2012 IEEE International Symposium on Dynamic Spectrum Access Networks最新文献

Allocating spectrum: Towards a commons future 频谱分配:走向共享的未来

2012 IEEE International Symposium on Dynamic Spectrum Access Networks Pub Date : 2012-10-16 DOI: 10.1109/DYSPAN.2012.6478110

Mohamed El-Moghazi, J. Whalley, J. Irvine

{"title":"Allocating spectrum: Towards a commons future","authors":"Mohamed El-Moghazi, J. Whalley, J. Irvine","doi":"10.1109/DYSPAN.2012.6478110","DOIUrl":"https://doi.org/10.1109/DYSPAN.2012.6478110","url":null,"abstract":"Spectrum divide is a consequence of the current spectrum management framework which is locked into a paradigm that is based on assigning spectrum exclusively to a number of operators. This regulatory gridlock is due to resistance from current institutional framework, decision making political economy, and misconception of commons. Industrial, Scientific and Medical (ISM) applications, International Telecommunication Union (ITU) primary allocation for mobile service in the 5 GHz for the implementation of WLAN applications, and operation of Cognitive Radio Systems (CRS) in the TV white spaces have initiated changes to the current framework. The driving forces for CRS deployment are ITU indirect support, pressure on regulators to face the growth in data demand, and benefits to the industry. On the other hand, the undermining forces are the ITU concerns, regulators' constrains, broadcasting deployment, and manufacturing issues. This paper argues that the CRS trigger has initiated a new wave of changes within the current spectrum management framework towards spectrum commons where DSA is enabled in other services' spectrum bands rather than broadcasting. The new spectrum management paradigm would accommodate a new kind of secondary operators that deploy CRS to dynamically access the licensees' spectrum. However, it would be difficult for this new paradigm to evolve towards the spectrum commons paradigm. This is due to the structure of the current spectrum management framework which is in favour of regulators and operators.","PeriodicalId":224818,"journal":{"name":"2012 IEEE International Symposium on Dynamic Spectrum Access Networks","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116027725","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

Spectrum access models and auction mechanisms 频谱接入模型和拍卖机制

2012 IEEE International Symposium on Dynamic Spectrum Access Networks Pub Date : 2012-10-01 DOI: 10.1109/DYSPAN.2012.6478120

Kimmo Berg, M. Uusitalo, C. Wijting

{"title":"Spectrum access models and auction mechanisms","authors":"Kimmo Berg, M. Uusitalo, C. Wijting","doi":"10.1109/DYSPAN.2012.6478120","DOIUrl":"https://doi.org/10.1109/DYSPAN.2012.6478120","url":null,"abstract":"The demand for spectrum is growing rapidly as data intensive mobile communications and high-definition television are getting more popular. The spectrum regulators are preparing for flexible spectrum use and the implementation of new technologies. To make the appropriate decisions, the regulators need to identify and evaluate the different alternatives. In this paper, we examine a systematic classification of the spectrum access models that can be used together with suitable auctions in order to evaluate and decide between the different models. The basic idea of the taxonomy is to distinguish the different forms of spectrum sharing. For example, multiple systems may coexist in the same frequency band so that the low priority systems may transmit only if the high priority systems are not occupying the band. The hierarchy of the systems can be implemented by using a variety of technologies like centralized databases or distributed sensing devices. The taxonomy clarifies the regulatory alternatives and highlights the differences in ownership and usage rights. We also discuss how to incorporate the new spectrum access models in the auction design and how to support spectrum management using economic modeling and mechanism design framework.","PeriodicalId":224818,"journal":{"name":"2012 IEEE International Symposium on Dynamic Spectrum Access Networks","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115225207","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: 7

Design of sensing and power allocation strategies for energy-aware multi-channel cognitive radio networks 能量感知多通道认知无线网络的传感和功率分配策略设计

2012 IEEE International Symposium on Dynamic Spectrum Access Networks Pub Date : 2012-10-01 DOI: 10.1109/DYSPAN.2012.6478164

Guangjie Huang, Jitendra Tugnait

引用次数: 6

Geolocation database beyond TV white spaces? Matching applications with database requirements 超越电视空白区域的地理位置数据库?将应用程序与数据库需求相匹配

2012 IEEE International Symposium on Dynamic Spectrum Access Networks Pub Date : 2012-10-01 DOI: 10.1109/DYSPAN.2012.6478171

M. Barrie, S. Delaere, Gintare Sukareviciene, John Gesquiere, I. Moerman

{"title":"Geolocation database beyond TV white spaces? Matching applications with database requirements","authors":"M. Barrie, S. Delaere, Gintare Sukareviciene, John Gesquiere, I. Moerman","doi":"10.1109/DYSPAN.2012.6478171","DOIUrl":"https://doi.org/10.1109/DYSPAN.2012.6478171","url":null,"abstract":"Within the field of cognitive radio many of recent attention has gone to to specific use cases such as the so-called TV White Spaces (TVWS). Within this use case, there has been much discussion on which enabling technology would be appropriate to allow secondary use of the TV band. There seems to be a growing consensus that a geolocation database can successfully enable White Space Devices (WSDs) to make use of the TVWS without harmfully interfering with incumbent services, even though many issues still need to be resolved. Regulators across the globe have also been showing a preference towards this type of cognitive enabler for use in the TVWS-case. This paper argues that both the technology and the use case chosen for CR are firmly interlinked, but that other use cases and applications than TVWS exist where a geolocation database can be of use. It therefore sets out to identify distinct categories of wireless applications and match them with the appropriate geolocation database requirements, from the assumption that these may highly diverge from current database conceptions. In order to do so, a classification of database requirements, based on essential characteristics, will first be constructed. In a following section, the resulting framework of database- and corresponding application requirements will be applied to two use cases; broadband through TVWS and a wireless conferencing system. From this we can conclude that a geolocation database can also be valuable outside a TVWS-setting and that distinct wireless applications in varying contexts have different needs with regard to a database's capabilities and characteristics.","PeriodicalId":224818,"journal":{"name":"2012 IEEE International Symposium on Dynamic Spectrum Access Networks","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124345667","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: 23

Outage and SER performance of an opportunistic multi-user underlay cognitive network 机会多用户底层认知网络的中断和SER性能

2012 IEEE International Symposium on Dynamic Spectrum Access Networks Pub Date : 2012-10-01 DOI: 10.1109/DYSPAN.2012.6478151

F. A. Khan, K. Tourki, Mohamed-Slim Alouini, K. Qaraqe

引用次数: 8

Taxonomy of Cognitive Radio applications 认知无线电应用分类

2012 IEEE International Symposium on Dynamic Spectrum Access Networks Pub Date : 2012-10-01 DOI: 10.1109/DYSPAN.2012.6478127

A. Medeisis, O. Holland, L. D. Nardis

引用次数: 4

Digital dividend capacity in China: A developing country's case study 中国的数字红利能力:一个发展中国家的案例研究

2012 IEEE International Symposium on Dynamic Spectrum Access Networks Pub Date : 2012-10-01 DOI: 10.1109/DYSPAN.2012.6478123

Liang Yin, Kaishun Wu, Sixing Yin, Jiayue Li, Shufang Li, L. Ni

{"title":"Digital dividend capacity in China: A developing country's case study","authors":"Liang Yin, Kaishun Wu, Sixing Yin, Jiayue Li, Shufang Li, L. Ni","doi":"10.1109/DYSPAN.2012.6478123","DOIUrl":"https://doi.org/10.1109/DYSPAN.2012.6478123","url":null,"abstract":"In this paper, we present digital dividend (DD) spectrum capacity gain brought about by switching from analogue terrestrial television (ATT) to digital terrestrial television (DTT) which is now ongoing in China. DD spectrum represents total of TVWhite Space (TVWS) and the released spectrum in our paper. Since spectrum measurement is the most effective method to evaluate the capacity, we use measured TV UHF band data from 470 MHz to 798 MHz from diverse locations to acquire a quantitative DD capacity. Our results confirm the existence of at most 168 MHz DD capacity in urban areas which will provide good opportunities for Dynamic Spectrum Access (DSA) applications. We observe that during the transition period introducing DTT to rural areas tends to provide less spectrum compared with purely ATT broadcasting. Hence, rural areas have less DD capacity compared with urban areas, which totally contradicts previous measurement findings. Our data validates the practicality of fixed power level threshold rules for idle TV channel detection. We find field strength is another threshold choice for determining TV channel states. Our spectrum measurement methodology and findings are applicable to spectrum planning and spectrum regulations, especially for developing countries that are in DTT transition periods.","PeriodicalId":224818,"journal":{"name":"2012 IEEE International Symposium on Dynamic Spectrum Access Networks","volume":"42 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123659996","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: 13

A Neighbor Cooperation Framework for Time-efficient Asynchronous Channel Hopping Rendezvous in Cognitive Radio Networks 认知无线网络中一种时效性异步信道跳变交会的邻居合作框架

2012 IEEE International Symposium on Dynamic Spectrum Access Networks Pub Date : 2012-10-01 DOI: 10.1109/dyspan.2012.6478177

Quan Liu, Deming Pang, Gang Hu, Xiaodong Wang, Xingming Zhou

引用次数: 14

Robust interference identification for multi-RAT optimization in wireless cellular networks 无线蜂窝网络中多rat优化的鲁棒干扰识别

2012 IEEE International Symposium on Dynamic Spectrum Access Networks Pub Date : 2012-10-01 DOI: 10.1109/DYSPAN.2012.6478147

Emmanuel Pollakis, R. Cavalcante, S. Stańczak, F. Penna

引用次数: 2

Adaptive frequency hopping algorithms for multicast rendezvous in DSA networks DSA网络中组播集合的自适应跳频算法

2012 IEEE International Symposium on Dynamic Spectrum Access Networks Pub Date : 2012-10-01 DOI: 10.1109/DYSPAN.2012.6478176

Mohammad J. Abdel-Rahman, Hanif Rahbari, M. Krunz

{"title":"Adaptive frequency hopping algorithms for multicast rendezvous in DSA networks","authors":"Mohammad J. Abdel-Rahman, Hanif Rahbari, M. Krunz","doi":"10.1109/DYSPAN.2012.6478176","DOIUrl":"https://doi.org/10.1109/DYSPAN.2012.6478176","url":null,"abstract":"Establishing communications in a dynamic spectrum access (DSA) network requires communicating nodes to “rendezvous” before transmitting their data packets. Frequency hopping (FH) provides an effective method for rendezvousing without relying on a predetermined control channel. FH rendezvous protocols have mainly targeted pairwise rendezvous, using fixed (non-adaptive) FH sequences and assuming a homogeneous spectrum environment, i.e., all nodes perceive the same spectrum opportunities. In this paper, we address these limitations by developing three multicast rendezvous algorithms: AMQFH, CMQFH, and nested-CMQFH. The three algorithms are intended for asynchronous spectrum-heterogeneous DSA networks. They provide different tradeoffs between speed and robustness to node compromise. We use the uniform k-arbiter and the Chinese remainder theorem (CRT) quorum systems to design our multicast rendezvous algorithms. We also design two “optimal” channel ordering mechanisms for channel sensing and assignment, one for AMQFH and the other for CMQFH and nested-CMQFH. Finally, we develop a proactive out-of-band sensing based dynamic FH (DFH) algorithm for online adaptation of the FH sequences used in the proposed rendezvous algorithms. Extensive simulations are used to evaluate our algorithms.","PeriodicalId":224818,"journal":{"name":"2012 IEEE International Symposium on Dynamic Spectrum Access Networks","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128569484","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: 35