2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008)最新文献_第2页

Interference Mitigation In Wireless Mesh Networks Through STDMA Wormhole Switching 通过STDMA虫洞交换的无线网状网络干扰抑制

2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008) Pub Date : 2008-05-15 DOI: 10.1109/CROWNCOM.2008.4562517

R. McTasney, D. Grunwald, D. Sicker

引用次数: 3

Local Independent Control of Cognitive Radio Networks 认知无线电网络的局部独立控制

2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008) Pub Date : 2008-05-15 DOI: 10.1109/CROWNCOM.2008.4562476

C. Doerr, D. Grunwald, D. Sicker

引用次数: 13

Security in Cognitive Radio Networks: Threats and Mitigation 认知无线网络的安全:威胁与缓解

2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008) Pub Date : 2008-05-15 DOI: 10.1109/CROWNCOM.2008.4562534

T. Clancy, Nate Goergen

{"title":"Security in Cognitive Radio Networks: Threats and Mitigation","authors":"T. Clancy, Nate Goergen","doi":"10.1109/CROWNCOM.2008.4562534","DOIUrl":"https://doi.org/10.1109/CROWNCOM.2008.4562534","url":null,"abstract":"This paper describes a new class of attacks specific to cognitive radio networks. Wireless devices that can learn from their environment can also be taught things by malicious elements of their environment. By putting artificial intelligence in charge of wireless network devices, we are allowing unanticipated, emergent behavior, fitting a perhaps distorted or manipulated level of optimality. The state space for a cognitive radio is made up of a variety of learned beliefs and current sensor inputs. By manipulating radio sensor inputs, an adversary can affect the beliefs of a radio, and consequently its behavior. In this paper we focus primarily on PHY-layer issues, describing several classes of attacks and giving specific examples for dynamic spectrum access and adaptive radio scenarios. These attacks demonstrate the capabilities of an attacker who can manipulate the spectral environment when a radio is learning. The most powerful of which is a self-propagating AI virus that could interactively teach radios to become malicious. We then describe some approaches for mitigating the effectiveness of these attacks by instilling some level of \"common sense\" into radio systems, and requiring learned beliefs to expire and be relearned. Lastly we provide a road-map for extending these ideas to higher layers in the network stack.","PeriodicalId":409408,"journal":{"name":"2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131657959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 390

Dynamic Spectrum Assignment and Access Scenarios, System Architecture, Functional Architecture and Procedures for IEEE P1900.4 Management System IEEE P1900.4管理系统的动态频谱分配和接入场景、系统架构、功能架构和过程

2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008) Pub Date : 2008-05-15 DOI: 10.1109/CROWNCOM.2008.4562487

S. Filin, K. Ishizu, H. Murakami, H. Harada, Goh Miyamoto, H. Tran, S. Kato, M. Hasegawa

引用次数: 18

Nonparametric Cyclic Correlation Based Detection for Cognitive Radio Systems 基于非参数循环相关的认知无线电系统检测

2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008) Pub Date : 2008-05-15 DOI: 10.1109/CROWNCOM.2008.4562527

J. Lundén, S. Kassam, V. Koivunen

引用次数: 28

Adaptive Two-Dimensional Channel Estimation Scheme for OFDM Systems OFDM系统的自适应二维信道估计方法

2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008) Pub Date : 2008-05-15 DOI: 10.1109/CROWNCOM.2008.4562554

Chia-Horng Liu

{"title":"Adaptive Two-Dimensional Channel Estimation Scheme for OFDM Systems","authors":"Chia-Horng Liu","doi":"10.1109/CROWNCOM.2008.4562554","DOIUrl":"https://doi.org/10.1109/CROWNCOM.2008.4562554","url":null,"abstract":"This paper presents an adaptive low complexity channel estimation scheme for orthogonal frequency division multiplexing (OFDM) systems in the time-varying multipath fading channels. The proposed scheme is designed based on the pilots, which are arranged at different locations for different OFDM symbols. Based on the proposed channel estimation scheme, the channel frequency response of the current OFDM symbol is estimated from the current and neighboring pilots and no addition or multiplication is required. It is shown that the feasibility of the proposed scheme depends on the characteristics of the channels. We also analyze the performance of the proposed channel estimation scheme in the time-varying fading channels. Computer simulations are conducted to evaluate the performance of the proposed scheme. The simulation results are also compared with the ML algorithm and the system with ideal channel information (ICI). It is shown by the computer simulations that the performance of the proposed scheme is close to the ML algorithm in the slow fading channel. The implementation complexity is also discussed in this paper. It is shown that the complexity of the proposed channel estimation scheme is less than the linear interpolation and ML algorithm. Therefore, it is suitable for wireless local area network (WLAN) and wireless metropolitan area network (WMAN) applications.","PeriodicalId":409408,"journal":{"name":"2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130446635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Cognitive Frequency Hopping 认知跳频

2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008) Pub Date : 2008-05-15 DOI: 10.1109/CROWNCOM.2008.4562466

Rongxin Zhi, Luyong Zhang, Zheng Zhou

引用次数: 10

Spectrum pool reassignment for wireless multi-hop relay systems 无线多跳中继系统的频谱池重新分配

2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008) Pub Date : 2008-05-15 DOI: 10.1109/CROWNCOM.2008.4562547

A. Pandharipande, Chin Keong Ho

引用次数: 5

Cognitive Radio Prototyping 认知无线电原型

2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008) Pub Date : 2008-05-15 DOI: 10.1109/CROWNCOM.2008.4562481

P. Jung, A. Vießmann, C. Spiegel, A. Burnic, Z. Bai, G. Bruck, K. Statnikov, Andreas Waadt, Shangbo Wang, X. Popon, Rafael Rodriguez Velilla, H. Saarnisaari, M. Alles, T. Brack, F. Kienle, F. Berens, S. Rotolo, F. Scalise, Norbert Wehn

{"title":"Cognitive Radio Prototyping","authors":"P. Jung, A. Vießmann, C. Spiegel, A. Burnic, Z. Bai, G. Bruck, K. Statnikov, Andreas Waadt, Shangbo Wang, X. Popon, Rafael Rodriguez Velilla, H. Saarnisaari, M. Alles, T. Brack, F. Kienle, F. Berens, S. Rotolo, F. Scalise, Norbert Wehn","doi":"10.1109/CROWNCOM.2008.4562481","DOIUrl":"https://doi.org/10.1109/CROWNCOM.2008.4562481","url":null,"abstract":"Future wireless systems have been evolving toward a broadband and open architecture for efficient multi-service operation, which will have a great impact on the terminal and infrastructure component design methodology for supporting multiple radio schemes. Cooperation in wireless networks, requiring cognitive radio implementations, will facilitate a new dimension in the evolution of multimedia communications. The growing price pressure requires ever increasing high levels of integration efficiency, of flexibility and of future proofness at the same time, setting out in the digital baseband domain. In this communication, the authors will illustrate a platform based prototyping process, setting out from the paradigm developed in the IST-27960 STREP URANUS (UNIVERSAL RADIO-LINK PLATFORM FOR EFFICIENT USER-CENTRIC ACCESS). URANUS investigates the design of a universal radio link platform able to be incorporated in any existing proprietary and standardized wireless system in a seamless way, to ease the introduction of future personalized communications and reconfigurable air interfaces.","PeriodicalId":409408,"journal":{"name":"2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121739934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

From Maxwell's Equations to Cognitive Radio 从麦克斯韦方程到认知无线电

2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008) Pub Date : 2008-05-15 DOI: 10.1109/CROWNCOM.2008.4562458

F. Jondral

{"title":"From Maxwell's Equations to Cognitive Radio","authors":"F. Jondral","doi":"10.1109/CROWNCOM.2008.4562458","DOIUrl":"https://doi.org/10.1109/CROWNCOM.2008.4562458","url":null,"abstract":"Maxwell's equations that were published around 1865 caused Heinrich Hertz to prove the existence of electromagnetic waves. He succeeded in 1887/88. Around 1900, Marconi established the first long distance radio communication connections. During the following five decades, analog radio communication was brought to perfection. A big change in radio development was launched by Shannon with the publication of the sampling theorem in 1949. Together with the invention of the transistor and integrated circuits this led to the establishment of digital signal processing and, emerging from this, to the overwhelming success of digital cellular mobile radio. The demand for radio systems optimally adapted to different applications (personal, office, home, car, urban, rural environments) together with economic necessities resulted in the definition of a variety of standards (DECT, GSM, UMTS, IEEE 802.11x, Bluetooth, ZigBee, ...), a development that called for SDRs. The next step in radio evolution will create devices that will help to make highest efficient use of the radio spectrum. In this scenario radios have to be aware of their location and to supervise their electromagnetic environment in order to be able to optimally adapt their transmission methods. This contribution tries to trace radio development from its origins to cognitive radio as well as to classify future developments.","PeriodicalId":409408,"journal":{"name":"2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128059051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15