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相关论文: Exploiting Constructive Interference for Backscatt…

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In this paper, we firstly exploit the inter-user interference (IUI) and inter-cell interference (ICI) as useful references to develop a robust transceiver design based on interference alignment for a downlink multi-user multi-cell…

信息论 · 计算机科学 2017-04-18 Xianzhong Xie , Helin Yang , Athanasios V. Vasilakos

In this paper, we investigate the issue of uplink integrated sensing and communication (ISAC) in 6G wireless networks where the sensing echo signal and the communication signal are received simultaneously at the base station (BS). To…

信息论 · 计算机科学 2024-03-05 Qiao Qi , Xiaoming Chen , Caijun Zhong , Chau Yuen , Zhaoyang Zhang

This paper investigates the integrated sensing and communication (ISAC) in vehicle-to-infrastructure (V2I) networks. To realize ISAC, an effective beamforming design is essential which however, highly depends on the availability of accurate…

信号处理 · 电气工程与系统科学 2022-04-28 Chang Liu , Weijie Yuan , Shuangyang Li , Xuemeng Liu , Husheng Li , Derrick Wing Kwan Ng , Yonghui Li

Given the proven benefits cell densification brings in terms of capacity and coverage, it is certain that 5G networks will be even more heterogeneous and dense. However, as smaller cells are introduced in the network, interference will…

网络与互联网体系结构 · 计算机科学 2017-08-11 Zana Limani Fazliu , Carla-Fabiana Chiasserini , Gian Michele Dell'Aera , Enver Hamiti

Existing studies about ambient backscatter communication mostly assume flat-fading channels. However, frequency-selective channels widely exist in many practical scenarios. Therefore, this paper investigates ambient backscatter…

信息论 · 计算机科学 2019-01-03 Chong Zhang , Yao Qin , Gongpu Wang , Ruisi He , Rongfei Fan

We introduce a novel system setup where a backscatter device operates in the presence of an intelligent reflecting surface (IRS). In particular, we study the bistatic backscatter communication (BackCom) system assisted by an IRS. The phase…

信息论 · 计算机科学 2020-09-16 Xiaolun Jia , Jun Zhao , Xiangyun Zhou , Dusit Niyato

One of the promising technologies for LTE Evolution is full-duplex radio, an innovation is expected to double the spectral efficiency. To realize full-duplex in practice, the main challenge is overcoming self-interference, and to do so,…

信息论 · 计算机科学 2017-02-16 Min Soo Sim , MinKeun Chung , Dongkyu Kim , Jaehoon Chung , Dong Ku Kim , Chan-Byoung Chae

We address physical layer security in distributed antenna (DA) systems, where eavesdroppers (Eves) can intercept the information transmitted for the intended receiver (IR). To realize a user-centric, power-efficient and physical layer…

信号处理 · 电气工程与系统科学 2018-12-13 Zhongxiang Wei , Christos Masouros

Interference Alignment (IA) is technique that, in a large sense, makes use of the increasing signal dimensions available in the system through MIMO and OFDM technologies in order to globally reduce the interference suffered by users in a…

网络与互联网体系结构 · 计算机科学 2016-11-28 Yasser Fadlallah , Paul Ferrand , Leonardo Cardoso , Jean-Marie Gorce

Ambient backscatter communication (AmBC) over orthogonal-frequency-division-multiplexing (OFDM) signals has recently been proposed as an appealing technique for low power Internet-of-Things (IoT) applications. The special spectrum structure…

信号处理 · 电气工程与系统科学 2020-12-09 Mahyar Nemati , Morteza Soltani , Jie Ding , Jinho Choi

The exploitation of interference in a constructive manner has recently been proposed for the downlink of multiuser, multi-antenna transmitters. This novel linear precoding technique, herein referred to as constructive interference zero…

信息论 · 计算机科学 2013-04-01 Dimitrios Christopoulos , Symeon Chatzinotas , Ioannis Krikidis , Bjorn Ottersten

Ambient backscatter communication (BackCom) is faced with the challenge that a single BackCom device can occupy multiple orthogonal resource blocks unintentionally. As a result, in order to avoid co-channel interference, a conventional…

信息论 · 计算机科学 2021-06-01 Zhiguo Ding , H. Vincent Poor

Integrated sensing and communication (ISAC) systems potentially encounter significant performance degradation in densely obstructed urban and non-line-of-sight scenarios, thus limiting their effectiveness in practical deployments. To deal…

密码学与安全 · 计算机科学 2025-07-15 Yifan Zhang , Yu Bai , Riku Jantti , Zheng Yan , Christos Masouros , Zhu Han

This article targets at unlocking the potentials of a class of prominent generative artificial intelligence (GAI) method, namely diffusion model (DM), for mobile communications. First, a DM-driven communication architecture is proposed,…

信号处理 · 电气工程与系统科学 2024-10-22 Xiaoxia Xu , Xidong Mu , Yuanwei Liu , Hong Xing , Yue Liu , Arumugam Nallanathan

Ambient backscatter communication technology has been introduced recently, and is then quickly becoming a promising choice for self-sustainable communication systems as an external power supply or a dedicated carrier emitter is not…

网络与互联网体系结构 · 计算机科学 2017-09-28 Xiao Lu , Dusit Niyato , Hai Jiang , Dong In Kim , Yong Xiao , Zhu Han

We consider a joint communication and sensing problem over an optical link in which a low-power transmitter simultaneously communicates with a receiver and identifies the range of a defect producing a backscattered signal. We model the…

量子物理 · 物理学 2026-05-19 Tuna Erdoğan , Shi-Yuan Wang , Shang-Jen Su , Matthieu Bloch

Future wireless networks targeted for improving spectral and energy efficiency, are expected to simultaneously provide sensing functionality and support low-power communications. This paper proposes a novel net-zero integrated sensing and…

信号处理 · 电气工程与系统科学 2025-03-04 Yu Zhang , Tongyang Xu , Christos Masouros , Zhu Han

This paper investigates task-oriented communication for multi-device cooperative edge inference, where a group of distributed low-end edge devices transmit the extracted features of local samples to a powerful edge server for inference.…

信号处理 · 电气工程与系统科学 2023-09-13 Jiawei Shao , Yuyi Mao , Jun Zhang

It is known that interference alignment (IA) plays an important role in improving the degree of freedom (DoF) of multi-input and multi-output (MIMO) systems. However, most of the traditional IA schemes suffer from the high computational…

信息论 · 计算机科学 2021-06-25 Jingfu Li , Wenjiang Feng , F. Richard Yu , Weiheng Jiang

In this letter, we consider a wireless-powered backscatter communication (WP-BackCom) network, where the transmitter first harvests energy from a dedicated energy RF source in the sleep state, and then backscatters information and harvests…

信息论 · 计算机科学 2019-06-04 Yinghui Ye , Liqin Shi , Rose Hu , Guangyue Lu