Peer-to-peer multimedia applications over wireless networks

通过无线网络的点对点多媒体应用

• 批准号: 238295-2010
• 负责人: Huang, Changcheng
• 金额: $ 1.82万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=570388
• 关键词: Peer; peer; multimedia; applications; over

Supporting multimedia applications has become a formidable task for wireless networks due to limited resources in terms of spectrum, computing capacity, and power supply. In this application, we propose to develop several new mechanisms for addressing issues related to running Peer-to-Peer (P2P) multimedia applications over wireless networks. New technologies such as cooperative communications and cognitive radio networks (CRN) have been shown to have great potential in improving the efficiency of wireless networks. We propose to create a receiver driven MAC (Medium Access Control) protocol which will empower receivers to select relay nodes. Comparing with existing MACs for cooperative communications, our protocol will provide better support for P2P applications which are based on receiver driven architecture. We will also develop an intelligent MAC scheme for CRNs. The scheme will utilize primary users to track the usage of their licensed spectrum and decide intelligently how to share their licensed spectrum with secondary unlicensed users. At network layer, we will design a cooperation-aware routing protocol which will select next-hop nodes based on more stable links which can provide consistent supports for persistent multimedia applications. We will investigate cross-layer optimization for P2P applications over wireless networks so that network efficiency will be maximized. In addition to the cross layer mechanisms mentioned above, we will also explore mechanisms which will make overlay-based approaches more efficient by reducing packet losses within wireless networks. In specific, we will develop a new distributed scheduling algorithm based on proportional packet loss ratios. New peer selection algorithms that provide fairness will be designed. Our proposed mechanisms will help enable P2P multimedia applications over next generation wireless networks with efficient resource utilization and guaranteed Quality of Service (QoS).

由于频谱、计算能力和电源等资源的限制，支持多媒体应用已成为无线网络的一项艰巨任务。在这个应用程序中，我们建议开发几个新机制来解决与在无线网络上运行点对点（P2P）多媒体应用程序相关的问题。