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相关论文: Beamforming in Two-Way Fixed Gain Amplify-and-Forw…

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In this paper, we consider the relaying of orthogonal space time block codes (OSTBCs) in a two-way amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay system with estimated channel state information (CSI). A simple four…

信息论 · 计算机科学 2014-07-07 Arti M. K. , Manav R. Bhatnagar

This paper focuses on quantifying the outage performance of terahertz (THz) relaying systems. In this direction, novel closed-form expressions for the outage probability of a dual-hop relaying system, in which both the source-relay and…

信号处理 · 电气工程与系统科学 2020-07-15 Alexandros-Apostolos A. Boulogeorgos , Angeliki Alexiou

In this paper, we consider a dual-hop Multiple Input Multiple Output (MIMO) wireless relay network in the presence of imperfect channel state information (CSI), in which a source-destination pair both equipped with multiple antennas…

信号处理 · 电气工程与系统科学 2020-03-24 Zijian Wang , Wen Chen , Feifei Gao , Jun Li

Previous work on cooperative communications has concentrated primarily on the diversity benefits of such techniques. This paper, instead, considers the multiplexing benefits of cooperative communications. First, a new interpretation on the…

信息论 · 计算机科学 2009-03-16 Yijia , Fan , Chao Wang , H. Vincent Poor , John S. Thompson

Optical wireless communication (OWC) over atmospheric turbulence and pointing errors is a well-studied topic. Still, there is limited research on signal fading due to random fog in an outdoor environment for terrestrial wireless…

信息论 · 计算机科学 2021-12-28 Ziyaur Rahman , Tejas Nimish Shah , S. M. Zafaruddin , V. K. Chaubey

The high attenuation which increases as frequency increases in power line communication systems (PLC) makes achieving and sustaining high data rates over such channels a challenging task. In most communication systems, relays are normally…

信号处理 · 电气工程与系统科学 2018-06-27 Waled Gheth , Khaled M. Rabie , Bamidele Adebisi , Muhammad Ijaz , Georgina Harris , A. Alfitouri

A full-duplex two-way relay channel with multiple antennas is considered. For this three-node network, the beamforming design needs to suppress self-interference. While a traditional way is to apply zero-forcing for self-interference…

信息论 · 计算机科学 2016-10-18 Zhigang Wen , Shuai Wang , Xiaoqing Liu , Junwei Zou

This paper investigates a wireless-powered cooperative communication network consisting of a source, a destination and a multi-antenna decode-and-forward relay. We consider the relay as a wireless-powered node that has no external power…

信息论 · 计算机科学 2016-06-17 Ziyi Li , He Chen , Yifan Gu , Yonghui Li , Branka Vucetic

This paper considers a multiuser cellular two-way relay network (cTWRN) where multiple users exchange information with a base station (BS) via a relay station (RS). Each user is equipped with a single antenna, while both the BS and the RS…

信息论 · 计算机科学 2014-09-04 Z. Fang , X. Wang , X. Yuan

In this paper, the throughput of relay networks with multiple source-destination pairs under queueing constraints has been investigated for both variable-rate and fixed-rate schemes. When channel side information (CSI) is available at the…

信息论 · 计算机科学 2015-10-08 Yi Li , M. Cenk Gursoy , Senem Velipasalar

In this paper, we investigate the performance of selection cooperation in the presence of imperfect channel estimation. In particular, we consider a cooperative scenario with multiple relays and amplify-and-forward protocol over frequency…

信息论 · 计算机科学 2011-01-05 Mehdi Seyfi , Sami Muhaidat , Jie Liang

This paper reports relative performance of decode-and-forward (DF) and amplify-and-forward (AF) relaying in a multi-antenna cooperative cognitive radio network (CCRN) that supports device-to-device (D2D) communications using spectrum…

信息论 · 计算机科学 2020-07-20 Sutanu Ghosh , Tamaghna Acharya , Santi P. Maity

A general class of wireless relay networks with a single source-destination pair is considered. Intermediate nodes in the network employ an amplify-and-forward scheme to relay their input signals. In this case the overall input-output…

信息论 · 计算机科学 2011-06-02 Samar Agnihotri , Sidharth Jaggi , Minghua Chen

We analyze the performance of a system composed of two interfering point-to-point links where the transmitters can exploit a common relay to improve their individual transmission rate. When the relay uses the amplify-and-forward protocol we…

信息论 · 计算机科学 2009-04-20 Brice Djeumou , Elena Veronica Belmega , Samson Lasaulce

In this paper, we investigate the performance of bidirectional relay selection using amplify-and-forward protocol with imperfect channel state information, i.e., delay effect and channel estimation error. The asymptotic expression of…

网络与互联网体系结构 · 计算机科学 2011-12-13 Hongyu Cui , Rongqing Zhang , Lingyang Song , Bingli Jiao

In this paper, we study the interference relay-without-delay channel which is an interference channel with a relay helping the communication. We assume the relay's transmit symbol depends not only on its past received symbols but also on…

信息论 · 计算机科学 2011-08-16 Hyunseok Chang , Sae-Young Chung

This paper considers a multipair amplify-and-forward massive MIMO relaying system with low-resolution ADCs at both the relay and destinations. The channel state information (CSI) at the relay is obtained via pilot training, which is then…

信息论 · 计算机科学 2017-05-16 Chuili Kong , Caijun Zhong , Shi Jin , Sheng Yang , Hai Lin , Zhaoyang Zhang

Differential encoding and decoding can be employed to circumvent channel estimation in wireless relay networks. This article studies differential amplify-and-forward relaying using linear combining with arbitrary fixed combining weights in…

信息论 · 计算机科学 2016-11-18 M. R. Avendi , Ha H. Nguyen , Dac-Binh Ha

In this paper, we investigate the impact of correlated fading on the performance of wireless multiple access channels (MAC) in the presence and absence of side information (SI) at transmitters, where the fading coefficients are modeled…

信息论 · 计算机科学 2022-05-04 Farshad Rostami Ghadi , Wei-Ping Zhu

In this paper, we investigate an amplify-and-forward (AF) based two-way cooperative status update system, where two sources aim to exchange status updates with each other as timely as possible with the help of a relay. Specifically, the…

信息论 · 计算机科学 2020-06-18 Bohai Li , He Chen , Nikolaos Pappas , Yonghui Li