2009 Canadian Conference on Electrical and Computer Engineering最新文献_第9页

Impact of a finite ground plane on the accuracy of conventional wideband direction finding systems for signals of unknown polarization 有限地平面对未知极化信号下传统宽带测向系统精度的影响

2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090300

S. Henault, Y. Antar, S. Rajan, R. Inkol, Sichun Wang

引用次数: 1

The Australian Coastal Ocean radar Network facility 澳大利亚海岸海洋雷达网络设施

2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090084

M. Heron

{"title":"The Australian Coastal Ocean radar Network facility","authors":"M. Heron","doi":"10.1109/CCECE.2009.5090084","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090084","url":null,"abstract":"The Australian Coastal Ocean radar Network (ACORN) is a monitoring network of HF radars which are being installed around Australia under a National Collaborative Research Infrastructure Strategy (NCRIS). It is a five-year project, at the end of which there will be five pairs of radar stations and one triplet installed and operating, enabled by the central pool of funding for the Integrated Marine Observing System (IMOS) which is a part of NCRIS, and augmented by funding from other sources. At each chosen site there is a pair (or triplet) of radar stations, mounted on the shore, which receive radar echoes from the rough sea. Four of the pairs of radar stations are phased array installations and one pair and the triplet are of the amplitude direction finding genre. The NCRIS strategy is to provide easily accessed data, freely available to researchers in quality controlled archives. The IMOS aim is to produce data which will support research into coastal dynamics and exchange between the open ocean and the continental shelf. In addition to research in coastal oceanography, the data are available for algorithm development and evaluation of new applications for HF ocean radar. There is potential for application of the data to management of coastal marine resources, and in marine safety areas. Real-time maps of surface currents and the prospect of short-term forecasting have the potential to reduce search areas in coastal waters and to make pollution/spill mitigation more effective. With the establishment of HF radar monitoring stations like those in ACORN, there is growing opportunity for researchers around the world to access data from well curated archives to carry out basic research on physical oceanography, or applications research without having direct access to the measuring facility. This feature brings the ACORN HF radars into GEOSS for coastal processes and dynamics.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114714722","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: 4

PWCE design in survivablewdm networks using unrestricted shape p-structure patterns 使用不受限制形状p结构模式的可生存lewdm网络的PWCE设计

2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090137

S. Sebbah, B. Jaumard

{"title":"PWCE design in survivablewdm networks using unrestricted shape p-structure patterns","authors":"S. Sebbah, B. Jaumard","doi":"10.1109/CCECE.2009.5090137","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090137","url":null,"abstract":"We propose a new way to design a Protected Working Capacity Envelope (PWCE) in survivable WDM networks by using pre-configured protection structures with unrestricted shapes (arbitrary shape patterns). So far, the pre-configured cycle (p-cycle) structure is the only building block that has been used in the design of PWCEs. In this paper, we do not impose any restriction on the shapes of the protection building blocks, rather, we search for p-structures in the network that favor the protection efficiency (reliability, redundancy) and recovery delay (local recovery). In order to cope with the large solution space, we use an efficient large scale optimization technique that relies on Column Generation (CG) where only globally most promising p-structures are enumerated on the fly during the optimization process. We compare the capacity efficiency, the reliability, and the average length of the backup paths of our PWCE design approach with the p-cycle based one. The results show that a design based on unrestricted p-structure patterns is ∼ 10% less capacity redundant, ∼ 15% more reliable, and allow recovery along shorter backup paths compared to the p-cycle based scheme.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125332311","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: 4

A novel SHE-PWM method for five level voltage inverters with quarter-wave symmetry 四分之一波对称五电平电压逆变器的SHE-PWM新方法

2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090287

W. Fei, Bin Wu, Qin Wu

引用次数: 6

An optimal interworking authentication scheme based on EAP-AKA for heterogeneous access networks 一种基于EAP-AKA的异构接入网络最优互通认证方案

2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090237

Mei Song, Li Wang, Jianwen Huang, Junde Song

引用次数: 5

Segmentation of the effective area of images of renal biopsy samples 肾活检样本图像有效区域的分割

2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090101

S. Seminowich, A. Sar, S. Yilmaz, R. Rangayyan

引用次数: 2

Blind speech separation using high order statistics 基于高阶统计量的盲语音分离

2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090213

Y. Benabderrahmane, A. Salem, S. Selouani, D. O'Shaughnessy

引用次数: 3

Improved layered space time architecture over quasi-static fading channels with unequal power allocation and multistage decoding 改进的准静态衰落信道非均匀功率分配和多级解码的分层时空结构

2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090205

Dherar Rezk, Xiaofeng Wang

{"title":"Improved layered space time architecture over quasi-static fading channels with unequal power allocation and multistage decoding","authors":"Dherar Rezk, Xiaofeng Wang","doi":"10.1109/CCECE.2009.5090205","DOIUrl":"https://doi.org/10.1109/CCECE.2009.5090205","url":null,"abstract":"The Bell labs layered space-time (BLAST) architecture pioneered by Foschini was found to achieve high spectral efficiency with moderate complexity. However, the redundancy in error correcting codes in BLAST receiver is not used in detection improvement, as detection and decoding are carried out separately. In this paper, we investigate a new approach for improved performance of BLAST based on multi- stage decoding (MSD) and unequal transmit power allocation among layers, for transmission over flat quasi-static Rayleigh fading channels. The use of MSD exploits the inherent redundancy in the employed channel codes to improve detection in BLAST without the need for complex iterative decoding approaches. In addition, we investigate unequal transmit power allocation among layers for transmission over flat quasi-static Rayleigh fading channels. We first derive a theorem for power allocation that maximizes outage capacity. We then find the unequal power allocation required to guarantee equal outage capacities among layers in BLAST combined with MSD detection. The proposed power allocation simplifies implementation and improves error performance. Simulation results show that the proposed architecture significantly outperforms existing BLAST schemes in terms of error performance for transmission over flat quasi-static Rayleigh fading channels.","PeriodicalId":153464,"journal":{"name":"2009 Canadian Conference on Electrical and Computer Engineering","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122115007","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

Analog placement design with constraints of multiple symmetry groups 多对称群约束下的模拟放置设计

2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090316

Rui He, Lihong Zhang

引用次数: 1

Application layer optimization for efficient video streaming over IEEE 802.11 based wireless networks 基于IEEE 802.11无线网络的高效视频流的应用层优化

2009 Canadian Conference on Electrical and Computer Engineering Pub Date : 2009-05-03 DOI: 10.1109/CCECE.2009.5090236

A. Moid, A. Fapojuwo

引用次数: 2