... IEEE Global Communications Conference. IEEE Global Communications Conference最新文献_第4页

Bargaining-based spectrum sharing for cognitive radio networks with incomplete information 基于讨价还价的不完全信息认知无线电网络频谱共享

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503276

X. Tan, Liang Li, Wei Guo

{"title":"Bargaining-based spectrum sharing for cognitive radio networks with incomplete information","authors":"X. Tan, Liang Li, Wei Guo","doi":"10.1109/GLOCOM.2012.6503276","DOIUrl":"https://doi.org/10.1109/GLOCOM.2012.6503276","url":null,"abstract":"To improve the utilization of spectrum resource, a primary network can share its unused bandwidth with a closely located secondary network. As a compensation, the latter should pay a certain price for the obtained bandwidth. To determine this price under the constraint that the primary network only knows an incomplete information for the utility of the secondary network, the present paper consider the repeated offering of a price from the primary network to the secondary network, which then can accept or reject it, until they reach a price agreement. Since this bargaining process helps the primary network estimate the real utility of the secondary network as accurate as possible, the agreed price is mutually beneficial for both networks. Moreover, to increase the satisfaction of all secondary terminals in transmitting heterogeneous applications, i.e., voice, video, image, and data, we also propose a spectrum allocation solution within the secondary network based on Nash bargaining model. Numerical simulation shows that the benefits of the two networks from spectrum sharing varies with their maximal bargaining times and the proposed spectrum allocation scheme can improve the total satisfaction of all secondary terminals while maintain a reasonable fairness among them.","PeriodicalId":72021,"journal":{"name":"... IEEE Global Communications Conference. IEEE Global Communications Conference","volume":"33 1","pages":"1198-1204"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89315034","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

Joint optimization for MIMO AF multiple-relay systems with correlated channel uncertainties 具有相关信道不确定性的MIMO AF多中继系统联合优化

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503690

Chia-Chang Hu, Yi-Shiang Chiu, Sheng-Shang Lin

引用次数: 4

Precoding design for cognitive two-way relay networks 认知双向中继网络的预编码设计

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503681

Rui Wang, M. Tao

引用次数: 0

Inter-cell interference statistics of uplink OFDM systems with Soft Frequency Reuse 基于软频率复用的上行OFDM系统小区间干扰统计

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503872

Yuanping Zhu, Jing Xu, Yang Yang, Xin Yang, Ze-ping Hu

引用次数: 6

A high quality event capture scheme for WSN-based structural health monitoring 基于wsn的结构健康监测的高质量事件捕获方案

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503182

Chao Yang, Jiannong Cao, Xuefeng Liu, Lijun Chen, Daoxu Chen

{"title":"A high quality event capture scheme for WSN-based structural health monitoring","authors":"Chao Yang, Jiannong Cao, Xuefeng Liu, Lijun Chen, Daoxu Chen","doi":"10.1109/GLOCOM.2012.6503182","DOIUrl":"https://doi.org/10.1109/GLOCOM.2012.6503182","url":null,"abstract":"In recent years, there has been an increasing interest in the adoption of wireless sensor networks (WSNs) for structural health monitoring (SHM). However, considering the large amount of sampled data, limited power supply and wireless bandwidth of WSNs, it is generally not possible for sensor nodes to monitor structural condition continuously especially for long-term SHM. From SHM perspective, it is highly desirable to collect data during the occurrence of some certain kinds of events such as earthquakes, large wind, etc, since data collected during these periods are more informative for damage detection purpose. However, these events in SHM occur infrequently and if happen, only last for a very short period of time. To effectively capture these short events using energy-limited wireless sensor nodes is a challenging task that has not been addressed in literature. In this paper, we propose a fast and reliable scheme to capture these short-term events. In terms of hardware, the radio-triggered unit and the vibration-triggered unit are designed in our motes. From software perspective, we develop the event capture scheme to realize fast, reliable and energy-efficient event detection under noisy environment. We mainly study the very first problem of the scheme: sentry selection. The optimization problem is formulated and we show that the problem is a general case of the classical k-center problem. Then we propose a greedy algorithm to solve this problem, and conduct simulation to test the effectiveness of the proposed algorithm.","PeriodicalId":72021,"journal":{"name":"... IEEE Global Communications Conference. IEEE Global Communications Conference","volume":"37 1","pages":"622-627"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76954460","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

Fault-tolerant scheduling for data collection in wireless sensor networks 无线传感器网络数据采集的容错调度

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503970

L. Zhang, Qiang Ye, Jie Cheng, Hongbo Jiang, Yake Wang, Rui Zhou, Peng Zhao

引用次数: 10

Two-dimensional contract theory in Cognitive Radio networks 认知无线电网络中的二维契约理论

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503269

Yanming Cao, Qi Shi, Xinbing Wang, Xiaohua Tian, Y. Cheng

{"title":"Two-dimensional contract theory in Cognitive Radio networks","authors":"Yanming Cao, Qi Shi, Xinbing Wang, Xiaohua Tian, Y. Cheng","doi":"10.1109/GLOCOM.2012.6503269","DOIUrl":"https://doi.org/10.1109/GLOCOM.2012.6503269","url":null,"abstract":"While the spectrum resource of modern society is more and more insufficient, Cognitive Radio, which allows the Secondary Users (unlicensed users, SU) to access the licensed spectrum, is a promising solution to make the utilization of spectrum resource more efficient. Among many different paradigms of cognitive radio, market-driven spectrum trading has been proved to be an efficient way to deal with Cognitive Radio problems. In this paper, we consider the problem of spectrum trading with single primary user (PU) who has multiple spectra selling his idle spectra to multiple SUs in multiple types. Since there is only one PU, so it is a monopoly market, in which the PU sets the prices, powers and time for the spectrum he sells, just as a monopolist. SUs as customers choose the spectrum with exact price, power and time to buy. We model it as a two-dimensional power-time-price contract which is much different from the usual contract because the time could either be a strategy that an SU could decide to choose itself or a type which is not decided by SUs. We first discuss the situation in which the time is set as the strategy and we will prove that it can derive a feasible contract with some conditions. Then we will discuss the second situation in which the time is set as a type. In this situation, because the SU has two kinds of types, so it's difficult to make it become a feasible contract, however we will provide a solution to deal with this problem.","PeriodicalId":72021,"journal":{"name":"... IEEE Global Communications Conference. IEEE Global Communications Conference","volume":"16 1","pages":"1156-1161"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73783380","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

Optimizing content retrieval delay for LT-based distributed cloud storage systems 基于lt的分布式云存储系统内容检索延迟优化

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503396

Haifeng Lu, C. Foh, Yonggang Wen, Jianfei Cai

引用次数: 2

Tradeoff of spectral and energy efficiencies: Impact of power amplifier on OFDM systems 频谱和能量效率的权衡:功率放大器对OFDM系统的影响

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503619

Jingon Joung, Chin Keong Ho, Sumei Sun

引用次数: 13

Verifying cloud Service Level Agreement 验证云服务水平协议

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503207

Lin Ye, Hongli Zhang, Jiantao Shi, Xiaojiang Du

{"title":"Verifying cloud Service Level Agreement","authors":"Lin Ye, Hongli Zhang, Jiantao Shi, Xiaojiang Du","doi":"10.1109/GLOCOM.2012.6503207","DOIUrl":"https://doi.org/10.1109/GLOCOM.2012.6503207","url":null,"abstract":"In this paper we study the important issue of verifying Service Level Agreement (SLA) in a semi-trusted (or untrusted) cloud. Cloud computing services promise elastic computing and storage resources in a pay-as-you-go way. A SLA between a cloud service provider (CSP) and a user is a contract which specifies the resources and performances that the cloud should offer. However, the CSP has the incentive to cheat on SLA, e.g., providing users with less CPU and memory resources than that specified in the SLA, which allows the CSP to support more users and make more profits. A malicious CSP can disrupt the existing SLA monitoring/verification techniques by interfering the monitoring/measurement process. Therefore, we present a SLA verification framework that leverages a third party auditor (TPA). Under the TPA framework, we propose an effective testing algorithm that can detect SLA violations of physical memory size in virtual machine (VM). Using real experiments, we show that the algorithm can detect cloud cheating on VM memory size (i.e., SLA violations). Furthermore, our algorithm can defend various attacks from a malicious CSP, which tries to hide a SLA violation.","PeriodicalId":72021,"journal":{"name":"... IEEE Global Communications Conference. IEEE Global Communications Conference","volume":"219 1","pages":"777-782"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73547873","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