2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)最新文献

Compressive sensing for dynamic spectrum access networks: Techniques and tradeoffs 动态频谱接入网络的压缩感知:技术和权衡

2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2011-05-03 DOI: 10.1109/DYSPAN.2011.5936202

J. Laska, W. F. Bradley, T. Rondeau, K. Nolan, B. Vigoda

引用次数: 30

Constructing radio environment maps with heterogeneous spectrum sensors 利用异构频谱传感器构建无线电环境图

2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2011-05-03 DOI: 10.1109/DYSPAN.2011.5936266

V. Atanasovski, J. van de Beek, A. Dejonghe, D. Denkovski, L. Gavrilovska, Sebastien Grimoud, P. Mahonen, Mihajlo Pavloski, V. Rakovic, J. Riihijarvi, B. Sayraç

引用次数: 54

Field trials of DVB-T sensing for TV White Spaces 电视白空间DVB-T传感的现场试验

2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2011-05-03 DOI: 10.1109/DYSPAN.2011.5936217

R. Davies, M. Ghosh

{"title":"Field trials of DVB-T sensing for TV White Spaces","authors":"R. Davies, M. Ghosh","doi":"10.1109/DYSPAN.2011.5936217","DOIUrl":"https://doi.org/10.1109/DYSPAN.2011.5936217","url":null,"abstract":"The use of TV White Spaces on a secondary, unlicensed basis has been of great interest recently in academia, industry and regulatory bodies worldwide. Central to this is the ability to sense incumbent TV signals (ATSC and DVB-T) at extremely low signal levels (−114 dBm to −120 dBm). These levels have been determined primarily through theoretical means, where worst-case interference situations have been considered with little or no probabilistic or measurement studies. While limited field measurements of ATSC sensing prototypes was part of the FCC rulemaking process, these tests were not used to determine appropriate sensing levels. No field testing of DVB-T sensing prototypes was done in Europe. In this paper we extend earlier work on algorithm development and laboratory testing for DVB-T sensing and present results obtained from field testing a prototype DVB-T sensor test bed using a hardware front-end followed by signal processing in software to show that the proposed level of −120 dBm may be too pessimistic: the sensor calibrated in a laboratory at about −115 dBm provided 100% detection of the main DVB-T transmitter for the area at all points in all test sites.","PeriodicalId":119856,"journal":{"name":"2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115734593","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: 11

Robust cooperative sensing via state estimation in cognitive radio networks 基于状态估计的认知无线电网络鲁棒协同感知

2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2011-05-03 DOI: 10.1109/DYSPAN.2011.5936205

Alexander W. Min, Kyu-Han Kim, K. Shin

{"title":"Robust cooperative sensing via state estimation in cognitive radio networks","authors":"Alexander W. Min, Kyu-Han Kim, K. Shin","doi":"10.1109/DYSPAN.2011.5936205","DOIUrl":"https://doi.org/10.1109/DYSPAN.2011.5936205","url":null,"abstract":"Cooperative sensing, a key enabling technology for dynamic spectrum access, is vulnerable to various sensing-targeted attacks, such as the primary user emulation or spectrum sensing data falsification. These attacks can easily disrupt the primary signal detection process, thus crippling the operation of dynamic spectrum access. While such sensing-targeted attacks can be easily launched by an attacker, it is very challenging to design a robust cooperative spectrum sensing scheme due mainly to the practical constraints inherent in spectrum sensing, particularly the shared/open nature of the wireless medium and the unpredictability of signal propagation. In this paper, we develop an efficient, yet simple attack detection framework, called IRIS (robust cooperatIve sensing via iteRatIve State estimation), that safeguards the incumbent detection process by checking the consistency among sensing reports via the estimation of system states, namely, the primary user's transmit-power and path-loss exponent. The key insight behind the design of IRIS is that the sensing results are governed by the network topology and the law of signal propagation, which cannot be easily compromised by an attacker. Consequently, the sensing reports must demonstrate consistency among themselves in estimating system states. Our analytical and simulation results show that, by performing consistency-checks, IRIS provides high attack-detection capability, and preserves satisfactory performance in estimating the system states even under very challenging attack scenarios. Based on these observations, we propose a new incumbent detection rule that can further improve the spectrum efficiency. IRIS can be readily deployed in infrastructure-based cognitive radio networks, such as IEEE 802.22 WRANs, with manageable processing and communication overheads.","PeriodicalId":119856,"journal":{"name":"2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125131844","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: 58

An integrated reconfigurable engine for multi-purpose sensing up to 6 GHz 一个集成的可重构引擎，用于高达6 GHz的多用途传感

2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2011-05-03 DOI: 10.1109/DYSPAN.2011.5936264

S. Pollin, L. Hollevoet, P. Van Wesemael, M. Desmet, A. Bourdoux, E. Lopez, F. Naessens, P. Raghavan, V. Derudder, S. Dupont, A. Dejonghe

引用次数: 20

A cross-layer framework for symbiotic relaying in cognitive radio networks 认知无线电网络中共生中继的跨层框架

2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2011-05-03 DOI: 10.1109/DYSPAN.2011.5936240

Taskeen Nadkar, V. Thumar, Gautam Shenoy, Amit Mehta, U. Desai, S. Merchant

{"title":"A cross-layer framework for symbiotic relaying in cognitive radio networks","authors":"Taskeen Nadkar, V. Thumar, Gautam Shenoy, Amit Mehta, U. Desai, S. Merchant","doi":"10.1109/DYSPAN.2011.5936240","DOIUrl":"https://doi.org/10.1109/DYSPAN.2011.5936240","url":null,"abstract":"The prime focus of this work is in developing a Symbiotic Cooperative Relaying (SCR) architecture for the Commons model of Dynamic Spectrum Access. The incumbent Primary User (PU) of the spectrum, with a weak transmission link, seeks cooperation from the cognitive Secondary User (SU) nodes in its vicinity, and in return rewards them with a suitable incentive. The incentive may be offered in terms of time (Cognitive Relaying with Time Incentive), frequency bands (Cognitive Relaying with Frequency Incentive), or both (Cognitive Relaying with Time and Frequency Incentive). Cross-layer optimization problems are formulated, which maximize the transmission opportunities for the SUs in the multi-hop multichannel relay network, and offer a guaranteed throughput to the PU. To make the SCR scheme practically realizable, a MAC scheduling protocol is proposed within a unified framework for both the PU and SUs. Furthermore, cross-layer formulations are also proposed for multiple SUs to efficiently access the Time or Frequency Incentive for their own communication. Simulation results are furnished for each of the proposed SCR schemes to demonstrate their effectiveness from the perspective of both the PU and SUs.","PeriodicalId":119856,"journal":{"name":"2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122891626","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: 28

TRUMP: Supporting efficient realization of protocols for cognitive radio networks 特朗普:支持认知无线电网络协议的有效实现

2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2011-05-03 DOI: 10.1109/DYSPAN.2011.5936237

Xi Zhang, J. Ansari, Guangwei Yang, P. Mahonen

{"title":"TRUMP: Supporting efficient realization of protocols for cognitive radio networks","authors":"Xi Zhang, J. Ansari, Guangwei Yang, P. Mahonen","doi":"10.1109/DYSPAN.2011.5936237","DOIUrl":"https://doi.org/10.1109/DYSPAN.2011.5936237","url":null,"abstract":"Cognitive radios require fast reconfiguration of the protocol stack for dynamic spectrum access and run-time performance optimization. In order to provide rapid on-the-fly adaptability of PHY/MAC protocols, we have designed and implemented TRUMP: a Toolchain for RUn-tiMe Protocol realization. It includes a meta-language compiler, logic controller and an optimizer. TRUMP allows run-time realization and optimization of cognitive network protocols for the requirements of a particular application, communication capabilities of the radio, the current spectrum regulation and policies. TRUMP supports efficient multi-threading for multi-core platforms in order to meet variable computational requirements and to allow parallelization of PHY/MAC processing for cognitive radio systems. We have carried out the performance evaluation for different metrics on WARP SDR platform and embedded Linux based PCs. Our results indicate that TRUMP allows reconfiguration of protocols in the order of a few microseconds through run-time linking of different components, thus meeting the strict timeliness requirements imposed by PHY/MAC processing.","PeriodicalId":119856,"journal":{"name":"2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114144465","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: 21

License-exempt LTE systems for secondary spectrum usage: Scenarios and first assessment 用于二次频谱使用的免许可证LTE系统:场景和首次评估

2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2011-05-03 DOI: 10.1109/DYSPAN.2011.5936224

Muhammad Imadur Rahman, Ali Behravant, H. Koorapaty, J. Sachs, K. Balachandran

引用次数: 63

Performance evaluation of sensing solutions for LTE and DVB-T LTE和DVB-T传感解决方案的性能评估

2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2011-05-03 DOI: 10.1109/DYSPAN.2011.5936243

P. Van Wesemael, S. Pollin, E. Lopez, A. Dejonghe

{"title":"Performance evaluation of sensing solutions for LTE and DVB-T","authors":"P. Van Wesemael, S. Pollin, E. Lopez, A. Dejonghe","doi":"10.1109/DYSPAN.2011.5936243","DOIUrl":"https://doi.org/10.1109/DYSPAN.2011.5936243","url":null,"abstract":"Since the introduction of the Opportunistic Spectrum Access paradigm, focus has been on the development of sensing algorithms. Many of those techniques have been verified only through simulations. A small set of the techniques has been verified using off-the-shelf hardware, with limited capabilities, and spectrum analyzers with very good performance, however not realistic for low-power handheld solutions. In this paper, we propose sensing functionality for sensing of LTE and DVB-T signals. This functionality is then verified using a prototype RF front-end that is a realistic candidate for future Software Defined Radio (SDR) handheld solutions. The performance achieved with this front-end is also compared with the spectrum analyzer performance, for the same functionality. We conclude that the prototype achieves a sensing performance within 12dB of the performance achieved by the test equipment when using simple energy detection functionality. In the case of feature based sensing both systems achieve similar performance. In terms of sensitivity, the considered DVB-T sensing functionality achieves the target detection performance up to −102dBm with the sensing prototype over a bandwidth of 8 MHz and averaging 9 OFDM symbols.","PeriodicalId":119856,"journal":{"name":"2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121505918","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: 12

Geolocation databases for white space devices in the UHF TV bands: Specification of maximum permitted emission levels 超高频电视频段空白空间设备的地理定位数据库。最大允许发射水平规范

2011 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2011-05-03 DOI: 10.1109/DYSPAN.2011.5936234

H. Karimi

引用次数: 103