2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN)最新文献

An Iterative Threshold Selection Algorithm for Cooperative Sensing in a Cognitive Radio Network 认知无线网络协同感知的迭代阈值选择算法

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-06 DOI: 10.1109/DYSPAN.2010.5457843

D. Teo, Kun Zhong, B. Ng

引用次数: 18

To Buffer or to Switch: Design of Multichannel MAC for OSA Ad Hoc Networks 是缓冲还是交换:OSA自组织网络的多通道MAC设计

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-06 DOI: 10.1109/DYSPAN.2010.5457877

Jihoon Park, P. Pawełczak, D. Cabric

引用次数: 12

Cognitive Radio for Home Networking 家庭网络的认知无线电

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-06 DOI: 10.1109/DYSPAN.2010.5457922

V. Atanasovski, D. Denkovski, T. Farnham, L. Gavrilovska, A. Gefflaut, V. Kolář, P. Mahonen, E. Meshkova, B. Motz, J. Nasreddine, V. Pavlovska, M. Petrova, S. Quadri, K. Rerkrai, M. Sooriyabandara, A. Steinmetzler, Z. Wang

{"title":"Cognitive Radio for Home Networking","authors":"V. Atanasovski, D. Denkovski, T. Farnham, L. Gavrilovska, A. Gefflaut, V. Kolář, P. Mahonen, E. Meshkova, B. Motz, J. Nasreddine, V. Pavlovska, M. Petrova, S. Quadri, K. Rerkrai, M. Sooriyabandara, A. Steinmetzler, Z. Wang","doi":"10.1109/DYSPAN.2010.5457922","DOIUrl":"https://doi.org/10.1109/DYSPAN.2010.5457922","url":null,"abstract":"Cognitive Radios have emerged as one the most promising methods to increase wireless system efficiency through dynamic spectrum access combined with other cross-layer optimization methods. Most of the research prototypes and demonstrations have so far focused on either general platforms or scenarios that are predominantly taken from military or emergency communications domain. In this demonstration we show the prototype environment that is build around realistic home networking scenarios. The demonstration has two purposes. First, it demonstrates how a set of different implemented and integrated components can achieve local area optimization both in frequency allocation and other domains. Second, it shows the viability and attractiveness of cognitive radio methods for future commercial home networking devices. The demonstration showcases dynamic spectrum allocation and policy based behavioral changes in a home environment, where several multimedia stream and data communication connections are competing against each other.","PeriodicalId":106204,"journal":{"name":"2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116818854","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: 10

DSA: The Path Forward DSA:前进的道路

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-06 DOI: 10.1109/DYSPAN.2010.5457830

A. Gad, F. Digham

引用次数: 2

The Impact of Frequency-Agility on Dynamic Spectrum Sharing 频率敏捷性对动态频谱共享的影响

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-06 DOI: 10.1109/DYSPAN.2010.5457889

L. Cao, Lei Yang, Haitao Zheng

{"title":"The Impact of Frequency-Agility on Dynamic Spectrum Sharing","authors":"L. Cao, Lei Yang, Haitao Zheng","doi":"10.1109/DYSPAN.2010.5457889","DOIUrl":"https://doi.org/10.1109/DYSPAN.2010.5457889","url":null,"abstract":"Designed to adapt spectrum usage on-the-fly, frequency-agile radios can drastically improve performance of wireless networks. Such flexibility, however, comes with a cost of increased hardware complexity. This motivates us to understand when and why having higher degree of frequency-agility helps and how much improvement it can lead to. In this paper, we approach this question by comparing two types of agile radios in the context of dynamic spectrum sharing in any given spectrum chunk. We consider 1-agile radios that use a single frequency channel but can adjust the channel's width and central frequency, and k-agile radios that can combine up to k non-contiguously aligned frequency segments into one transmission. We show that, due to inherent demand dynamics and conflict heterogeneity, networks using 1-agile radios often face the problem of spectrum fragmentation. But k-agile radios can effectively suppress this problem directly at the physical layer. Using theoretical analysis and simulation experiments, we quantify the advantage of k- agile radios over 1-agile radios in their network spectrum usage. For a fair comparison, we abstract the impact of demand and topology configurations by evaluating the worst case and average case performance. Our results show that in worst cases, the improvement of using fully-agile radios is arbitrarily large, although the improvement of using k-agile radios is upper bounded by k. In average cases, the improvement reduces to 10-40% under typical network configurations. Interestingly, in the context of dynamic spectrum sharing, 2-agile radios realize the majority of the improvement brought by fully-agile radios.","PeriodicalId":106204,"journal":{"name":"2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121220795","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: 33

Primary User Detection in Distributed Cognitive Radio Networks under Timing Inaccuracy 时序不准确下分布式认知无线网络主用户检测

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-06 DOI: 10.1109/DYSPAN.2010.5457865

Jari Nieminen, R. Jantti, Lijun Qian

{"title":"Primary User Detection in Distributed Cognitive Radio Networks under Timing Inaccuracy","authors":"Jari Nieminen, R. Jantti, Lijun Qian","doi":"10.1109/DYSPAN.2010.5457865","DOIUrl":"https://doi.org/10.1109/DYSPAN.2010.5457865","url":null,"abstract":"In this paper we study energy detection for primary user signals in the case of distributed Cognitive Radio (CR) networks. We concentrate on the effects of interference caused by other CR users due to timing misalignments and propose a novel mathematical model for calculating the effects of interfering nodes on energy detection and derive closed-form solutions for the probabilities of detection and false alarm. We verify our model by simulations and show that the impact of interference is severe in the presence of timing errors in distributed CR networks. To the best of authors' knowledge, the problem of inaccurate timing has not been investigated before. However, as we show in this paper, without interference cancellation or precise synchronization, timing errors will degrade sensing performance heavily in decentralized secondary networks and the throughput of CR networks will be significantly lower as well. The results obtained in this work can be used to guide the design and performance analysis of energy-based detection in distributed CR networks when accurate time synchronization is not available.","PeriodicalId":106204,"journal":{"name":"2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130006668","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

Reconciling Technical Ambitions and Business Realities of Cognitive Radio: Standardising Generic Interfaces for Cognitive Radio Reconfiguration 协调认知无线电的技术目标和商业现实:标准化认知无线电重构的通用接口

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-06 DOI: 10.1109/DYSPAN.2010.5457837

M. Sooriyabandara, T. Farnham

{"title":"Reconciling Technical Ambitions and Business Realities of Cognitive Radio: Standardising Generic Interfaces for Cognitive Radio Reconfiguration","authors":"M. Sooriyabandara, T. Farnham","doi":"10.1109/DYSPAN.2010.5457837","DOIUrl":"https://doi.org/10.1109/DYSPAN.2010.5457837","url":null,"abstract":"In this paper, we consider the problem that despite considerable Cognitive Radio (CR) research over the last decade and standardization efforts in DySPAN related topics in recent times, thus far, the commercial realisation of autonomous and intelligent networks has not been fulfilled. This is partly because of the complexity of deploying learning algorithms and protocol solutions that satisfy the conflicting stakeholder interests that have implications on existing business models and practices. In this paper we consider the proposition that the success of wider commercial deployment of CR network solutions will benefit significantly by the availability of an open and standard API mechanism that enable stakeholder interoperability, leading to new and innovative business models. The Cognitive Resource Management (CRM) architecture, which has recently been defined by the EU ARAGORN research project, is used as the basis for this approach. A brief analysis of telecom business models is used to understand the relative merits. We conclude that a standard set of generic interfaces can enables seamless cooperation across stakeholder and protocols boundaries to facilitate an evolutionary path for telecom business models through emergence of CR devices of different capabilities providing a great opportunity for product differentiation and optimization.","PeriodicalId":106204,"journal":{"name":"2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134390747","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: 1

Location-Based Adaptive Detection Threshold for Dynamic Spectrum Access 基于位置的动态频谱接入自适应检测阈值

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-06 DOI: 10.1109/DYSPAN.2010.5457863

J. Nasreddine, J. Riihijarvi, P. Mahonen

{"title":"Location-Based Adaptive Detection Threshold for Dynamic Spectrum Access","authors":"J. Nasreddine, J. Riihijarvi, P. Mahonen","doi":"10.1109/DYSPAN.2010.5457863","DOIUrl":"https://doi.org/10.1109/DYSPAN.2010.5457863","url":null,"abstract":"In this paper we propose a heuristic algorithm that exploits additional information that can be in general known by a secondary network willing to opportunistically access the spectrum allocated to a primary network. The algorithm aims at finding the maximum allowed transmission power with which a secondary node can transmit while respecting primary constraints. It is designed to be used in the presence of multiple primary transmitters with known positions but without information about their activity patterns. The estimation of the allowed transmission power is derived using a semi-analytical model characterizing interference probability. The latter is defined as the probability that the interference generated by the secondary node to any of the users in a primary cell exceeds a fixed threshold. The main idea is to autonomously determine a detection threshold based on the relative position of the secondary node towards base stations. Simulation results in a simple scenario are analyzed in order to explain the behavior of the algorithm. In addition, more results are introduced to evaluate the performance of the algorithm in more realistic scenarios.","PeriodicalId":106204,"journal":{"name":"2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128941086","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: 24

Experiences from the Iris Testbed in Dynamic Spectrum Access and Cognitive Radio Experimentation 虹膜试验台在动态频谱接入和认知无线电实验中的经验

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-06 DOI: 10.1109/DYSPAN.2010.5457835

L. Doyle, P. Sutton, K. Nolan, Jörg Lotze, Baris Ozgul, T. Rondeau, Suhaib A. Fahmy, Hicham Lahlou, L. Dasilva

引用次数: 15

Cognitive Radio Access to TV White Spaces: Spectrum Opportunities, Commercial Applications and Remaining Technology Challenges 电视空白空间的认知无线电接入:频谱机会、商业应用和剩余的技术挑战

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-06 DOI: 10.1109/DYSPAN.2010.5457902

M. Nekovee

引用次数: 130