A cross-layer optimization framework for coded wireless video multicast

编码无线视频组播的跨层优化框架

• 批准号: 397345-2010
• 负责人: Yang, EnHui
• 金额: $ 13.15万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=515504
• 关键词: cross; layer; optimization; framework; coded

It is envisioned that the existing real-time video multicast services will be extended to and offered in wireless environments due to the emergence of broadband wireless access (BWA) technologies such as IEEE 802.16 and Long Term Evolution (LTE). The demand for real-time wireless video multicast services will drive the growth of future carrier networks while pushing bandwidth and accessibility limits. However, to enable a reliable and efficient video multicast service over BWA networks, there are a couple of legacy problems including video quality loss due to packet loss and multi user channel diversity that need to be carefully addressed and solved. In this project, we intend to establish a cross layer optimization framework within which scalable video coding, multiple description coding (MDC), and superposition coded modulation (SPC) can be jointly designed and optimally integrated to overcome both the multi-user diversity and transmission loss problems so as to

可以预见，由于诸如IEEE 802.16和长期演进(LTE)的宽带无线接入(BWA)技术的出现，现有的实时视频多播服务将扩展到无线环境并在其中提供。对实时无线视频组播服务的需求将推动未来运营商网络的增长，同时推动带宽和可访问性限制。然而，为了在BWA网络上实现可靠和高效的视频组播服务，存在着两个遗留问题，包括由于分组丢失而导致的视频质量损失和多用户信道分集，这些问题需要仔细地处理和解决。在这个项目中，我们打算建立一个跨层优化框架，在该框架中，可伸缩视频编码、多描述编码(MDC)和叠加编码调制(SPC)可以联合设计和优化集成，以克服多用户分集和传输损失问题，从而