2014 IEEE Global Communications Conference最新文献_第10页

Cooperative sensing scheduling in Cognitive Radio Networks with multiple Primary Networks 多主网络认知无线网络中的协同感知调度

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7036910

Ye Wang, Xiaodong Lin

{"title":"Cooperative sensing scheduling in Cognitive Radio Networks with multiple Primary Networks","authors":"Ye Wang, Xiaodong Lin","doi":"10.1109/GLOCOM.2014.7036910","DOIUrl":"https://doi.org/10.1109/GLOCOM.2014.7036910","url":null,"abstract":"With the emergence of secondary spectrum markets, it is envisioned that multiple Primary Networks (PRNs) with non-overlapping spectrum pools will be incorporated into Cognitive Radio Networks (CRNs). As a result, CRNs will have a greatly enhanced choice of accessible spectrum resources available to them, which, in turn, brings a significant increase in the diversity of available PRNs; this can greatly increase reliability and stability in the system performance experienced by secondary users (SUs) on the network. However, due to the nature of dynamic network environments, it is hard to meet the requirements of sensing task when the sensing resources, such as the number of participating SUs and A/D sampling capability, are limited. In this paper, we address this issue by studying the problem of cooperative sensing scheduling of CRNs for a dynamic multi-PRN environment. By jointly considering the dynamics of spectrum usage, and the channel conditions of SUs, cooperative spectrum sensing scheduling is formulated as two optimization problems, from the perspectives of primary users (PUs) and SUs, respectively. To solve these problems, two straightforward scheduling schemes are discussed: Random Scheduling and SNR-based Greedy Scheduling. To further improve the sensing performance, a cross entropy (CE) method-based sensing scheduling scheme is proposed. At last, simulation results validate the effectiveness of the proposed CE-based sensing scheduling scheme.","PeriodicalId":6492,"journal":{"name":"2014 IEEE Global Communications Conference","volume":"16 1","pages":"822-827"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73120839","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

Reduced complexity precoding and scheduling algorithms for full-dimension MIMO systems 全维MIMO系统的简化预编码和调度算法

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037575

Yan Xin, Young-Han Nam, Y. Li, Jianzhong Zhang

引用次数: 12

Mobile small cell deployment for next generation cellular networks 下一代蜂窝网络的移动小蜂窝部署

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037574

Shih-Fan Chou, Te-Chuan Chiu, Ya-Ju Yu, Ai-Chun Pang

{"title":"Mobile small cell deployment for next generation cellular networks","authors":"Shih-Fan Chou, Te-Chuan Chiu, Ya-Ju Yu, Ai-Chun Pang","doi":"10.1109/GLOCOM.2014.7037574","DOIUrl":"https://doi.org/10.1109/GLOCOM.2014.7037574","url":null,"abstract":"With the rapid growth of mobile broadband traffic, adopting small cell is a promising trend for operators to improve network capacity with low cost. However, static small cells cannot be flexibly placed to fulfill time/space-varying traffic. The static small cells might stay in idle or under-utilized mode during some time periods, which wastes resources. Therefore, this paper utilizes the mobile small cell concept and studies the deployment problem for mobile small cells. The objective is to maximize the service time provided by mobile small cells for all users. If a finite number of mobile small cells can serve more users for more time, the mobile small cell deployment will have more gains. Specifically, we show an interesting trade-off in the service time maximization. Then, we prove our target problem is NP-hard and propose an efficient mobile small cell deployment algorithm to deal with the trade-off to maximize the total service time. We construct a series of simulations with realistic parameter settings to evaluate the performance of our proposed algorithm. Compared with a static small cell deployment algorithm and a random mobile small cell deployment algorithm, the simulation results show that our proposed scheme can significantly increase the total service time provided for all users.","PeriodicalId":6492,"journal":{"name":"2014 IEEE Global Communications Conference","volume":"26 1","pages":"4852-4857"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72775989","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: 49

Privacy-preserving granular data retrieval indexes for outsourced cloud data 为外包云数据提供保护隐私的粒度数据检索索引

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7036873

Zhigang Zhou, Hongli Zhang, Qiang Zhang, Yang Xu, Panpan Li

{"title":"Privacy-preserving granular data retrieval indexes for outsourced cloud data","authors":"Zhigang Zhou, Hongli Zhang, Qiang Zhang, Yang Xu, Panpan Li","doi":"10.1109/GLOCOM.2014.7036873","DOIUrl":"https://doi.org/10.1109/GLOCOM.2014.7036873","url":null,"abstract":"Storage as a service has become an important paradigm in cloud computing for its great flexibility and economic savings. Since data owners no longer physically possess the storage of their data, it also brings many new challenges for data security and management. Several techniques have been investigated, including encryption, as well as fine-grained access control for enabling such services. However, these techniques just expresses the \"Yes or No\" problem, that is, whether the user has permissions to access the corresponding data. In this paper, we investigate the issue of how to provide different granular information views for different users. Our mechanism first constructs the relationship between the keywords and data files based on a Galois connection. And then we exploit data retrieval indexes with variable threshold, where granular data retrieval service can be supported by adjusting the threshold for different users. Moreover, to prevent privacy disclosure, we propose a differentially privacy release scheme based on the proposed index technique. We prove the privacy-preserving guarantee of the proposed mechanism, and the extensive experiments further demonstrate the validity of the proposed mechanism.","PeriodicalId":6492,"journal":{"name":"2014 IEEE Global Communications Conference","volume":"80 1","pages":"601-606"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72850886","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: 9

CROR: Coding-aware opportunistic routing in multi-channel cognitive radio networks 多信道认知无线网络中的编码感知机会路由

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7036791

Xiaoxiong Zhong, Yang Qin, Yuanyuan Yang, Li Li

引用次数: 18

Contract-based cooperative spectrum sharing in cognitive radio networks 认知无线电网络中基于契约的合作频谱共享

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7036921

B. Nazari, A. Jamalipour

引用次数: 5

Joint information- and jamming-beamforming for full duplex secure communication 全双工保密通信的联合信息和干扰波束成形

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037039

F. Zhu, F. Gao, M. Yao, Jian Li

引用次数: 2

QoE driven video streaming in cognitive radio networks: The case of single channel access 认知无线网络中QoE驱动的视频流:单通道访问的情况

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037002

Zhifeng He, S. Mao, S. Kompella

引用次数: 16

An interference cancellation strategy for broadcast in hierarchical cell structure 一种分层单元结构广播干扰消除策略

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037068

Yuli Yang, S. Aïssa, A. Eltawil, K. Salama

引用次数: 3

Cognitive relay-sharing by using hierarchical modulation under interference constraints 干扰约束下分层调制的认知中继共享

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7036935

H. Khakzad, Reza Shakeri, Abbas Taherpour, T. Khattab, M. Hasna

引用次数: 6