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Remote Keyless Entry (RKE) systems have become a standard feature in modern vehicles, yet their unidirectional fixed-frequency radio communication renders them vulnerable to replay attacks, impersonation attacks, cryptanalysis, and…

密码学与安全 · 计算机科学 2025-04-15 Jingjing Guo , Bo Tang , Jiayuan Xu , Qingyi Li , Yuyuan Qin , Xinghua Li

We study medium access in FMCW radar networks. We assume that all the radars use same parameters, e.g., chirp duration, chirp slope, cutoff frequency, number of chirps per packet, etc, and propose and analyze slotted ALOHA and CSMA…

系统与控制 · 电气工程与系统科学 2022-01-26 Haritha K , Vineeth Bala Sukumaran , Chandramani Singh

Rate-Splitting Multiple Access (RSMA) has been recognized as a promising multiple access technique for future wireless communication systems. Recent research demonstrates that RSMA can maintain its superiority without relying on Successive…

信息论 · 计算机科学 2025-07-16 Sibo Zhang , Bruno Clerckx , David Vargas

Next-generation internet-of-things (IoT) networks require extremely low latency, complexity, and collision probability. We introduce the novel partial-information multiple access (PIMA) scheme, a semi-grant-free (GF) coordinated random…

信息论 · 计算机科学 2023-07-28 Alberto Rech , Stefano Tomasin , Lorenzo Vangelista , Cristina Costa

We consider multiple access with re-transmission diversity (RTxD) based on a hybrid automatic request (HARQ) protocol with incremental redundancy (IR) in this paper. In order to mitigate multiple access interference (MAI), we employ…

信息论 · 计算机科学 2020-10-14 Jinho Choi

Independent Component Analysis (ICA) is a dimensionality reduction technique that can boost efficiency of machine learning models that deal with probability density functions, e.g. Bayesian neural networks. Algorithms that implement…

机器学习 · 计算机科学 2017-07-10 Mahdi Nazemi , Shahin Nazarian , Massoud Pedram

This paper presents an echo-side modulation framework for integrated sensing and communication (ISAC) systems. A space-time reconfigurable intelligent surface (ST-RIS) impresses a continuous-phase modulation onto the radar echo, enabling…

信号处理 · 电气工程与系统科学 2026-01-15 Marouan Mizmizi , Stefano Tebaldini , Umberto Spagnolini

Fast identification of new network attack patterns is crucial for improving network security. Nevertheless, identifying an ongoing attack in a heterogeneous network is a non-trivial task. Federated learning emerges as a solution to…

密码学与安全 · 计算机科学 2022-05-25 Helio N. Cunha Neto , Ivana Dusparic , Diogo M. F. Mattos , Natalia C. Fernandes

In low power wireless sensor networks, MAC protocols usually employ periodic sleep/wake schedule to reduce idle listening time. Even though this mechanism is simple and efficient, it results in high end-to-end latency and low throughput. On…

网络与互联网体系结构 · 计算机科学 2010-08-18 Behnam Dezfouli , Marjan Radi , Shukor Abd Razak

In this article, we propose an improved multiple feedback successive interference cancellation (IMF-SIC) algorithm for symbol vector detection in multiple-input multiple-output (MIMO) spatial multiplexing systems. The multiple feedback (MF)…

信息论 · 计算机科学 2015-09-03 Manish Mandloi , Mohammed Azahar Hussain , Vimal Bhatia

In this letter, we consider the scenario of decode-and-forward relay network with reconfigurable intelligent surface (RIS)-assisted source and relays in the presence of interference. We derive approximate closed-form expression for the…

信息论 · 计算机科学 2021-01-08 Anas M. Salhab , Liang Yang

Automatic Repeat Request (ARQ) is an effective technique for reliable transmission of packets in wireless networks. In ARQ, however, only a few erroneous bits in a packet will cause the entire packet to be discarded at the receiver. In this…

信息论 · 计算机科学 2010-04-16 Zhifeng Luo , Zhu Han , Albert Kai-sun Wong , Shuisheng Qiu

By activating blocked users and altering successive interference cancellation (SIC) sequences, reconfigurable intelligent surfaces (RISs) become promising for enhancing non-orthogonal multiple access (NOMA) systems. The downlink RIS-aided…

信息论 · 计算机科学 2020-08-20 Chao Zhang , Wenqiang Yi , Yuanwei Liu

In this letter, a pinching antenna (PA)-aided scheme for establishing a secure integrated sensing and communication system (ISAC) is investigated. The underlying system comprises a dual-functional radar communication (DFRC) base station…

信息论 · 计算机科学 2025-07-18 Elmehdi Illi , Marwa Qaraqe , Ali Ghrayeb

Maximizing the tag reading rate of a reader is one of the most important design objectives in RFID systems as the tag reading rate is inversely proportional to the time required to completely read all the tags within the reader's radio…

网络与互联网体系结构 · 计算机科学 2013-12-02 Subodh Pudasaini , Seokjoo Shin , Kyung Sup Kwak

We study coded multichannel random access schemes for ultra-reliable low-latency uplink transmissions. We concentrate on non-orthogonal access in the frequency domain, where users transmit over multiple orthogonal subchannels and inter-user…

信息论 · 计算机科学 2019-05-06 Christopher Boyd , Radosław Kotaba , Olav Tirkkonen , Petar Popovski

In recent cyber attacks, credential theft has emerged as one of the primary vectors of gaining entry into the system. Once attacker(s) have a foothold in the system, they use various techniques including token manipulation to elevate the…

密码学与安全 · 计算机科学 2022-11-30 Jaimandeep Singh , Chintan Patel , Naveen Kumar Chaudhary

In this paper, a simple variation of classical Slotted Aloha is introduced and analyzed. The enhancement relies on adding multiple receivers that gather different observations of the packets transmitted by a user population in one slot. For…

网络与互联网体系结构 · 计算机科学 2014-01-16 Andrea Munari , Michael Heindlmaier , Gianluigi Liva , Matteo Berioli

This paper investigates an intelligent reflecting surface (IRS) aided wireless federated learning (FL) system, where an access point (AP) coordinates multiple edge devices to train a machine leaning model without sharing their own raw data.…

信号处理 · 电气工程与系统科学 2025-04-01 Guangji Chen , Jun Li , Qingqing Wu , Yiyang Ni , Meng Hua

This paper exploits the potential of reconfigurable intelligent surface (RIS) to improve radar sensing in a non-orthogonal multiple access (NOMA) empowered integrated sensing and communication (NOMA-ISAC) network. The objective is to…

信息论 · 计算机科学 2022-09-29 Jiakuo Zuo , Yuanwei Liu