2015 IEEE Symposium on Computers and Communication (ISCC)最新文献_第4页

High performance fault-tolerance for clouds 云的高性能容错性

2015 IEEE Symposium on Computers and Communication (ISCC) Pub Date : 2015-07-06 DOI: 10.1109/ISCC.2015.7405524

D. Kyriazis, Vasileios I. Anagnostopoulos, Andrea Arcangeli, David Gilbert, D. Kalogeras, Ronen I. Kat, C. Klein, P. Kokkinos, Yossi Kuperman, J. Nider, Petter Svärd, Luis Tomás, Emmanouel Varvarigos, T. Varvarigou

引用次数: 4

Unequal error protection for S3AC coding based on expanding window fountain codes 基于扩展窗口喷泉码的S3AC编码的不等错误保护

2015 IEEE Symposium on Computers and Communication (ISCC) Pub Date : 2015-07-06 DOI: 10.1109/ISCC.2015.7405507

L. Su, Ge Gao, Cheng Yang, R. Hu, Xiaochen Wang, Xin Su

{"title":"Unequal error protection for S3AC coding based on expanding window fountain codes","authors":"L. Su, Ge Gao, Cheng Yang, R. Hu, Xiaochen Wang, Xin Su","doi":"10.1109/ISCC.2015.7405507","DOIUrl":"https://doi.org/10.1109/ISCC.2015.7405507","url":null,"abstract":"This paper presents a coding scheme to improve the performance of three-dimensional (3D) audio. The scheme is designed by the idea of joint source channel coding (JSCC) and is implemented by Expanding Window Fountain (EWF) codes for the 3D audio bitstreams after source coding of spatial squeeze surround audio coding (S3AC). EWF is one of unequal error protection (UEP) LT codes and the proposed scheme is achieved by that method for the case of two levels. Different from other transmissions with equal error protection (EEP) for each part of bitstreams, when transmitting the two parts of the bitstreams with downmixed mono signals and spatial side information after S3AC coding, this approach provides more protection to the part of spatial side information and comparatively less protection to the downmixed mono signals, and results in the improvement of the performance of the reproduced 3D audio especially on the aspect of the spatial perception. Objective simulation experiment has shown the proposed UEP scheme achieves a better performance than the EEP scheme on the aspect of spatial perception, for the bits error rates (BER) of spatial parameters can decrease dramatically to a low value of about 10-4, but BERs of downmixed mono signals and the case of EEP just decrease slightly to about 10-3.","PeriodicalId":186097,"journal":{"name":"2015 IEEE Symposium on Computers and Communication (ISCC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133857204","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

Secure positioning with non-ideal distance bounding protocols 安全定位与非理想的距离边界协议

2015 IEEE Symposium on Computers and Communication (ISCC) Pub Date : 2015-07-06 DOI: 10.1109/ISCC.2015.7405629

Pericle Perazzo, G. Dini

引用次数: 7

NF-Dedupe: A novel no-fingerprint deduplication scheme for flash-based SSDs NF-Dedupe:一种新的基于闪存的ssd无指纹重复数据删除方案

2015 IEEE Symposium on Computers and Communication (ISCC) Pub Date : 2015-07-06 DOI: 10.1109/ISCC.2015.7405578

Zhengguo Chen, Zhiguang Chen, Nong Xiao, Fang Liu

{"title":"NF-Dedupe: A novel no-fingerprint deduplication scheme for flash-based SSDs","authors":"Zhengguo Chen, Zhiguang Chen, Nong Xiao, Fang Liu","doi":"10.1109/ISCC.2015.7405578","DOIUrl":"https://doi.org/10.1109/ISCC.2015.7405578","url":null,"abstract":"NAND flash-based Solid State Drives (SSDs) have been widely deployed in data centers of cloud computing due to their high performance compared with hard disks, while the limited lifespan of flash memory makes SSDs not very suitable for write-intensive applications. Deduplication is an effective method used to reduce the write traffic of applications thus can be used to extend the lifespan of SSDs. However, traditional deduplication schemes rely on the time-consuming fingerprint computing process to find duplicated data, which may impair the write performance of SSDs. Accordingly, Pre-hashing was proposed to reduce the chances of fingerprint computing thus improving the performance of SSDs with deduplication, but at the cost of degrading deduplication rate. In this paper, we propose NF-Dedupe, a new deduplication scheme that needs no fingerprint computing for flash-based SSDs. NF-Dedupe determines whether a write page is duplicated or not by comparing the write page with its potential duplicated page read from underlying flash chips byte by byte, rather than relying on the comparison of fingerprints. As flash memory is known for its high parallelism and low read latency, reading a page from flash chip and comparing two pages byte by byte introduce lower overhead than the fingerprint computing does. We evaluate the NF-Dedupe via trace-driven simulations. Experimental results have shown that NF-Dedupe outperforms the other approaches and can achieve the deduplication rate ranging from 5.3% to 29.9% and the write latency is improved by a factor of up to 21% with an average of 12%.","PeriodicalId":186097,"journal":{"name":"2015 IEEE Symposium on Computers and Communication (ISCC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134391206","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: 8

Acoustic model parameter estimation using distributed incremental adaptive networks 基于分布式增量自适应网络的声学模型参数估计

2015 IEEE Symposium on Computers and Communication (ISCC) Pub Date : 2015-07-06 DOI: 10.1109/ISCC.2015.7405559

S. M. Taheri, H. Nosrati

引用次数: 2

SISO and MIMO analog network coding relay architectures for the uplink of LTE-Advanced LTE-Advanced上行链路的SISO和MIMO模拟网络编码中继架构

2015 IEEE Symposium on Computers and Communication (ISCC) Pub Date : 2015-07-06 DOI: 10.1109/ISCC.2015.7405620

Kareem M. Metwaly, M. Eldin, M. Elsabrouty

引用次数: 2

Construction of structured low density lattice codes based on finite fields 基于有限域的结构低密度点阵码的构造

2015 IEEE Symposium on Computers and Communication (ISCC) Pub Date : 2015-07-06 DOI: 10.1109/ISCC.2015.7405587

Jia-Yun Li, Shutao Xia, Xinji Liu

引用次数: 0

Prediction-based connection manager for vehicular networks 基于预测的车辆网络连接管理器

2015 IEEE Symposium on Computers and Communication (ISCC) Pub Date : 2015-07-06 DOI: 10.1109/ISCC.2015.7405540

J. Mendes, F. Neves, Ricardo Matos, S. Sargento

{"title":"Prediction-based connection manager for vehicular networks","authors":"J. Mendes, F. Neves, Ricardo Matos, S. Sargento","doi":"10.1109/ISCC.2015.7405540","DOIUrl":"https://doi.org/10.1109/ISCC.2015.7405540","url":null,"abstract":"Vehicular Ad-hoc NETworks (VANETs) have unique characteristics, such as the high mobility of nodes, which cause frequent losses of connectivity, turning technology and network selection into a complex problem. Moreover, due to the instability of networks and its fast change, this network selection requires information of the networks in advance, so that it can predict the quality of the networks to connect. This paper proposes a predictive connection manager that is able to choose in advance the best network and technology a vehicle can connect to. This approach will use the information of previous connections to a station or road side unit, such as the throughput and amount of transferred traffic, and combines this information with sensing information of the quality of available networks. With both previous and current information, it will choose the network that has been able to provide the best performance in previous connections and remains with a good quality. The results of the proposed approach, tested in a real vehicular network deployed in Portugal, show that key performance metrics are improved, such as connection range, throughput and the number of handovers, with a general improvement on connection stability.","PeriodicalId":186097,"journal":{"name":"2015 IEEE Symposium on Computers and Communication (ISCC)","volume":"337 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116469937","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

CDN bandwidth allocation in weakly interconnected networks 弱互连网络中的CDN带宽分配

2015 IEEE Symposium on Computers and Communication (ISCC) Pub Date : 2015-07-06 DOI: 10.1109/ISCC.2015.7405621

Jiqiang Wu, Yipeng Zhou, D. Chiu, Zirong Zhu

引用次数: 1

A spectrum efficient polarized OFDM scheme for wireless depolarized channel 一种无线去极化信道的频谱高效极化OFDM方案

2015 IEEE Symposium on Computers and Communication (ISCC) Pub Date : 2015-07-06 DOI: 10.1109/ISCC.2015.7405588

Dong Wei, Meng Zhang, W. Fan, Wei-qing Huang

引用次数: 2