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. 21, 2012
Filed:
Aug. 09, 2006
Pradeep K. Singh, Arlington, VA (US);
Alain J. Cohen, Washington, DC (US);
Alejandro Talavera-martinez, Rockville, MD (US);
Arun Pasupathy, Gaithersburg, MD (US);
Poonam Singh, Arlington, VA (US);
Ibrahim Utku Moral, Gaithersburg, MD (US);
Pradeep K. Singh, Arlington, VA (US);
Alain J. Cohen, Washington, DC (US);
Alejandro Talavera-Martinez, Rockville, MD (US);
Arun Pasupathy, Gaithersburg, MD (US);
Poonam Singh, Arlington, VA (US);
Ibrahim Utku Moral, Gaithersburg, MD (US);
OPNET Technologies, Inc., Bethesda, MD (US);
Abstract
Simulation models of media access control and physical layer characteristics facilitate the simulation/emulation of a variety of phenomena that affect transmissions via a wireless media. Such phenomena include media access contention delays, packet drops, and retransmissions that are generally dependent upon changes in transmitter/receiver locations. Each wireless environment is characterized by a model of the communication channel that characterizes transmission effects based on the number of competing transmitters in the environment, which is dynamically determined based on the location of each node in the environment. Additionally, the location of nodes is used to simulate the effects of 'hidden nodes', nodes that are unknown to a transmitting node but can interfere with the reception of transmissions at a receiving node. Each device/node model in the wireless environment preferably accesses the same model of the communication channel, thereby minimizing the amount of detail required at each device model.