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相关论文: Full-Duplex Radio for Uplink/Downlink Wireless Acc…

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In this paper, an active intelligent omni-surface (A-IOS) is deployed to aid uplink transmissions in a non-orthogonal multiple access (NOMA) system. In order to shelter the covert signal embedded in the superposition transmissions, a…

We propose a novel framework for optimizing antenna parameter settings in a heterogeneous cellular network. We formulate an optimization problem for both coverage and capacity - in both the downlink (DL) and uplink (UL) - which configures…

信号处理 · 电气工程与系统科学 2022-10-31 Ezgi Tekgul , Thomas Novlan , Salam Akoum , Jeffrey G. Andrews

In this paper, we study a X-duplex relay system with one source, one amplify-and-forward (AF) relay and one destination, where the relay is equipped with a shared antenna and two radio frequency (RF) chains used for transmission or…

网络与互联网体系结构 · 计算机科学 2017-01-23 Shuai Li , Mingxin Zhou , Jianjun Wu , Lingyang Song , Yonghui Li , Hongbin Li

This paper investigates the network-assisted full-duplex (NAFD) cell-free millimeter-wave (mmWave) networks, where the distribution of the transmitting access points (T-APs) and receiving access points (R-APs) across distinct geographical…

信息论 · 计算机科学 2024-04-02 Qingrui Fan , Yu Zhang , Jiamin Li , Dongming Wang , Hongbiao Zhang , Xiaohu You

Drone-mounted base stations (DBSs) are promising solutions to provide ubiquitous connections to users and support many applications in the fifth generation of mobile networks while full duplex communications has the potential to improve the…

网络与互联网体系结构 · 计算机科学 2019-11-01 Liang Zhang , Nirwan Ansari

In this paper, we consider a full-duplex (FD) amplify-and-forward (AF) relay system and optimize its power allocation and relay location to minimize the system symbol error rate (SER). We first derive the asymptotic expressions of the…

信息论 · 计算机科学 2017-03-22 Shuai Li , Kun Yang , Mingxin Zhou , Jianjun Wu , Lingyang Song , Yonghui Li , Hongbin Li

This paper investigates the passive beamforming and deployment design for an intelligent reflecting surface (IRS) aided full-duplex (FD) wireless system, where an FD access point (AP) communicates with an uplink (UL) user and a downlink…

信息论 · 计算机科学 2022-10-17 Yunlong Cai , Ming-Min Zhao , Kaidi Xu , Rui Zhang

This paper is concerned with the proportional fairness (PF) of the spectral efficiency (SE) maximization of uplinks in a cell-free (CF) massive multiple-input multiple-output (MIMO) system in which a large number of single-antenna access…

信息论 · 计算机科学 2021-10-18 Viet Quoc Pham , Ha Hoang Kha , Le Ty Khanh

Full-duplex (FD) systems have emerged as an es- sential enabling technology to further increase the data rate of wireless communication systems. The key idea of FD is to serve multiple users over the same bandwidth with a base station (BS)…

信息论 · 计算机科学 2017-02-07 Van-Dinh Nguyen , Hieu V. Nguyen , Chuyen T. Nguyen , Oh-Soon Shin

The use of in-band full-duplex (FD) enables nodes to simultaneously transmit and receive on the same frequency band, which challenges the traditional assumption in wireless network design. The full-duplex capability enhances spectral…

In this letter we consider emulation of a Full Duplex (FD) cellular base station (BS) by using two spatially separated and coordinated half duplex (HD) BSs. The proposed system is termed CoMPflex (CoMP for In-Band Wireless Full Duplex) and…

网络与互联网体系结构 · 计算机科学 2015-11-03 Henning Thomsen , Petar Popovski , Elisabeth de Carvalho , Nuno K. Pratas , Dong Min Kim , Federico Boccardi

In this letter, we proposed a shared-antenna full-duplex massive MIMO model for the multiuser MIMO system. This model exploits a single antenna array at the base station (BS) to transmit and receive the signals simultaneously. It has the…

信息论 · 计算机科学 2015-10-02 Pengbo Xing , Ju Liu , Chao Zhai , Xinhua Wang , Lina Zheng

We study opportunistic scheduling and the sum capacity of cellular networks with a full-duplex multi-antenna base station and a large number of single-antenna half-duplex users. Simultaneous uplink and downlink over the same band results in…

信息论 · 计算机科学 2016-11-17 Can Karakus , Suhas Diggavi

In this paper, we present an Integrated Sensing and Communications (ISAC) system enabled by in-band Full Duplex (FD) radios, where a massive Multiple-Input Multiple-Output (MIMO) base station equipped with hybrid Analog and Digital (A/D)…

信息论 · 计算机科学 2022-05-18 Md Atiqul Islam , George C. Alexandropoulos , Besma Smida

Security is a critical issue in full duplex (FD) communication systems due to the broadcast nature of wireless channels. In this paper, joint design of information and artificial noise beamforming vectors is proposed for the FD simultaneous…

网络与互联网体系结构 · 计算机科学 2018-01-09 Yanjie Dong , Ahmed El Shafie , Md. Jahangir Hossain , Julian Cheng , Naofal Al-Dhahir , Victor C. M. Leung

Recent advances in self-interference cancellation enable radios to transmit and receive on the same frequency at the same time. Such a full duplex radio is being considered as a potential candidate for the next generation of wireless…

信息论 · 计算机科学 2016-07-19 Sanjay Goyal , Carlo Galiotto , Nicola Marchetti , Shivendra Panwar

Different from conventional reconfigurable intelligent surfaces (RIS), a recent innovation called simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) has emerged, aimed at achieving complete 360-degree…

信息论 · 计算机科学 2023-09-27 Abdelhamid Salem , Kai-Kit Wong , Chan-Byoung Chae , Yangyang Zhang

In this paper, we formulate two multi-objective optimization problems (MOOPs) in orthogonal frequency-division multiple access (OFDMA)-based in-band full-duplex (IBFD) wireless communications.~The aim of this study is to exploit the…

信息论 · 计算机科学 2020-07-29 Ata Khalili , Mohammad Robat Mili , Derrick Wing Kwan Ng

In this paper, we study a three-node full-duplex network, where a base station is engaged in simultaneous up- and downlink communication in the same frequency band with two half-duplex mobile nodes. To reduce the impact of inter- node…

信息论 · 计算机科学 2014-05-15 Jingwen Bai , Ashutosh Sabharwal

Massive Multiple-Input Multiple-Output (massive MIMO) is a variant of multi-user MIMO in which the number of antennas at each Base Station (BS) is very large and typically much larger than the number of users simultaneously served. Massive…

信息论 · 计算机科学 2017-08-16 Mahdi Barzegar Khalilsarai , Saeid Haghighatshoar , Giuseppe Caire