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We investigate energy efficiency (EE) optimization for single-cell massive multiple-input multiple-output (MIMO) downlink transmission with only statistical channel state information (CSI) available at the base station. We first show that…

信息论 · 计算机科学 2020-04-14 Li You , Jiayuan Xiong , Xinping Yi , Jue Wang , Wenjin Wang , Xiqi Gao

This paper investigates the energy efficiency (EE) and spectral efficiency (SE) trade-off in uplink distributed massive multiple-input multiple-output (D-mMIMO) systems. Unlike conventional approaches where power consumption focuses…

网络与互联网体系结构 · 计算机科学 2026-01-21 Mohd Saif Ali Khan , Karthik RM , Samar Agnihotri

In this work, we consider the downlink of a single-cell multi-user MIMO system in which the base station (BS) makes use of $N$ antennas to communicate with $K$ single-antenna user equipments (UEs). The UEs move around in the cell according…

信息论 · 计算机科学 2016-11-18 Luca Sanguinetti , Aris L. Moustakas , Emil Bjornson , Merouane Debbah

Assume that a multi-user multiple-input multiple-output (MIMO) communication system must be designed to cover a given area with maximal energy efficiency (bit/Joule). What are the optimal values for the number of antennas, active users, and…

信息论 · 计算机科学 2014-05-02 Emil Björnson , Luca Sanguinetti , Jakob Hoydis , Mérouane Debbah

One of the most important challenges in the fifth generation (5G) of telecommunication systems is the efficiency of energy and spectrum. Massive multiple-input multiple-output (MIMO) systems have been proposed by researchers to resolve…

信号处理 · 电气工程与系统科学 2023-11-28 Abdolrasoul Sakhaei Gharagezlou , Nima Imani , Mahdi Nangir

This paper considers a single-cell massive multiple-input multiple-output (MIMO) system equipped with a base station (BS) that uses one-bit quantization and investigates the energy efficiency (EE) and spectral efficiency (SE) trade-off. We…

信息论 · 计算机科学 2017-04-13 Yongzhi Li , Cheng Tao , Amine Mezghani , A. Lee Swindlehurst , Gonzalo Seco-Granados , Liu Liu

In this paper, we consider wireless powered communication networks which could operate perpetually, as the base station (BS) broadcasts energy to the multiple energy harvesting (EH) information transmitters. These employ "harvest then…

信息论 · 计算机科学 2016-03-02 Zoran Hadzi-Velkov , Ivana Nikoloska , George K. Karagiannidis , Trung Q. Duong

As we make progress towards the era of fifth generation (5G) communication networks, energy efficiency (EE) becomes an important design criterion because it guarantees sustainable evolution. In this regard, the massive multiple-input…

网络与互联网体系结构 · 计算机科学 2015-11-30 K. N. R. Surya Vara Prasad , Ekram Hossain , Vijay K. Bhargava

Characterizing the fundamental energy efficiency (EE) limits of MIMO broadcast channels (BC) is significant for the development of green wireless communications. We address the EE optimization problem for MIMO-BC in this paper and consider…

信息论 · 计算机科学 2012-06-12 Jie Xu , Ling Qiu

One of focuses in green communication studies is the energy efficiency (EE) of massive multiple-input multiple-output (MIMO) systems. Although the massive MIMO technology can improve the spectral efficiency (SE) of cellular networks by…

网络与互联网体系结构 · 计算机科学 2019-02-04 Shuang Zheng , Jing Yang , Xiaohu Ge , Yonghui Li , Lin Tian , Jinglin Shi

Radio frequency (RF) wireless power transfer (WPT) is a key technology for future low-power wireless systems. However, the inherently low end-to-end power transfer efficiency (PTE) is challenging for practical applications. The main factors…

信号处理 · 电气工程与系统科学 2024-05-10 Abdul Basit Khattak , Onel L. A. López , Amirhossein Azarbahram , Deepak Kumar , Matti Latva-aho

This paper studies downlink energy efficiency (EE) of a cellular massive Multiple Input Multiple Output (MIMO) system with massive number of antennas at both base station (BS) and relay considering cell-edge users which is less investigated…

信息论 · 计算机科学 2021-12-21 Mohammad Koolivand , Mohammad Hossein Bahonar , Mohammad Sadegh Fazel

This paper studies a wireless-energy-transfer (WET) enabled massive multiple-input-multiple-output (MIMO) system (MM) consisting of a hybrid data-and-energy access point (H-AP) and multiple single-antenna users. In the WET-MM system, the…

信息论 · 计算机科学 2016-11-18 Gang Yang , Chin Keong Ho , Rui Zhang , Yong Liang Guan

In this paper, we study energy-efficient resource allocation in distributed antenna system (DAS) with wireless power transfer, where time-division multiple access (TDMA) is adopted for downlink multiuser information transmission. In…

信息论 · 计算机科学 2018-10-11 Yuwen Huang , Yuan Liu , Geoffrey Ye Li

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…

信息论 · 计算机科学 2021-09-06 Li You , Yufei Huang , Di Zhang , Zheng Chang , Wenjin Wang , Xiqi Gao

In this paper power allocation in a cellular network, which transmitter uses massive multiple inputs multiple outputs (MIMO) system was studied. As circuit power consumption is increased by the number of antenna in transmitter and users,…

信号处理 · 电气工程与系统科学 2019-01-03 Saeed Sadeghi Vilni

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…

信号处理 · 电气工程与系统科学 2022-05-10 Thomas Choi , Masaaki Ito , Issei Kanno , Takeo Oseki , Kosuke Yamazaki , Andreas F. Molisch

Radio frequency (RF) wireless power transfer (WPT) is a promising technology for future wireless systems. However, the low power transfer efficiency (PTE) is a critical challenge for practical implementations. One of the main inefficiency…

信号处理 · 电气工程与系统科学 2024-11-21 Amirhossein Azarbahram , Onel L. A. López , Matti Latva-Aho

Due to the large power consumption in RF-circuitry of massive MIMO systems, practically relevant performance measures such as energy efficiency or bandwidth efficiency are neither necessarily monotonous functions of the total transmit power…

信息论 · 计算机科学 2018-02-20 Ali Bereyhi , Saba Asaad , Ralf R. Müller

In this paper, downlink secure transmission in simultaneous information and power transfer (SWIPT) system enabled with massive multiple-input multiple-output (MIMO) is studied. A base station (BS) with a large number of antennas transmits…

信息论 · 计算机科学 2020-08-12 Zahra Goli , S. Mohammad Razavizadeh , Hamed Farhadi , Tommy Svensson