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Towards joint routing and spread-spectrum channelization in cognitive ad hoc networks 认知自组织网络中的联合路由和扩频信道化
CoNEXT '10 Student Workshop Pub Date : 2010-11-30 DOI: 10.1145/1921206.1921225
Kanke Gao, Lei Ding
{"title":"Towards joint routing and spread-spectrum channelization in cognitive ad hoc networks","authors":"Kanke Gao, Lei Ding","doi":"10.1145/1921206.1921225","DOIUrl":"https://doi.org/10.1145/1921206.1921225","url":null,"abstract":"We consider a spread-spectrum channelization based secondary network that operates cognitively to coexist with primary users. A new framework for cross-layer design that incorporates adaptation between spectrum-spreading channelization and routing is proposed. Joint power and spreading code allocation in conjunction of the back-pressure routing is developed to optimize the throughput over the whole network. The preliminary simulation results demonstrate significant performance gains compared to random spreading code assignment algorithm.","PeriodicalId":325024,"journal":{"name":"CoNEXT '10 Student Workshop","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122075806","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: 0
A framework for nation-centric classification and observation of the internet 以国家为中心的互联网分类和观察框架
CoNEXT '10 Student Workshop Pub Date : 2010-11-30 DOI: 10.1145/1921206.1921223
Matthias Wählisch, Sebastian Meiling, T. Schmidt
{"title":"A framework for nation-centric classification and observation of the internet","authors":"Matthias Wählisch, Sebastian Meiling, T. Schmidt","doi":"10.1145/1921206.1921223","DOIUrl":"https://doi.org/10.1145/1921206.1921223","url":null,"abstract":"The Internet has matured to a mission-critical infrastructure, and recently attracted much attention at political and legal levels in many countries. Civil actions regarding the Internet infrastructure require a thorough understanding of the national components of the global Internet to foresee possible impacts of regulations and operations at a country-level. In this paper we report on a methodology, tool chain and results for identifying and classifying a 'national Internet'. We argue for the importance to consider individual IP-blocks instead of prefixes and quantify the effects of our proposed approach. The methods have been applied to identify a 'German Internet', but are designed general enough to work for most countries, as well.","PeriodicalId":325024,"journal":{"name":"CoNEXT '10 Student Workshop","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121034394","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: 6
CommonCode: a code reuse platform for co-simulation and experimentation CommonCode:用于联合模拟和实验的代码重用平台
CoNEXT '10 Student Workshop Pub Date : 2010-11-30 DOI: 10.1145/1921206.1921221
Junhee Lee, Jinsung Lee, Kyunghan Lee, S. Chong
{"title":"CommonCode: a code reuse platform for co-simulation and experimentation","authors":"Junhee Lee, Jinsung Lee, Kyunghan Lee, S. Chong","doi":"10.1145/1921206.1921221","DOIUrl":"https://doi.org/10.1145/1921206.1921221","url":null,"abstract":"Experimentation of a wireless network protocol over the air is of significant interest. However it is rarely performed compared to the simulation because of the difficulties in coding and debugging as well as scalability and repeatability. CommonCode is a unique protocol validation platform reusing the simulation codes for the experiments. It helps fast, convenient and accurate validation of protocols.","PeriodicalId":325024,"journal":{"name":"CoNEXT '10 Student Workshop","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129447203","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 handoff strategies for multiple channels cognitive radio network 多信道认知无线电网络的频谱切换策略
CoNEXT '10 Student Workshop Pub Date : 2010-11-30 DOI: 10.1145/1921206.1921228
Adisorn Lertsinsrubtavee, N. Malouch, S. Fdida
{"title":"Spectrum handoff strategies for multiple channels cognitive radio network","authors":"Adisorn Lertsinsrubtavee, N. Malouch, S. Fdida","doi":"10.1145/1921206.1921228","DOIUrl":"https://doi.org/10.1145/1921206.1921228","url":null,"abstract":"This paper proposes a new spectrum handoff approach for multiple channels cognitive radio networks to support delay sensitive applications such as VoIP. The delay probability is estimated to determine whether and how to perform the handoff operation. Moreover, traffic prediction on licensed channels is also required in order to estimate the impairment in the delay. Since, the error of prediction still cannot be solved totally, therefore the backup channel solution is proposed to reduce the harmfulness of this impact. The delay probability density function is through various strategies of spectrum handoff for multiple channels cognitive radio.","PeriodicalId":325024,"journal":{"name":"CoNEXT '10 Student Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125856334","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
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