are fundamentally different from sparse ones, and why the…

Networking and Internet Architecture · Computer Science 2018-12-07 David Lopez-Perez , Ming Ding

This article investigates the prominent dilemma between capacity and reliability in heterogeneous ultra-dense distributed networks, and advocates a new measure of effective capacity to quantify the maximum sustainable data rate of a link…

Information Theory · Computer Science 2017-11-15 Qimei Cui , Yu Gu , Wei Ni , Xuefei Zhang , Xiaofeng Tao , Ping Zhang , Ren Ping Liu

In this paper, we investigate the uplink performance of cell-free (CF) extremely large-scale multiple-input-multipleoutput (XL-MIMO) systems, which is a promising technique for future wireless communications. More specifically, we consider…

Information Theory · Computer Science 2023-02-15 Hao Lei , Zhe Wang , Huahua Xiao , Jiayi Zhang , Bo Ai

Recently, Dynamic Time Division Duplex (TDD) has been proposed to handle the asymmetry of traffic demand between DownLink (DL) and UpLink (UL) in Heterogeneous Networks (HetNets). However, for mixed traffic consisting of best effort traffic…

Networking and Internet Architecture · Computer Science 2016-08-25 Qiang Fan , Hancheng Lu , Peilin Hong , Chang Wen Chen

In this paper, we analyze the performance of the uplink communication of massive multi-cell multiple-input multiple-output (MIMO) systems under the effects of pilot contamination and delayed channels because of terminal mobility. The base…

Information Theory · Computer Science 2016-11-17 Anastasios K. Papazafeiropoulos , Hien Quoc Ngo , Tharm Ratnarajah

This paper aims to characterize the capacity limits of a wireless cellular network with a full-duplex (FD) base-station (BS) and half-duplex user terminals, in which three independent messages are communicated: the uplink message $m_1$ from…

Information Theory · Computer Science 2020-12-09 Kaiming Shen , Reza K. Farsani , Wei Yu

The paper carries out performance analysis of a multiuser full-duplex (FD) communication system. Multiple FD UEs share the same spectrum resources, simultaneously, at both the uplink and downlink. This results in co-channel interference…

Networking and Internet Architecture · Computer Science 2017-06-02 Chandan Pradhan , Garimella Rama Murthy

Employing multi-tier networks is among the most promising approaches to address the rapid growth of the data demand in cellular networks. In this paper, we study a two-tier uplink cellular network consisting of femtocells and a macrocell.…

Information Theory · Computer Science 2014-08-06 Zolfa Zeinalpour-Yazdi , Shirin Jalali

The recent progress in the area of self-interference cancellation (SIC) design has enabled the development of full-duplex (FD) single and multiple antenna systems. In this paper, we propose a design for FD eNodeB (eNB) and user equipment…

Information Theory · Computer Science 2015-07-09 Chandan Pradhan , Kunal Sankhe , Sumit Kumar , Garimella Rama Murthy

In this correspondence, we investigate networked sensing in perceptive mobile networks under a bistatic multi-transmitter single-receiver uplink topology, where multiple user equipments (UEs) transmit signals over orthogonal…

Signal Processing · Electrical Eng. & Systems 2026-03-18 Jingying Bao , J. Andrew Zhang , Kai Wu , Christos Masouros , Y. Jay Guo

Dynamic Time Division Duplex (TDD) has been introduced as a solution to deal with the uplink and downlink traffic asymmetry, mainly observed for dense heterogeneous network deployments. However, the use of this feature requires new…

Networking and Internet Architecture · Computer Science 2018-05-18 Jalal Rachad , Ridha Nasri , Laurent Decreusefond

The Narrowband Internet of Things (NB-IoT) is a cellular technology introduced by the Third Generation Partnership Project (3GPP) to provide connectivity to a large number of low-cost IoT devices with strict energy consumption limitations.…

Information Theory · Computer Science 2024-10-28 Sami Nadif , Essaid Sabir , Halima Elbiaze , Abdelkrim Haqiq

Smart grid is an energy network that integrates advanced power equipment, communication technology and control technology. It can transmit two-way power and data among all components of the grid at the same time. The existing smart grid…

Networking and Internet Architecture · Computer Science 2020-11-20 Qiyue Li , Tengfei Cao , Wei Sun , Weitao Li