Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video最新文献_第2页

TSync: a new synchronization framework for multi-site 3D tele-immersion TSync:一种新的多站点3D远程沉浸同步框架

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806577

Zixia Huang, Wanmin Wu, K. Nahrstedt, A. Arefin, Raoul Rivas

引用次数: 21

Second life: a social network of humans and bots 第二人生:人类和机器人的社交网络

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806570

Matteo Varvello, G. Voelker

引用次数: 56

p264: open platform for designing parallel H.264/AVC video encoders on multi-core systems p264:在多核系统上设计并行H.264/AVC视频编码器的开放平台

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806586

António Rodrigues, N. Roma, L. Sousa

引用次数: 19

Session details: Wireless and mesh streaming 会话细节:无线和网状流

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/3251938

D. Bulterman

引用次数: 0

RTP-miner: a real-time security framework for RTP fuzzing attacks RTP-miner:用于RTP模糊攻击的实时安全框架

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806587

M.A. Akbar, M. Farooq

{"title":"RTP-miner: a real-time security framework for RTP fuzzing attacks","authors":"M.A. Akbar, M. Farooq","doi":"10.1145/1806565.1806587","DOIUrl":"https://doi.org/10.1145/1806565.1806587","url":null,"abstract":"Real-time Transport Protocol (RTP) is a widely adopted standard for transmission of multimedia traffic in Internet telephony (commonly known as VoIP). Therefore, it is a hot potential target for imposters who can launch different types of Denial of Service (DoS) attacks to disrupt communication; resulting in not only substantive revenue loss to VoIP operators but also undermining the reliability of VoIP infrastructure. The major contribution of this paper is an online framework -- RTP-Miner -- that detects RTP fuzzing attacks in realtime; as a result, it is not possible to deny access to legitimate users. RTP-Miner can detect both header and payload fuzzing attacks. Fuzzing in the header of RTP packets is detected by combining well known distance measures with a decision tree based classifier. In comparison, payload fuzzing is detected through a novel Markov state space model at the receiver. We evaluate RTP-Miner on a realworld RTP traffic dataset. The results show that RTP-Miner detects fuzzing in RTP header with more than 98% accuracy and less than 0.1% false alarm rate even when only 3% fuzzing is introduced. For the same fuzzing rate, it detects payload fuzzing -- a significantly more challenging problem -- with more than 80% accuracy and less than 2% false alarm rate. RTP-Miner has low memory and processing overheads that makes it well suited for deployment in real world VoIP infrastructure.","PeriodicalId":436504,"journal":{"name":"Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130630523","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

Collaborative delay-aware scheduling in peer-to-peer UGC video sharing 点对点UGC视频共享中的协同延迟感知调度

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806591

Xu Cheng, Feng Wang, Jiangchuan Liu, Ke Xu

{"title":"Collaborative delay-aware scheduling in peer-to-peer UGC video sharing","authors":"Xu Cheng, Feng Wang, Jiangchuan Liu, Ke Xu","doi":"10.1145/1806565.1806591","DOIUrl":"https://doi.org/10.1145/1806565.1806591","url":null,"abstract":"We have recently witnessed an explosion of user-generated content (UGC) sharing, particularly video clips, as the new killer Internet application. Given the sheer amount of resource demands, the peer-to-peer (or peer-assisted) model has been suggested for this new service scenario. There are however a series of unique challenges from the UGC videos to be addressed, in particular, their significantly shorter lengths. As such, any delay, even being minor as compared to those for conventional movie-like videos, will be perceptually amplified. Given the much more stringent delay requirement, the UGC video sharing thus calls for sophisticated scheduling to provide quality playback. In this paper, we propose a novel collaborative delay-aware scheduling (CODAS) that is customized for the short UGC videos. CODAS improves playback quality and reduces server workload, through adaptive prioritization of data requests and tighter collaboration between peer suppliers and the server. We present detailed design and optimization of CODAS, particularly the synergy policies in different zones of a shrinking window. We evaluate it through extensive trace-driven simulations and PlanetLab prototype experiments, and the results show the great improvement over the state-of-the-art solutions.","PeriodicalId":436504,"journal":{"name":"Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129806030","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

A new QoE model and evaluation method for broadcast audio contribution over IP 基于IP的广播音频贡献QoE模型及评价方法

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806581

M. Graubner, P. Mogre, R. Steinmetz, T. Lorenzen

{"title":"A new QoE model and evaluation method for broadcast audio contribution over IP","authors":"M. Graubner, P. Mogre, R. Steinmetz, T. Lorenzen","doi":"10.1145/1806565.1806581","DOIUrl":"https://doi.org/10.1145/1806565.1806581","url":null,"abstract":"Available objective Quality of Experience (QoE) assessment methods for speech and audio quality evaluation are not directly usable for quality rating of professional broadband audio communication applications over IP such as audio contribution links for broadcasting. To fill this gap, we designed a dedicated non-intrusive parametric QoE model for conversational quality rating based on the E-model approach. With this the QoE of Audio Contribution over IP (ACIP) can be monitored. Moreover, the estimated QoE scores can be used for a perceptually-driven Quality of Service (QoS) optimization for ACIP, which has different requirements and characteristics compared to Voice over IP (VoIP). In this paper, we present our ACIP QoE model and propose an objective QoE metric for assessing the listening-only quality in ACIP. The latter is used by us for intrusive QoE evaluations, which are necessary for the derivation of a parametric QoE model. Our experimental methodology is illustrated in depth and we give exemplified results. Finally, we demonstrate the application of our model in perceptually-driven QoS optimization.","PeriodicalId":436504,"journal":{"name":"Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128843824","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: 13

Designing a tit-for-tat based peer-to-peer video-on-demand system 设计一个针锋相对的点对点视频点播系统

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806589

Kévin Huguenin, Anne-Marie Kermarrec, Vivek Rai, M. Steen

引用次数: 11

Tips, tricks and troubles: optimizing for cell and GPU 提示，技巧和麻烦:优化单元和GPU

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806585

H. Stensland, H. Espeland, C. Griwodz, P. Halvorsen

引用次数: 5

Session details: 3D and immersive environments 会议细节:3D和沉浸式环境

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/3251934

Songqing Chen

引用次数: 0