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Bo Han is a senior member of technical staff at AT&T Labs Research. He received the Bachelor's degree in Computer Science and Technology from Tsinghua University, the M.Phil. degree in Computer Science from City University of Hong Kong and the Ph.D. degree in Computer Science from the University of Maryland. His research interests are in the areas of wireless networking and mobile computing, with a focus on developing simple yet efficient and elegant solutions for real-world networking and systems problems.
QoS In Multi-Hop Wireless Networks,
July 9, 2013
A path configuration message is sent to nodes in a multi-hop network along a path between a source node and destination nodes. The path configuration message includes path information and one or more special channel access parameters associated with the path information. The path configuration message temporarily changes the channel access priority for packets matching the path information in the special message. The nodes along the path therefore have higher channel access priority relative to other nearby nodes and other traffic flows. At the end of the a length of a time determined by a time to live parameter in the special message, the nodes resume using default channel access parameters in place of the special channel access parameters for packets matching the path information.