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Knowledge of channel state information (CSI) is fundamental to many functionalities within the mobile wireless communications systems. With the advance of machine learning (ML) and digital maps, i.e., digital twins, we have a big…

信号处理 · 电气工程与系统科学 2021-11-16 Brenda Vilas Boas , Wolfgang Zirwas , Martin Haardt

Channel state information (CSI) acquisition is essential for the base station (BS) to fully reap the beamforming gain in intelligent reflecting surface (IRS)-aided downlink communication systems. Recently, [1] revealed a strong correlation…

信号处理 · 电气工程与系统科学 2024-12-02 Rui Wang , Zhaorui Wang , Liang Liu , Shuowen Zhang , Shi Jin

Efficient resource allocation (RA) strategies within massive and dense Internet of Things (IoT) networks is one of the major challenges in the deployment of IoT-network based smart ecosystems involving heterogeneous power-constrained IoT…

信号处理 · 电气工程与系统科学 2023-05-30 Nirmal D. Wickramasinghe , Indrakshi Dey

To achieve higher throughput in next-generation Wi-Fi systems, a station (STA) needs to efficiently compress channel state information (CSI) and feed it back to an access point (AP). In this paper, we propose a novel deep learning…

信号处理 · 电气工程与系统科学 2025-07-16 Junyong Shin , Eunsung Jeon , Inhyoung Kim , Yo-Seb Jeon

Mobile ad hoc networks (MANETs) are self-configuring wireless networks that lack permanent infrastructure and are formed among mobile nodes on demand. Rapid node mobility results in dramatic channel variation, or fading, that degrades MANET…

网络与互联网体系结构 · 计算机科学 2012-04-27 Neil Mehta , Alexandra Duel-Hallen , Wenye Wang

In this paper, we investigate and analyze energy recycling for a reconfigurable intelligent surface (RIS)-aided wireless-powered communication network. As opposed to the existing works where the energy harvested by Internet of things (IoT)…

信息论 · 计算机科学 2022-09-28 Hao Xie , Bowen Gu , Dong Li , Zhi Lin , Yongjun Xu

Co-Channel Interference (CCI) is a fundamental problem in wireless communication networks. It is a well-studied problem in the field. As channels use the same frequency, interference in the radio waves occurs which, in turn, reduces the…

信号处理 · 电气工程与系统科学 2025-01-29 Tzalik Maimon , Shirley Alus , Gil Kedar

Accurate channel state information (CSI) is necessary for coherent detection in amplify and forward (AF) broadband cooperative communication systems. Based on the assumption of ordinary sparse channel, efficient sparse channel estimation…

信息论 · 计算机科学 2012-07-31 Guan Gui , Wei Peng

The ability of modern telecommunication systems to locate users and objects in the radio environment raises justified privacy concerns. To prevent unauthorized localization, single-antenna transmitters can obfuscate the signal by convolving…

信息论 · 计算机科学 2025-08-05 Phillip Stephan , Florian Euchner , Stephan ten Brink

In recent years, the application of artificial intelligence (AI) in wireless communications has demonstrated inherent robustness against wireless channel distortions. Most existing works empirically leverage this robustness to yield…

信息论 · 计算机科学 2025-07-09 Yangshuo He , Guanding Yu , Huaiyu Dai

We propose a WiFi Channel State Information (CSI) sensing framework for multi-station deployments that addresses two fundamental challenges in practical CSI sensing: station-wise feature missingness and limited labeled data. Feature…

机器学习 · 计算机科学 2026-03-25 Keita Kayano , Takayuki Nishio , Daiki Yoda , Yuta Hirai , Tomoko Adachi

An essential step for achieving multiplexing gain in MIMO downlink systems is to collect accurate channel state information (CSI) from the users. Traditionally, CSIs have to be collected before any data can be transmitted. Such a sequential…

网络与互联网体系结构 · 计算机科学 2017-06-01 Zhenzhi Qian , Fei Wu , Zizhan Zheng , Kannan Srinivasan , Ness B. Shroff

The objective of channel charting is to learn a virtual map of the radio environment from high-dimensional CSI that is acquired by a multi-antenna wireless system. Since, in static environments, CSI is a function of the transmitter…

信号处理 · 电气工程与系统科学 2022-06-22 Florian Euchner , Phillip Stephan , Marc Gauger , Sebastian Dörner , Stephan ten Brink

Future wireless networks require the ability to actively adjust the wireless environment to meet strict performance indicators. Reconfigurable Intelligent Surface (RIS) technology is gaining attention for its advantages of low power…

信息论 · 计算机科学 2024-10-28 De-Ming Chian , Chao-Kai Wen , Chi-Hung Wu , Fu-Kang Wang , Kai-Kit Wong

In this work, we address the relay selection problem for the wireless powered communication networks, where the relays harvest energy from the source radio frequency signals. A single source-destination pair is considered without a direct…

网络与互联网体系结构 · 计算机科学 2016-08-29 M. Majid Butt , Ioannis Krikidis , Nicola Marchetti

The basis of generating secret key from the common wireless channel at two communication parties is reciprocity. However, due to non-simultaneous measurements and unavoidable estimation error, bias always exists and key disagreement occurs.…

信息论 · 计算机科学 2019-02-20 Xinrong Guan , Ning Ding , Yueming Cai , Weiwei Yang

A novel technique is proposed which enables each transmitter to acquire global channel state information (CSI) from the sole knowledge of individual received signal power measurements, which makes dedicated feedback or inter-transmitter…

网络与互联网体系结构 · 计算机科学 2017-07-04 Chao Zhang , Vineeth Varma , Samson Lasaulce , Raphael Visoz

Commitment is an important cryptographic primitive. It is well known that noisy channels are a promising resource to realize commitment in an information-theoretically secure manner. However, oftentimes, channel behaviour may be poorly…

信息论 · 计算机科学 2021-11-17 Amitalok J. Budkuley , Pranav Joshi , Manideep Mamindlapally , Anuj Kumar Yadav

Deep learning based channel state information (CSI) feedback in frequency division duplex systems has drawn much attention in both academia and industry. In this paper, we focus on integrating the Type-II codebook in the beyond…

信息论 · 计算机科学 2023-06-01 Ke Ma , Yiliang Sang , Yang Ming , Jin Lian , Chang Tian , Zhaocheng Wang

In this work, we consider a multiple-input single-output system in which an access point (AP) performs a simultaneous wireless information and power transfer (SWIPT) to serve a user terminal (UT) that is not equipped with external power…

信息论 · 计算机科学 2016-05-19 Chen-Feng Liu , Marco Maso , Subhash Lakshminarayana , Chia-Han Lee , Tony Q. S. Quek