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Cell-free (CF) architecture and full-duplex (FD) communication are leading candidates for next-generation wireless networks. The CF framework removes cell boundaries in traditional cell-based systems, thereby mitigating inter-cell…

Signal Processing · Electrical Eng. & Systems 2024-12-09 Diluka Galappaththige , Mohammadali Mohammadi , Hien Quoc Ngo , Michail Matthaiou , Chintha Tellambura

Heterogeneous networks (HetNets) as a combination of macro cells and small cells are used to increase the cellular network's capacity, and present a perfect solution for high-speed communications. Increasing area spectrum efficiency and…

Networking and Internet Architecture · Computer Science 2019-07-29 Leila Marandi , Mansour Naslcheraghi , Seyed Ali Ghorashi , Mohammad Shikh-Bahaei

Femtocells have been considered by the wireless industry as a cost-effective solution not only to improve indoor service providing, but also to unload traffic from already overburdened macro networks. Due to spectrum availability and…

Networking and Internet Architecture · Computer Science 2016-11-17 Xiaoli Chu , Yuhua Wu , David López-Pérez , Xiaofeng Tao

Dynamic Time-division duplex (TDD) can provide efficient and flexible splitting of the common wireless cellular resources between uplink (UL) and downlink (DL) users. In this paper, the UL/DL optimization problem is formulated as a…

Networking and Internet Architecture · Computer Science 2016-11-18 Mohammed S. ElBamby , Mehdi Bennis , Walid Saad , Matti Latva-aho

The work presented in this paper deals with the issue of massive demands for higher capacity. For that matter, we investigate the spectrum resource management in outdoor mmWave cell for the uplink of cellular and D2D communications. Indeed,…

Networking and Internet Architecture · Computer Science 2016-05-20 Zeineb Guizani , Noureddine Hamdi

Interference shapes the interplay between capacity and coverage in cellular networks. However, interference is non-deterministic and depends on various system and channel parameters including user scheduling, frequency reuse, and fading…

Information Theory · Computer Science 2015-04-16 Naeem Akl , Jihad Fahs , Zaher Dawy

We study the degrees of freedom (DoF) of cellular networks in which a full duplex (FD) base station (BS) equipped with multiple transmit and receive antennas communicates with multiple mobile users. We consider two different scenarios. In…

Information Theory · Computer Science 2016-11-18 Sang-Woon Jeon , Sung Ho Chae , Sung Hoon Lim

Cellular uplink analysis has typically been undertaken by either a simple approach that lumps all interference into a single deterministic or random parameter in a Wyner-type model, or via complex system level simulations that often do not…

Information Theory · Computer Science 2016-11-17 Thomas D. Novlan , Harpreet S. Dhillon , Jeffrey G. Andrews

Full-duplex (FD) systems have the capability to transmit and receive at the same time in the same frequency band. FD systems can reduce congestion and latency and improve coverage and spectral efficiency. As a relay, they can increase range…

Signal Processing · Electrical Eng. & Systems 2021-10-26 Elyes Balti , Brian L. Evans

A full-duplex (FD) multiple antenna access point (AP) communicating with single antenna half-duplex (HD) spatially random users to support simultaneous uplink (UL)/downlink (DL) transmissions is investigated. Since FD nodes are inherently…

Information Theory · Computer Science 2016-11-18 Mohammadali Mohammadi , Himal A. Suraweera , Yun Cao , Ioannis Krikidis , Chintha Tellambura

Cell biasing and downlink transmit power are two controls that may be used to improve the spectral efficiency of cellular networks. With cell biasing, each mobile user associates with the base station offering, say, the highest biased…

Information Theory · Computer Science 2015-12-09 Lex Fridman , Jeffrey Wildman , Steven Weber

The implementation of full-duplex (FD) radio in wireless communications is a potential approach for achieving higher spectral efficiency. A possible application is its employment in the next generation of cellular networks. However, the…

Information Theory · Computer Science 2016-11-17 Constantinos Psomas , Ioannis Krikidis

Spectrum management has been identified as a crucial step towards enabling the technology of a cognitive radio network (CRN). Most of the current works dealing with spectrum management in the CRN focus on a single task of the problem, e.g.,…

Information Theory · Computer Science 2011-02-11 Mingyi Hong , Alfredo Garcia , Stephen Wilson

Uplink power control is an efficient scheme to mitigate pilot contamination in massive multiple-input multiple-output (MIMO) systems. In this work, we provide a comprehensive study on the effects of fractional power control (FPC) on the…

Networking and Internet Architecture · Computer Science 2018-09-11 Paolo Baracca , Lorenzo Galati Giordano , Adrian Garcia-Rodriguez , Giovanni Geraci , David Lopez-Perez

Full-duplex (FD) technology is envisaged as a key component for future mobile broadband networks due to its ability to boost the spectral efficiency. FD systems can transmit and receive simultaneously on the same frequency at the expense of…

Information Theory · Computer Science 2017-05-12 Italo Atzeni , Marios Kountouris

Full-duplex (FD) technology is gaining popularity for integration into a wide range of wireless networks due to its demonstrated potential in recent studies. In contrast to half-duplex (HD) technology, the implementation of FD in networks…

Networking and Internet Architecture · Computer Science 2024-02-09 Yonghwi Kim , Hyung-Joo Moon , Hanju Yoo , Byoungnam , Kim , Kai-Kit Wong , Chan-Byoung Chae

Modern cellular standards typically incorporate interference coordination schemes allowing near universal frequency reuse while preserving reasonably high spectral efficiencies over the whole coverage area. In particular, fractional…

Signal Processing · Electrical Eng. & Systems 2024-01-18 Jan García Morales , Guillem Femenias , Felip Riera Palou

Beamforming design has been widely investigated for integrated sensing and communication (ISAC) systems with full-duplex (FD) sensing and half-duplex (HD) communication. To achieve higher spectral efficiency, in this paper, we extend…

Information Theory · Computer Science 2023-04-20 Zhenyao He , Wei Xu , Hong Shen , Derrick Wing Kwan Ng , Yonina C. Eldar , Xiaohu You

We consider the uplink of a multicell multiuser multiple-input multiple-output system where the channel experiences both small and large-scale fading. The data detection is done by using the linear zero-forcing technique, assuming the base…

Information Theory · Computer Science 2012-07-02 Hien Quoc Ngo , Michail Matthaiou , Trung Q. Duong , Erik G. Larsson

We consider a single-cell massive MIMO full-duplex wireless communication system, where the base-station (BS) is equipped with a large number of antennas. We consider the setup where the single-antenna mobile users operate in half- duplex,…

Information Theory · Computer Science 2015-09-03 Wenzhuo Ouyang , Jingwen Bai , Ashutosh Sabharwal