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相关论文: Some Basic Radio System OPSEC Considerations

200 篇论文

Communications based solely on radio frequency (RF) networks cannot provide adequate quality of service for the rapidly growing demands of wireless connectivity. Since devices operating in the optical spectrum do not interfere with those…

网络与互联网体系结构 · 计算机科学 2018-10-08 Mostafa Zaman Chowdhury , Md. Tanvir Hossan , Moh. Khalid Hasan , Yeong Min Jang

We assume that a buffer-aided transmitter communicates with a receiving node in the presence of an attacker. We investigate the impact of a radio-frequency energy-harvesting attacker that probabilistically operates as a jammer or an…

信息论 · 计算机科学 2017-06-20 Ahmed El Shafie , Kamel Tourki , Zhiguo Ding , Naofal Al-Dhahir

We discuss quantitatively the complementarity of information transmitted by a quantum system prepared in a basis state in one out of several different mutually unbiased bases (MUBs). We obtain upper bounds on the information available to a…

量子物理 · 物理学 2009-11-13 Shengjun Wu , Sixia Yu , Klaus Mølmer

In a typical multi-standard military communication receiver, fast and reliable spectrum sensing unit is required to extract the information of multiple channels (frequency bands) present in a wideband input signal. In this paper, an energy…

信息论 · 计算机科学 2016-08-16 S. J. Darak , A. P. Vinod , E. M-K. Lai

The meaning and its possible applications of post-selected weak amplification in optomechanical system is concisely reviewed.

量子物理 · 物理学 2015-09-04 Tao Wang , Gang Li

This article re-examines the fundamental notion of interference in wireless networks by contrasting traditional approaches to new concepts that handle interference in a creative way. Specifically, we discuss the fundamental limits of the…

The paper introduces a simple quantum model to calculate in a general way allowed frequencies and energy levels of the anharmonic oscillator. The theoretical basis of the approach has been introduced in two early papers aimed to infer the…

量子物理 · 物理学 2011-05-19 Sebastiano Tosto

We analyze the security and reliability of a recently proposed class of public-key cryptosystems against attacks by unauthorized parties who have acquired partial knowledge of one or more of the private key components and/or of the…

无序系统与神经网络 · 物理学 2009-11-10 N. S. Skantzos , D. Saad , Y. Kabashima

High-energy and radio emission mechanisms for pulsars are reviewed. The source region for high energy emission remains uncertain. Two preferred radio emission mechanism are identified. Some difficulties may be resolved by appealing to…

天体物理学 · 物理学 2007-05-23 Don Melrose

Odd Radio Circles (ORCs) are unexpected faint circles of diffuse radio emission discovered in recent wide deep radio surveys. They are typically about one arcmin in diameter, and may be spherical shells of synchrotron emission about a…

星系天体物理 · 物理学 2021-11-03 Ray P. Norris , Evan Crawford , Peter Macgregor

Dissipation is a ubiquitous phenomenon in dynamical systems encountered in nature because no finite system is fully isolated from its environment. In optical systems, a key challenge facing any technological application has traditionally…

光学 · 物理学 2014-10-20 Konstantinos G. Makris , Li Ge , Hakan E. Tureci

A simple unbreakable cipher system is presented which uses the concept of "pseudo-bits" that has never been used in either classical or quantum cryptography.

综合物理 · 物理学 2007-05-23 Arindam Mitra

This paper focuses on the design of medium access control protocols for cognitive radio networks. The scenario in which a single cognitive user wishes to opportunistically exploit the availability of empty frequency bands within parts of…

信息论 · 计算机科学 2008-02-20 Lifeng Lai , Hesham El Gamal , Hai Jiang , H. Vincent Poor

Expanded lecture notes. Preliminary version, comments are welcome.

组合数学 · 数学 2018-05-31 Bogdan Nica

It has been found that the signal can be encoded in the choice of the measurement basis of one of the communicating parties, while the outcomes of the measurement are irrelevant for the communication and therefore may be discarded. The…

量子物理 · 物理学 2015-06-17 Dong Xie , An Min Wang

This contribution highlights some concepts and aspects of Petri nets that are frequently neglected, but that the authors consider important or interesting, or that Carl Adam Petri emphasized.

软件工程 · 计算机科学 2024-08-28 Wolfgang Reisig , Peter Fettke

Open Radio Access Network (O-RAN), a novel architecture that separates the traditional radio access network (RAN) into multiple disaggregated components, leads a revolution in the telecommunication ecosystems. Compared to the traditional…

网络与互联网体系结构 · 计算机科学 2023-11-07 Yi-Zih Chen , Terrance Yu-Hao Chen , Po-Jung Su , Chi-Ting Liu

Cognitive Radio generates a big interest as a key cost-effective solution for the underutilization of frequency spectrum in legacy communication networks. The objective of this work lies in conducting a performance evaluation of the…

网络与互联网体系结构 · 计算机科学 2012-06-04 Abdelaali Chaoub , Elhassane Ibn-Elhaj

We present a statistical analysis of a mixed radio-frequency (RF)-visible light communications (VLC) relaying system, where outdoor millimeter wave based RF links are utilized to provide backhaul connectivity for indoor VLC broadcasting.…

网络与互联网体系结构 · 计算机科学 2022-09-23 Milica I. Petkovic , Aleksandra Cvetkovic , Milan Narandzic , Dejan Vukobratovic

Low-power wireless communication is a central building block of Cyber-physical Systems and the Internet of Things. Conventional low-power wireless protocols make avoiding packet collisions a cornerstone design choice. The concept of…

网络与互联网体系结构 · 计算机科学 2020-01-27 Marco Zimmerling , Luca Mottola , Silvia Santini