2010 IEEE 72nd Vehicular Technology Conference - Fall最新文献_第6页

A New Relay Based Dynamic Load Balancing Scheme in Cellular Networks 一种新的基于中继的蜂窝网络动态负载均衡方案

2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594244

Zexi Yang, Z. Niu

引用次数: 23

Cooperative Communication in Wireless Uplink Transmissions Using Random Network Coding 随机网络编码无线上行传输中的协同通信

2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594252

Kundan Kandhway, M. M. Rashid, V. Bhargava

引用次数: 2

A Communication System with a Fast Handover under a High Speed Mobile Environment 高速移动环境下的快速切换通信系统

2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594584

Kazuhiro Yamada, Y. Sakai, Takanobu Suzuki, Y. Kawahara, T. Asami, H. Aida

引用次数: 18

Frequency-Domain Punctured Turbo Codes 频域穿孔涡轮码

2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594168

K. Tahara, K. Higuchi

引用次数: 0

A Hybrid Cognitive Radio System: A Combination of Underlay and Overlay Approaches 一种混合认知无线电系统:底层和覆盖方法的结合

2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594302

J. Oh, Wan Choi

引用次数: 83

Spectrum Sensing for OFDM-Based Cognitive Radio 基于ofdm的认知无线电频谱感知

2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594273

Simin Bokharaiee, Ha H. Nguyen, E. Shwedyk

{"title":"Spectrum Sensing for OFDM-Based Cognitive Radio","authors":"Simin Bokharaiee, Ha H. Nguyen, E. Shwedyk","doi":"10.1109/VETECF.2010.5594273","DOIUrl":"https://doi.org/10.1109/VETECF.2010.5594273","url":null,"abstract":"Abstract-Given the ever growing demand for radio spectrum,cognitive radio has recently emerged as an attractive wireless technology. Since orthogonal frequency division multiplexing (OFDM) is one of the major wideband transmission techniques, detection of OFDM signals in low signal-to-noise-ratio (SNR)scenario is an important research problem. In this paper, it is shown that the cyclic prefix correlation coefficient (CPCC) algorithm, which has been introduced as a simple and computationally efficient spectrum sensing test for OFDM signals, is a special case of the constrained generalized likelihood ratio test(GLRT) in the absence of multipath. As such, the performance of this algorithm degrades in a multipath scenario where OFDM is usually implemented. Moreover, by considering the multipath correlation in the GLRT algorithm and employing the inherent structure of OFDM signals, a simple and low complexity algorithm, called multipath-based constrained-GLRT (MP-based CGLRT)algorithm is obtained. The MP-based C-GLRT algorithm is shown to outperform the CPCC-based algorithm in a rich multipath environment. Further performance improvement can be achieved by simply combining both the CPCC-based and MPbased C-GLRT algorithms.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129858965","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: 5

Non-Cooperative Game for Equal-Gain Beamforming in Multiuser OFDM Systems 多用户OFDM系统等增益波束形成的非合作对策

2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594131

Rong-Terng Juang, Jia-Hao Wu, Pangan Ting, Hsin-Piao Lin, D. Lin

引用次数: 0

Frequency-Domain Coexistence Beacon for the Coexistence of White Space Applications 用于白色空间应用共存的频域共存信标

2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594276

Seungil Yoon, K. Lim

{"title":"Frequency-Domain Coexistence Beacon for the Coexistence of White Space Applications","authors":"Seungil Yoon, K. Lim","doi":"10.1109/VETECF.2010.5594276","DOIUrl":"https://doi.org/10.1109/VETECF.2010.5594276","url":null,"abstract":"For the protection of incumbent users such as digital television (DTV), white space applications running on locally unused TV spectrum should be able to detect incumbent users at a low signal-to-noise ratio (SNR). Recent studies show that at a low SNR under high noise uncertainty, pilot detection performs better than other spectrum sensing methods such as energy detection and feature detection. The motivation of this paper is to adopt a DTV pilot detection scheme to detect white space applications. We propose assigning a frequency-domain coexistence beacon (FCB) at the same location of the DTV pilot as the pilot of white space applications. Over the FCB, every white space application transmits its coexistence beacon frames, and other white space applications detect the frames using the DTV detector just as it does DTV signals. The narrow bandwidth of the FCB contributes to better SNR than that of energy detection. The analysis of the proposed method shows that the increase in the SNR contributes to improving the coexistence of white space applications by increasing the average probability of detection. Although the reduced bandwidth to transmit user traffic causes degradation in the data rate, the proposed method can achieve higher utilization of total white space channels with less interference and more accommodation of newly-joining white space applications. In addition, the proposed method enables us to simply adopt the DTV pilot detector for detecting white space applications, allowing implementation of the proposed method at a low cost with less hardware complexity.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128626625","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

Utilizing Multipath Clusters in Cognitive Radio Systems 多路径集群在认知无线电系统中的应用

2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594304

G. Dahman, R. Hafez, R. Bultitude

引用次数: 1

Balance the Trade-Off between the Accessibility and Performance of Distributed Routing Schemes in Multi-Hop Wireless Networks 多跳无线网络中分布式路由方案可达性与性能的平衡

2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594546

Weiwei Wang, Jun Cai, A. Alfa

引用次数: 0