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:
Mar. 05, 2013
Filed:
Mar. 19, 2010
Shaomin MO, Montville, NJ (US);
John A. Gu, Rockaway, NJ (US);
Jessica Y. Hsu, Washington, DC (US);
Ming Luo, Fairfax, VA (US);
Reza Ghanadan, Berkeley Heights, NJ (US);
Shaomin Mo, Montville, NJ (US);
John A. Gu, Rockaway, NJ (US);
Jessica Y. Hsu, Washington, DC (US);
Ming Luo, Fairfax, VA (US);
Reza Ghanadan, Berkeley Heights, NJ (US);
BAE Systems Information and Electronic Systems Integration Inc., Nashua, NH (US);
Abstract
Time synchronization among nodes in a wireless mobile ad hoc network (MANET) is obtained using a cross layer approach. Each node maintains a routing table that contains entries corresponding to other nodes of the network that are one or more hops away from the node, and topology messages are exchanged periodically among the nodes in order to update their routing tables. A network master node is selected, and remaining nodes that are one or more hops away from the master node are defined as slave nodes. The master node includes master timing information in the topology messages it transmits. The timing information is concatenated to include a first time (T) at which a topology message was received by the master from each of the slave nodes, and a second time (td) at which the master node transmits a topology message after receiving all the topology messages from the slave nodes.