Cross-layer optimization in wireless data networks

无线数据网络的跨层优化

• 批准号: 356022-2008
• 负责人: GhaderiDehkordi, Majid
• 金额: $ 1.16万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=459700
• 关键词: Cross; layer; optimization; wireless; data

Data networks such as the Internet have traditionally been designed in a layered fashion where each layer communicates only with the layers directly above and below it through predefined interfaces. A layered architecture has also been implemented for wireless networks mainly because of inter-operability issues with legacy wireline networks. However, it is well known that such a layered design may not be appropriate for wireless networks due to the specific characteristics of wireless medium, i.e. high error rate and large rate variability, which can negatively impact higher layer network protocols. In particular, it has been suggested that some interactions across different protocol layers can significantly improve the performance of wireless systems.

像Internet这样的数据网络传统上是以分层的方式设计的，其中每一层只通过预定义的接口与直接在它上面和下面的层通信。由于传统有线网络的互操作性问题，无线网络也实现了分层架构。然而，众所周知，由于无线介质的特定特性，即高错误率和大速率可变性，这种分层设计可能不适合无线网络，这可能会对更高层的网络协议产生负面影响。特别是，有人建议跨不同协议层的一些交互可以显著提高无线系统的性能。