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相关论文: Achieving maximum energy-efficiency in multi-relay…

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This contribution presents a method of obtaining the optimal power and subcarrier allocations that maximize the energy-efficiency (EE) of a multi-user, multi-relay, orthogonal frequency division multiple access (OFDMA) cellular network.…

信息论 · 计算机科学 2014-07-30 Kent Tsz Kan Cheung , Shaoshi Yang , Lajos Hanzo

In this paper, we develop an energy efficient resource allocation scheme for orthogonal frequency division multiple access (OFDMA) networks with in-band full-duplex (IBFD) communication between the base station and user equipments (UEs)…

信息论 · 计算机科学 2019-10-09 Rojin Aslani , Mehdi Rasti , Ata Khalili

In this paper, we provide joint subcarrier assignment and power allocation schemes for quality-of-service (QoS)-constrained energy-efficiency (EE) optimization in the downlink of an orthogonal frequency division multiple access…

信息论 · 计算机科学 2016-11-01 Jie Tang , Daniel K. C. So , Emad Alsusa , Khairi Ashour Hamdi , Arman Shojaeifard , Kai-Kit Wong

We first conceive a novel transmission protocol for a multi-relay multiple-input--multiple-output orthogonal frequency-division multiple-access (MIMO-OFDMA) cellular network based on joint transmit and receive beamforming. We then address…

信息论 · 计算机科学 2015-03-04 Kent Tsz Kan Cheung , Shaoshi Yang , Lajos Hanzo

In this paper, we develop a framework to maximize the network energy efficiency (EE) by optimizing joint user-base station~(BS) association,~subchannel assignment, and power control considering an in-band full-duplex (IBFD)-enabled…

信号处理 · 电气工程与系统科学 2020-10-21 Sheyda Zarandi , Ata Khalili , Mehdi Rasti , Hina Tabassum

The energy spectral efficiency maximization (ESEM) problem of a multi-user, multi-relay, multi-cell system is considered, where all the network nodes are equipped with multi-antenna transceivers. To deal with the potentially excessive…

信息论 · 计算机科学 2016-01-26 Kent Tsz Kan Cheung , Shaoshi Yang , Lajos Hanzo

In this paper we propose resource allocation algorithm for uplink sparse code multiple access (SCMA) networks to maximize the energy efficiency (EE). Due to the joint optimization of factor graph matrix and power allocation matrix, the EE…

信号处理 · 电气工程与系统科学 2020-04-22 Samira Jaber , Wen Chen , Kunlun Wang , Jun 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

The problem of joint power and sub-channel allocation to maximize energy efficiency (EE) and spectral efficiency (SE) simultaneously in in-band full-duplex (IBFD) orthogonal frequency-division multiple access (OFDMA) network is addressed…

信息论 · 计算机科学 2020-03-02 Ata Khalili , Sheyda Zarandi , Mehdi Rasti , Ekram Hossain

An energy-efficient design is proposed under specific statistical quality-of-service (QoS) guarantees for delay-sensitive traffic in the downlink orthogonal frequency-division multiple-access (OFDMA) networks. This design is based on Wu's…

This paper investigates the energy efficiency (EE) in multiple relay aided OFDM system, where decode-and-forward (DF) relay beamforming is employed to help the information transmission. In order to explore the EE performance with user…

信息论 · 计算机科学 2015-11-25 Ke Xiong , Pingyi Fan , Yang Lu , Khaled Ben Letaief

In this paper, we propose a novel algorithm to optimize the energy-efficiency (EE) of orthogonal frequency division multiplexing-based cognitive radio systems under channel uncertainties. We formulate an optimization problem that guarantees…

信号处理 · 电气工程与系统科学 2019-02-11 Ebrahim Bedeer , Osama Amin , Octavia A. Dobre , Mohamed H. Ahmed , Kareem E. Baddour

In this paper, we study the spectral efficiency (SE) and energy efficiency (EE) of asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) for visible light communication (VLC). Firstly, we derive the…

信息论 · 计算机科学 2023-05-24 Shuai Ma , Ruixin Yang , Xiong Deng , Xintong Ling , Xun Zhang , Fuhui Zhou , Shiyin Li , Derrick Wing Kwan Ng

In this paper, we investigate the joint resource allocation and antenna selection algorithm design for uplink orthogonal frequency division multiple access (OFDMA) communication system. We propose a multi-objective optimization framework to…

信息论 · 计算机科学 2020-06-24 Ata Khalili , Derrick Wing Kwan Ng

In this paper, joint resource allocation and power control for energy efficient device-to-device (D2D) communications underlaying cellular networks are investigated. The resource and power are optimized for maximization of the energy…

信息论 · 计算机科学 2017-03-22 Yanxiang Jiang , Qiang Liu , Fuchun Zheng , Xiqi Gao , Xiaohu You

Computation-efficient resource allocation strategies are of crucial importance in mobile edge computing networks. However, few works have focused on this issue. In this letter, weighted sum computation efficiency (CE) maximization problems…

信号处理 · 电气工程与系统科学 2019-10-28 Yuhang Wu , Yuhao Wang , Fuhui Zhou , Rose Qingyang Hu

We consider two-way amplify and forward relaying, where multiple full-duplex user pairs exchange information via a shared full-duplex massive multiple-input multiple-output (MIMO) relay. Most of the previous massive MIMO relaying works…

信息论 · 计算机科学 2017-10-05 Ekant Sharma , Rohit Budhiraja , K Vasudevan , Lajos Hanzo

We consider the problem of jointly optimizing users' offloading decisions, communication and computing resource allocation in a sliced multi-cell mobile edge computing (MEC) network. We minimize the weighted sum of the gap between the…

信息论 · 计算机科学 2021-01-12 Sheyda Zarandi , Hina Tabassum

In-band full-duplex (FD) operation is practically more suited for short-range communications such as WiFi and small-cell networks, due to its current practical limitations on the self-interference cancellation. In addition, cell-free…

信号处理 · 电气工程与系统科学 2020-01-22 Hieu V. Nguyen , Van-Dinh Nguyen , Octavia A. Dobre , Shree Krishna Sharma , Symeon Chatzinotas , Björn Ottersten , Oh-Soon Shin

In this paper, we study a RAN resource-slicing problem for energy-efficient communication in an orthogonal frequency division multiple access (OFDMA) based millimeter-wave (mmWave) downlink (DL) network consisting of enhanced mobile…

信息论 · 计算机科学 2023-06-14 PraveenKumar Korrai , Eva Lagunas , Shree Krishna Sharma , Symeon Chatzinotas
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