• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of visual communication & image representation >QpS-Optimized Adaptive Multi-layer (OQAM) architecture of wireless network for high quality digital video transmission
【24h】

QpS-Optimized Adaptive Multi-layer (OQAM) architecture of wireless network for high quality digital video transmission

机译：无线网络的QpS优化的自适应多层（OQAM）架构，可实现高质量的数字视频传输

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Quality of Service (QoS) optimization is an important design goal in wireless video transmission. The application (APP) layer 802.11e medium access control (MAC) layer, and physical (PHY) layer of the wireless protocol stack can be jointly designed for the exchange of information. This will optimize the performance of wireless network for real-time digital video transmission. This paper proposes an innovative 'QoS-Optimized Adaptive Multi-layer (OQAM)' architecture. It ensures reliable and high-quality video transmission over communication channels. The channel exhibits wide variability in throughput, delay, and packet loss. The simulation is performed using EvalVid and Network Simulator-2. Enhanced Intra Prediction (EnIP) algorithm with H.264/MPEG4 Advanced Video Coding (AVC) is proposed at the APP layer. This H.264/MPEG4 AVC is a non-scalable video enCOder/DECoder (CODEC). Improved MAC Adaptive Retry Limit (IMAL_r) is proposed as smart-packet drop mechanism at the 802.11e MAC layer. It uses packet overflow drop (P_(ov)) and expired-time packet discard (P_(ex)) algorithm. Enhanced Adaptive Forward Error Correction (EnAFEC) is proposed at the PHY layer. The aforementioned algorithms are jointly considered in the proposed OQAM architecture, which increases the coding efficiency, reduces end-to-end delay and increases reliability of wireless network for real-time Video over Wireless (VoW) transmission.
机译：服务质量（QoS）优化是无线视频传输中的重要设计目标。无线协议栈的应用程序（APP）层802.11e媒体访问控制（MAC）层和物理（PHY）层可以共同设计用于信息交换。这将优化用于实时数字视频传输的无线网络的性能。本文提出了一种创新的“ QoS优化自适应多层（OQAM）”架构。它可确保通过通信通道进行可靠且高质量的视频传输。该通道在吞吐量，延迟和数据包丢失方面表现出很大的可变性。使用EvalVid和Network Simulator-2执行模拟。在APP层上提出了具有H.264 / MPEG4高级视频编码（AVC）的增强型帧内预测（EnIP）算法。此H.264 / MPEG4 AVC是不可缩放的视频编码器/解码器（CODEC）。提出了改进的MAC自适应重试限制（IMAL_r）作为802.11e MAC层的智能数据包丢弃机制。它使用数据包溢出丢弃（P_（ov））和过期时间的数据包丢弃（P_（ex））算法。在PHY层提出了增强型自适应前向纠错（EnAFEC）。在提议的OQAM体系结构中共同考虑了上述算法，从而提高了编码效率，减少了端到端延迟，并提高了无线网络实时视频（VoW）传输的可靠性。

著录项

  • 来源
  • 作者

    S.M. Koli; R.G. Purandare; S.P. Kshirsagar; V.V. Gohokar;

  • 作者单位

    Electronics and Telecommunication Engineering Department, Smt. Kashibai Navale College of Engineering, Vadagaon (Bk), Pune 411 041, Maharashtra, India;

    Electronics and Telecommunication Engineering Department, Vishwakarma Institute of Information Technology, Kondhwa (Bk), Pune 411 048, Maharashtra, India;

    AnchorTek Techno Consultancy Pvt. Ltd., Pune 411 048, Maharashtra, India;

    Electronics and Telecommunication Engineering Department, Shree Sant Gajanan Maharaj College of Engineering, Shegaon, Maharashtra, India;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    OQAM; APP-MAC-PHY; EnIP; IMALr; EnAFEC; EvalVid-NS2; VoW; H.264/MPEG4;

    机译：OQAM;APP-MAC-PHY;EnIP;IMALr;EnAFEC;EvalVid-NS2;发誓;H.264 / MPEG4;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号