无线通信讲席教授组系列报告：Cross-Layer Design for Multi-Hop Wireless Networks: A Loose Coupling Perspective
报告人:
Ness Shroff
Ohio Eminent Scholar in Networking and Communications Professor of ECE and CSE, The Ohio State University, IEEE Fellow
报告时间:
2009-03-25 14:00
报告地点:
FIT楼多功能厅
主办单位:
电子工程系
简介:
The success of the layered architecture in network design has been its ability to provide modularity and transparency. However, optimizing within communication layers is not enough to obtain the orders-of-magnitude performance gains necessary to fuel major growth in next-generation wireless services. To achieve these performance gains, it is imperative that network protocols and designs are engineered by jointly optimizing across the layers (cross-layer design). Unfortunately, the Achilles heel of cross-layer design is high complexity and the potential to destroy modularity, which could make the overall system fragile. This talk will demonstrate that intelligently designed cross-layer solutions are able to extract provable levels of efficiency, and yet maintain a high degree of modularity and robustness to imperfect decision-making. The approach will be to cast cross-layer design problems as appropriate network optimization problems, and show that the resultant protocols can be viewed as optimizers. Recent results will be described as well as the challenges in developing fully distributed optimal cross-layer design solutions for multi-hop wireless networks. Time permitting, we will also discuss other ongoing projects in my group and some lessons learned that may be helpful to students on how to conduct good research.
