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相关论文: Opportunistic Communications in an Orthogonal Mult…

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This paper considers a multi-pair two-way amplify-and-forward relaying system, where multiple pairs of full-duplex users are served via a full-duplex relay with massive antennas, and the relay adopts maximum-ratio combining/maximum-ratio…

信息论 · 计算机科学 2016-12-15 Zhanzhan Zhang , Zhiyong Chen , Manyuan Shen , Bin Xia , Weiliang Xie , Yong Zhao

The problem of simultaneous multicasting of multiple messages with the help of a relay terminal is considered. In particular, a model is studied in which a relay station simultaneously assists two transmitters in multicasting their…

信息论 · 计算机科学 2009-02-19 Deniz Gunduz , Osvaldo Simeone , Andrea J. Goldsmith , H. Vincent Poor , Shlomo Shamai

This paper studies joint uplink (UL) and downlink (DL) resource allocation in user-centric orthogonal frequency division multiple access (OFDMA) cloud radio access network (CRAN), where the users select the distributed remote radio heads…

信息论 · 计算机科学 2019-06-21 Zehong Lin , Yuan Liu

Integrated sensing and communication (ISAC) technology is crucial for next-generation underwater networks. However, covering multiple users and targets and balancing sensing and communication performance in complex underwater acoustic (UWA)…

网络与互联网体系结构 · 计算机科学 2025-12-16 Wei Men , Longfei Zhao , Yong Liang Guan , Xiangwang Hou , Yong Ren , Dusit Niyato

We analyze fading relay networks, where a single-antenna source-destination terminal pair communicates through a set of half-duplex single-antenna relays using a two-hop protocol with linear processing at the relay level. A family of…

信息论 · 计算机科学 2016-08-14 Cemal Akçaba , Patrick Kuppinger , Helmut Bölcskei

In this paper, we study resource allocation for downlink orthogonal frequency division multiple access (OFDMA) systems with the objective to enable ultra-reliable low latency communication (URLLC). To meet the stringent delay requirements…

信息论 · 计算机科学 2019-01-18 Walid R. Ghanem , Vahid Jamali , Yan Sun , Robert Schober

Dealing with broadcast scenarios has become a relevant topic in the scientific community. Because of interference, resource management presents a challenge, specially when spatial diversity is introduced. Many researches presented…

信号处理 · 电气工程与系统科学 2020-07-17 Pol Henarejos

Wireless systems that carry delay-sensitive information (such as speech and/or video signals) typically transmit with fixed data rates, but may occasionally suffer from transmission outages caused by the random nature of the fading…

信息论 · 计算机科学 2014-04-01 Zoran Hadzi-Velkov , Nikola Zlatanov , Robert Schober

In this pair of papers (Part I and Part II in this issue), we investigate the issue of power control and subcarrier assignment in a sectorized two-cell downlink OFDMA system impaired by multicell interference. As recommended for WiMAX, we…

信息论 · 计算机科学 2009-08-28 Nassar Ksairi , Pascal Bianchi , Philippe Ciblat , Walid Hachem

This paper focuses on energy recycling in full-duplex (FD) relaying multiple-input-multiple-output orthogonal frequency division multiplexing (OFDM) communication. The loop self-interference (SI) due to full-duplexing is seen as an…

信息论 · 计算机科学 2019-03-26 Ali A. Nasir , H. D. Tuan , T. Q. Duong , H. V. Poor

In this paper, we study power allocation for secure communication in a multiuser multiple-input single-output (MISO) downlink system with simultaneous wireless information and power transfer. The receivers are able to harvest energy from…

信息论 · 计算机科学 2013-07-30 Derrick Wing Kwan Ng , Lin Xiang , Robert Schober

In this paper, we study resource allocation for multiuser multiple-input single-output secondary communication systems with multiple system design objectives. We consider cognitive radio networks where the secondary receivers are able to…

信息论 · 计算机科学 2015-04-24 Derrick Wing Kwan Ng , Ernest S. Lo , Robert Schober

We envision a scenario of opportunistic spectrum access among multiple links when the available spectrum is not contiguous due to the presence of external interference sources. Non-contiguous Orthogonal Frequency Division Multiplexing…

网络与互联网体系结构 · 计算机科学 2015-05-05 Ratnesh Kumbhkar , Tejashri Kuber , Narayan B. Mandayam , Ivan Seskar

This paper considers orthogonal frequency division multiple access systems with simultaneous wireless information and power transfer. We study the resource allocation algorithm design for maximization of the energy efficiency of data…

信息论 · 计算机科学 2016-11-17 Derrick Wing Kwan Ng , Ernest S. Lo , Robert Schober

We analyze the problem of distributed power allocation for orthogonal multiple access channels by considering a continuous non-cooperative game whose strategy space represents the users' distribution of transmission power over the network's…

计算机科学与博弈论 · 计算机科学 2015-03-19 Panayotis Mertikopoulos , Elena V. Belmega , Aris L. Moustakas , Samson Lasaulce

In this paper, we address the power allocation problem for a decode and forward (DF) relay system, where a massive multiple-input-multiple-output (mMIMO) multi-carrier (MC) base station (BS) node communicates with a MC single antenna node…

信息论 · 计算机科学 2019-08-01 Vimal Radhakrishnan , Omid Taghizadeh , Rudolf Mathar

In this paper, the problem of joint radio and computation resource management over multi-channel is investigated for multi-user partial offloading mobile edge computing (MEC) system. The target is to minimize the weighted sum of energy…

信息论 · 计算机科学 2021-05-04 Bizheng Liang , Rongfei Fan , Han Hu

In this paper, we present a framework for distributively optimizing the transmission strategies of secondary users in an ad hoc cognitive radio network. In particular, the proposed approach allows secondary users to set their transmit…

网络与互联网体系结构 · 计算机科学 2016-02-05 Orestis Georgiou , Mohammud Z. Bocus , Shanshan Wang

This paper studies the information-theoretic limits of a secondary or cognitive radio (CR) network under spectrum sharing with an existing primary radio network. In particular, the fading cognitive multiple-access channel (C-MAC) is first…

信息论 · 计算机科学 2016-11-18 Rui Zhang , Shuguang Cui , Ying-Chang Liang

This work focuses on studying the half-duplex (HD) relaying in the Multiple Access Relay Channel (MARC) and the Compound Multiple Access Channel with a Relay (cMACr). A generalized Quantize-and-Forward (GQF) has been proposed to establish…

信息论 · 计算机科学 2014-01-15 Ming Lei , Mohammad Reza Soleymani