The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2010
Filed:
Feb. 12, 2007
Seongho Cho, Seoul, KR;
Chong-kwon Kim, Seoul, KR;
Seongho Cho, Seoul, KR;
Chong-kwon Kim, Seoul, KR;
Abstract
Multi-hop wireless networks have benefits in coverage extension and throughput improvement. In this multi-hop wireless networks, multiple channels are available to improve system performance through concurrent transmission. In this invention, a multi-channel assignment method is described. For efficient utilization of multiple channels considering different channel condition at each node, the multi-channel assignment method is comprising the steps of: a) gathering neighbor relay node information by relaying control messages which include node information, such as the list of neighbor nodes, the preferable channel list of nodes, and the number of available radio interfaces; b) connectivity graph construction, by generating the multi-graph connectivity graph from the gathered node information; c) conflict graph composition, by generating the multi-channel conflict graph which exhibits interference among links from the multi-graph connectivity graph; and d) multi-channel assignment, by allocating channels to links considering channel interference by referring the multi-channel conflict graph using the list coloring algorithm.