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Joint-channel carrier-phase estimation can improve the performance of multichannel optical communication systems. In the case of pilot-aided estimation, the pilots are distributed over a two-dimensional channel--time symbol block that is…

信号处理 · 电气工程与系统科学 2024-01-25 Arni F. Alfredsson , Erik Agrell , Magnus Karlsson , Henk Wymeersch

Appearing on the stage quite recently, the Low Power Wide Area Networks (LPWANs) are currently getting much of attention. In the current paper we study the susceptibility of one LPWAN technology, namely LoRaWAN, to the inter-network…

网络与互联网体系结构 · 计算机科学 2017-04-17 Konstantin Mikhaylov , Juha Petajajarvi , Janne Janhunen

In multiple antenna systems employing time-division duplexing, spatial precoder design at the base station (BS) leverages channel state information acquired through uplink pilot transmission, under the assumption of channel reciprocity.…

信号处理 · 电气工程与系统科学 2020-04-24 Donatella Darsena , Giacinto Gelli , Ivan Iudice , Francesco Verde

Owning a high-end semiconductor foundry is a luxury very few companies can afford. Thus, fabless design companies outsource integrated circuit fabrication to third parties. Within foundries, rogue elements may gain access to the customer's…

密码学与安全 · 计算机科学 2022-08-31 Tiago Perez , Samuel Pagliarini

When several wireless users are sharing the spectrum, packet collision is a simple, yet widely used model for interference. Under this model, when transmitters cause interference at any of the receivers, their collided packets are discarded…

信息论 · 计算机科学 2016-11-17 Alireza Vahid , Mohammad Ali Maddah-Ali , A. Salman Avestimehr

While the millimeter-wave (mmWave) communication is robust against the conventional wiretapping attack due to its short transmission range and directivity, this paper proposes a new opportunistic wiretapping and jamming (OWJ) attack model…

密码学与安全 · 计算机科学 2022-12-09 Yuanyu Zhang , Zhumeng Zheng , Ji He , Shuangrui Zhao , Qianyue Qu , Yulong Shen , Xiaohong Jiang

Self-propagating malware (e.g., an Internet worm) exploits security loopholes in software to infect servers and then use them to scan the Internet for more vulnerable servers. While the mechanisms of worm infection and their propagation…

网络与互联网体系结构 · 计算机科学 2016-02-10 You Zhou , Yian Zhou , Shigang Chen , O. Patrick Kreidl

The paper presents a novel approach of spoofing wireless signals by using a general adversarial network (GAN) to generate and transmit synthetic signals that cannot be reliably distinguished from intended signals. It is of paramount…

信号处理 · 电气工程与系统科学 2019-05-09 Yi Shi , Kemal Davaslioglu , Yalin E. Sagduyu

This study reveals the vulnerabilities of Wireless Local Area Networks (WLAN) sensing, under the scope of joint communication and sensing (JCAS), focusing on target spoofing and deceptive jamming techniques. We use orthogonal…

密码学与安全 · 计算机科学 2025-01-14 Hasan Can Yildirim , Musa Furkan Keskin , Henk Wymeersch , Francois Horlin

Number Theoretic Transform (NTT) is the most essential component for polynomial multiplications used in lattice-based Post-Quantum Cryptography (PQC) algorithms such as Kyber, Dilithium, NTRU etc. However, side-channel attacks (SCA) and…

密码学与安全 · 计算机科学 2026-04-28 Rourab Paul , Krishnendu Guha , Amlan Chakrabarti

Wireless Sensor Networks (WSN) is an emerging technology now-a-days and has a wide range of applications such as battlefield surveillance, traffic surveillance, forest fire detection, flood detection etc. But wireless sensor networks are…

密码学与安全 · 计算机科学 2014-07-16 Deepali Virmani , Ankita Soni , Shringarica Chandel , Manas Hemrajani

The implementation of cryptographic primitives in integrated circuits (ICs) continues to increase over the years due to the recent advancement of semiconductor manufacturing and reduction of cost per transistors. The hardware implementation…

密码学与安全 · 计算机科学 2020-08-10 Ayush Jain , Ujjwal Guin

We consider that a transmitter covertly communicates with multiple receivers under the help of a friendly jammer. The messages intended for different receivers are transmitted in mutually orthogonal frequency bands. An adversary observes…

信息论 · 计算机科学 2021-03-03 Ke-Wen Huang , Hao Deng , Hui-Ming Wang

WiFi communication should be possible only between devices inside the same network. However, we find that all existing WiFi devices send back acknowledgments (ACK) to even fake packets received from unauthorized WiFi devices outside of…

网络与互联网体系结构 · 计算机科学 2023-03-28 Ali Abedi , Haofan Lu , Alex Chen , Charlie Liu , Omid Abari

When two or more users in a wireless network transmit simultaneously, their electromagnetic signals are linearly superimposed on the channel. As a result, a receiver that is interested in one of these signals sees the others as unwanted…

信息论 · 计算机科学 2011-03-01 Bobak Nazer , Michael Gastpar

Wireless information surveillance, by which suspicious wireless communications are closely monitored by legitimate agencies, is an integral part of national security. To enhance the information surveillance capability, we propose in this…

信息论 · 计算机科学 2016-12-21 Yong Zeng , Rui Zhang

We present a novel mechanism to construct a covert channel based on page faults. A page fault is an event that occurs when a process or a thread tries to access a page of memory that is not currently mapped to its address space. The kernel…

操作系统 · 计算机科学 2025-09-26 Sathvik Swaminathan

This letter studies an emerging wireless communication intervention problem at the physical layer, where a legitimate spoofer aims to spoof a malicious link from Alice to Bob, by replacing Alice's transmitted source message with its target…

信息论 · 计算机科学 2016-12-28 Jie Xu , Lingjie Duan , Rui Zhang

Wireless devices resorting to event-triggered communications have been proved to suffer critical privacy issues, due to the intrinsic leakage associated with radio-frequency (RF) emissions. In this paper, we move the attack frontier forward…

密码学与安全 · 计算机科学 2020-05-22 Gabriele Oligeri , Savio Sciancalepore , Simone Raponi , Roberto Di Pietro

With recent developments of wireless communication technologies, malicious users can use them to commit crimes or launch terror attacks, thus imposing new threats on the public security. To quickly respond to defend these attacks,…

信息论 · 计算机科学 2016-08-03 Jie Xu , Lingjie Duan , Rui Zhang