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We investigate the possible performance gains of power control in multi-layer cellular systems where microcells and picocells are distributed within macrocells. Although multilayers in cellular networks help increase system capacity and…

Networking and Internet Architecture · Computer Science 2012-03-29 Kemal Davaslioglu , Ender Ayanoglu

This paper considers wireless uplink information and downlink power transfer in cell-free massive multiple-input multiple-output systems. The single-antenna user equipments (UEs) utilize the energy harvested in the downlink to transmit…

Information Theory · Computer Science 2020-11-13 Özlem Tuğfe Demir , Emil Björnson

This paper considers the problem of how to allocate power among competing users sharing a frequency-selective interference channel. We model the interaction between selfish users as a non-cooperative game. As opposed to the existing…

Computer Science and Game Theory · Computer Science 2008-12-16 Yi Su , Mihaela van der Schaar

The deployment of underlay small base stations (SBSs) is expected to significantly boost the spectrum efficiency and the coverage of next-generation cellular networks. However, the coexistence of SBSs underlaid to an existing macro-cellular…

Computer Science and Game Theory · Computer Science 2012-12-14 Francesco Pantisano , Mehdi Bennis , Walid Saad , Merouane Debbah , Matti Latva-aho

We formulate a Stackelberg game between an attacker and a defender of a power system. The attacker attempts to alter the load setpoints of the power system covertly and intelligently, so that the voltage stability margin of the grid is…

Systems and Control · Electrical Eng. & Systems 2020-09-14 Lu An , Aranya Chakrabortty , Alexandra Duel-Hallen

In this paper, we investigate spectrum-power trading between a small cell (SC) and a macro cell (MC), where the SC consumes power to serve the macro cell users (MUs) in exchange for some bandwidth from the MC. Our goal is to maximize the…

Information Theory · Computer Science 2017-04-12 Qingqing Wu , Geoffrey Ye Li , Wen Chen , Derrick Wing Kwan Ng

This paper considers a multi-cell AirComp network and investigates the optimal power control policies over multiple cells to regulate the effect of inter-cell interference. First, we consider the scenario of centralized multi-cell power…

Information Theory · Computer Science 2020-07-24 Xiaowen Cao , Guangxu Zhu , Jie Xu , Kaibin Huang

This paper studies two power control problems in energy harvesting wireless networks where one hybrid base station (HBS) and all user equipments (UEs) are operating in in-band full-duplex mode. We consider minimizing the aggregate power…

Signal Processing · Electrical Eng. & Systems 2018-07-23 Rojin Aslani , Mehdi Rasti

Cellular networks are expected to be the main communication infrastructure to support the expanding applications of Unmanned Aerial Vehicles (UAVs). As these networks are deployed to serve ground User Equipment (UES), several issues need to…

Networking and Internet Architecture · Computer Science 2022-01-05 H. Hellaoui , M. Bagaa , A. Chelli , T. Taleb

Cell-free massive MIMO (CF-mMIMO) is expected to provide reliable wireless services for a large number of user equipments (UEs) using access points (APs) distributed across a wide area. When the UEs are battery-powered, uplink energy…

Signal Processing · Electrical Eng. & Systems 2022-05-10 Thomas Choi , Masaaki Ito , Issei Kanno , Takeo Oseki , Kosuke Yamazaki , Andreas F. Molisch

This paper investigates spectrum-power trading be- tween a small cell (SC) and a macro-cell (MC), where the SC consumes power to serve the macro-cell users (MUs) in exchange for some bandwidth from the MC. Our goal is to maximize the system…

Information Theory · Computer Science 2016-07-13 Qingqing Wu , Geoffrey Ye Li , Wen Chen , Derrick Wing Kwan Ng

Cell-free massive MIMO (CF-mMIMO) provides wireless connectivity for a large number of user equipments (UEs) using access points (APs) distributed across a wide area with high spectral efficiency (SE). The energy efficiency (EE) of the…

Information Theory · Computer Science 2022-05-10 Thomas Choi , Masaaki Ito , Issei Kanno , Jorge Gomez-Ponce , Colton Bullard , Takeo Ohseki , Kosuke Yamazaki , Andreas F. Molisch

This paper proposes a peer-to-peer energy trading scheme that can help the centralized power system to reduce the total electricity demand of its customers at the peak hour. To do so, a cooperative Stackelberg game is formulated, in which…

Systems and Control · Electrical Eng. & Systems 2019-08-27 Wayes Tushar , Tapan Kumar Saha , Chau Yuen , Thomas Morstyn , Nahid-Al-Masood , H. Vincent Poor , Richard Bean

We study the problem of interference management in large-scale small cell networks, where each user equipment (UE) needs to determine in a distributed manner when and at what power level it should transmit to its serving small cell base…

Information Theory · Computer Science 2015-03-10 Kartik Ahuja , Yuanzhang Xiao , Mihaela van der Schaar

In this paper, we investigate downlink power control in massive multiple-input multiple-output (MIMO) networks with distributed antenna arrays. The base station (BS) in each cell consists of multiple antenna arrays, which are deployed in…

Information Theory · Computer Science 2020-01-14 Noman Akbar , Emil Björnson , Erik G. Larsson , Nan Yang

This paper investigates the energy efficiency (EE) optimization in downlink multi-cell massive multiple-input multiple-output (MIMO). In our research, the statistical channel state information (CSI) is exploited to reduce the signaling…

Information Theory · Computer Science 2021-09-06 Li You , Yufei Huang , Di Zhang , Zheng Chang , Wenjin Wang , Xiqi Gao

How would a cellular network designed for maximal energy efficiency look like? To answer this fundamental question, tools from stochastic geometry are used in this paper to model future cellular networks and obtain a new lower bound on the…

Information Theory · Computer Science 2016-04-06 Emil Björnson , Luca Sanguinetti , Marios Kountouris

In this paper we investigate the sub-channel assignment and power control to maximize the total sum rate in the uplink of two-cell network. It is assumed that there are some sub-channels in each cell which should be allocated among some…

Signal Processing · Electrical Eng. & Systems 2019-07-09 Ata Khalili , Soroush Akhlaghi

A decentralized network of cognitive and non-cognitive transmitters where each transmitter aims at maximizing his energy-efficiency is considered. The cognitive transmitters are assumed to be able to sense the transmit power of their…

Information Theory · Computer Science 2013-04-16 Mael Le Treust , Samson Lasaulce , Yezekael Hayel , Gaoning He

The uplink of interference-limited cellular networks with base stations that have large numbers of antennas and use linear Minimum-Mean-Square Error (MMSE) processing with power control is analyzed. Simple approximations, which are exact in…

Information Theory · Computer Science 2015-06-22 Siddhartan Govindasamy