BACKGROUND

Ad-hoc networks, which consist of mobile hosts interconnected by mobile routers, are used when there is no wired infrastructure in place. Due to their multi-hop and dynamic nature, these networks require a distributed routing protocol to forward packets between mobile stations and to and from the Internet. Routers that contain the proper stacks can easily run routing protocols designed for wired networks in an ad-hoc network. However, because wireless networks suffer from low bandwidth and high interference rates, routing protocols should try to use the least possible bandwidth for control traffic. In addition, mobility increases the bandwidth used for the control packets. This increased control overhead leads to congestion, which increases the convergence time of the routing algorithm.

DESCRIPTION

Scientists at the University of California have developed a novel protocol that considerably reduces control overhead in order to increase available bandwidth and conserve power at mobile stations. This new process accomplishes this by using non-optimal routing in table-driven routing protocols to minimize updates and reduce retransmissions.

APPLICATIONS

This invention has several applications in wireless networks, including:

• Mobile networks;
• Community and emergency networks;
• Developing countries where no wired infrastructure exists.

ADVANTAGES

REFER ALSO TO UC CASES 2000-303, 2000-311, 2000-314, 2000-349 THROUGH 356, 2000-360, 2000-380, 2000-383 THROUGH 385

Patent Status

Country	Type	Number	Dated	Case
United States Of America	Issued Patent	7,002,949	02/21/2006	2000-350

Inventors

• Garcia-Luna-Aceves, Jose Joaquin(JJ
• Raju, Jyoti

Other Information

Contact

University of California, Santa Cruz Office for Management of Intellectual Property / technology@ucsc.edu / tel: View Phone Number. Please reference Tech ID #10187.

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ADDITIONAL TECHNOLOGIES BY THESE INVENTORS

• Scalable Integrated Services Architecture For Computer Networks
• Multicast Routing Protocol For Wireless And Mobile Computer Networks
• Receiver Initiated Channel Hopping (Rich)
• On-Demand Loop-Free Multipath Routing
• Differentiating Congestion Vs. Random Loss: A Method For Improving Tcp Performance Over Wireless Links
• Improving Tcp Congestion Control Over Internets With Heterogeneous Transmission Media
• Mpath: A Loop-Free Multipath Routing Algorithm Using Predecessor Information
• Receiver Initiated Multiple Access For Ad-Hoc Networks
• Group Coordination Protocol For Networked Multimedia Systems
• System And Method For Ad Hoc Network Access Employing The Distributed Election Of A Shared Transmission Schedule
• Tree-Based Ordered Multicasting