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| Number | Title | Issue Date |
| 7904945 | System and method for providing security for a wireless network A system and method for providing secure communication between nodes (102, 106, 107) in a wireless multihopping communication network (100). The system and method achieve secure communication in a multihopping wireless network (100) by, for exam... | 03/08/2011 |
| 7796570 | Method for sparse table accounting and dissemination from a mobile subscriber device in a wireless mobile ad-hoc network A system and method for performing continuous accounting on a mobile node within a wireless ad-hoc network, using a sparse matrix method for compaction of the accounting data when forwarding data to a core network. The system and method perform continuous accounting... | 09/14/2010 |
| 7773569 | System and method for efficiently routing data packets and managing channel access and bandwidth in wireless multi-hopping networks A method for routing data packets from a source to a destination in a wireless communication network comprising a plurality of nodes, wherein each node is in uplink-downlink association with at least one neighboring node, and wherein each node comprises a registrati... | 08/10/2010 |
| 7742446 | System and method for performing distributed signal classification for a multi-hop cognitive communication device A system and method for cognitive communication device operation. In accordance with the system and method, a node (102, 106, 107) that communicates in a wireless multihopping communication network (100) uses a receiver (302, 402, 502, 602) to a... | 06/22/2010 |
| 7734809 | System and method to maximize channel utilization in a multi-channel wireless communication network A system and method for data transmission using a multichannel medium access control (MAC) protocol to send small messages on the reservation channel directly without any RTS/CTS handshake or channel switching delays. The message is assigned a special type so that i... | 06/08/2010 |
| 7710986 | Multicast architecture for wireless mesh networks A multicast architecture and method of operation for multi-hop wireless mesh networks is provided. The multicast architecture is above the network infrastructure to identify a group of clients. These clients share the same application and communicate to each other b... | 05/04/2010 |
| 7706776 | Scheme for MAC address privacy in infrastructure-based multi-hop wireless networks A system and method for enhancing media access control (MAC) address privacy in a multi-hop wireless network, comprising providing at least one node which generates a temporary MAC address for itself for use in the network by at least one other node, and which ensur... | 04/27/2010 |
| 7697420 | System and method for leveraging network topology for enhanced security A system and method for locating and using multiple routes to transmit sub-packets of data from a source node to a destination node in an ad-hoc network, thus preventing intermediate nodes in any one transmission path from intercepting a useful amount of information... | 04/13/2010 |
| 7656901 | Software architecture and hardware abstraction layer for multi-radio routing and method for providing the same A system and method that creates an abstraction of the physical layer of a wireless communication network (100), in particular, a wireless ad-hoc peer-to-peer communication network (100), and that normalizes the feedback from the physical layer to enab... | 02/02/2010 |
| 7620076 | System and method for variably inserting training symbols into transmissions by estimating the channel coherence time in a wireless communication network A system and method for controlling the quantity of training symbols in a transmission sequence sent by a terminal (102, 106, 107) in a wireless network (100). The transmission sequence include training symbols and data symbols. The system and method d... | 11/17/2009 |
| 7613458 | System and method for enabling a radio node to selectably function as a router in a wireless communications network A system and method for enabling a mobile user terminal in an ad-hoc packet-switched wireless communications network to selectably operate as a router for other mobile user terminals in the network based on certain criteria. The user terminal comprises a transceiver... | 11/03/2009 |
| 7606187 | System and method to support multicast routing in large scale wireless mesh networks Provided is a system and method for a multicast routing algorithm to work in infrastructure based mesh networks. It chooses access points, fixed infrastructure gateway nodes connected to each other and/or the global internet via a wired/wireless backbone, as a group... | 10/20/2009 |
| 7606176 | System and method to improve the performance of an on demand routing protocol in a wireless network A system and method for improving the performance of an on-demand routing protocol in a wireless network is provided. The invention provides improved system performance of a wireless network by enabling nodes following an on-demand routing protocol to process (and p... | 10/20/2009 |
| 7558818 | System and method for characterizing the quality of a link in a wireless network A system and method for characterizing the quality of a link, in particular, a bi-directional link, between nodes in a wireless communication network, such as a wireless ad-hoc peer-to-peer network, with minimum network overhead. The system and method determine the ... | 07/07/2009 |
| 7542478 | System and method for rate limiting in multi-hop wireless ad hoc networks A system and method to avoid and control the bottleneck points in multi-hop wireless ad-hoc networks is described. This is achieved by using the overheard RTS/(N)CTS information to compute a weighted combination of the node's and neighbors weighted queue size. Rate ... | 06/02/2009 |
| 7522537 | System and method for providing connectivity between an intelligent access point and nodes in a wireless network A system and method enables an ad-hoc communication network to maintain connectivity between intelligent access points and nodes. The method includes: broadcasting an access point advertisement from a sender node to wireless routers; deciding by the wireless routers... | 04/21/2009 |
| 7483705 | System and method for inputting location coordinates into fixed position reference devices used in geo-location applications A system and method for providing geographic location information to of at least one fixed reference device in a wireless network, the method comprising: determining a geographic location of the at least one fixed reference device within an image, such as a Geograph... | 01/27/2009 |
| 7483413 | System and method for managing communication links between nodes in a wireless communication network A system and method for management of communication links between nodes in a wireless communication network (100). The system and method perform the operations of estimating an expected rate of change in the characteristics pertaining to communication over a ... | 01/27/2009 |
| 7447174 | System and method for detecting node mobility based on network topology changes in a wireless communication network Techniques are provided for determining mobility of a first node in an ad hoc network. A particular node generates a fixed neighbor node table comprising second nodes in the area of the particular node which are not mobile. The particular node can monitor changes be... | 11/04/2008 |
| 7433322 | Method and system for measuring the time-of-flight of a radio signal A method and system for measuring the time-of-flight (TOF) of a radio signal is described herein. According to various implementations, the system uses multiple antennas, each of which receives direct path radio signals and reflected radio signals. In various implem... | 10/07/2008 |
| 7433691 | System and method for enabling an access point in an ad-hoc wireless network with fixed wireless routers and wide area network (WAN) access points to identify the location of subscriber device A system and method which enables access points in a wireless ad-hoc communications network to effectively and efficiently determine the approximate location of a mobile node without performing a broadcast flood. The system and method enables a message to be efficie... | 10/07/2008 |
| 7412241 | Method to provide a measure of link reliability to a routing protocol in an ad hoc wireless network A system and method for locating optimal routes between source and destination nodes in a communications network, in particular, a wireless ad-hoc communications network by employing a link reliability algorithm that estimates the reliability of links between nodes ... | 08/12/2008 |
| 7408911 | System and method to decrease the route convergence time and find optimal routes in a wireless communication network A system and method for decreasing the route convergence time in a wireless communication network, such as a wireless ad-hoc peer-to-peer network, by finding an alternate route if the nodes anticipate weakening or breakage of a route currently in use. The system and... | 08/05/2008 |
| 7409220 | Autonomous reference system and method for monitoring the location and movement of objects The present invention relates to a system and method for deploying devices, such as routers (107) and mobile nodes (102) or tags, that communicate in a wireless multihopping ad-hoc communication network (100), that enables a monitoring system su... | 08/05/2008 |
| 7403492 | Method to support multicast routing in multi-hop wireless networks A system and method for supporting multicast in highly dynamic wireless multi-hop networks, such as ad-hoc networks, with good scalability. The system and method provide a multicast routing algorithm to work in wireless ad-hoc networks without any fixed infrastructu... | 07/22/2008 |
| 7382759 | System and method for associating different types of nodes with access point nodes in a wireless network to route data in the wireless network A method and system for routing data in a wireless network (400) that enables all nodes (106, 402, 404, 406, 408) to find routes to each other even if the nodes (106, 402, 404, 406, 408) are non-meshed which are incapable of operating as a route... | 06/03/2008 |
| 7382804 | Bandwidth efficient system and method for ranging nodes in a wireless communication network The present invention provides a bandwidth efficient system and method of measuring the range between nodes (102, 106, 107) in a wireless communications network (100) with one-way data transfer, where each node (102, 106, 107) periodically trans... | 06/03/2008 |
| 7350303 | Level, angle and distance measuring device The portable self-contained horizontal and vertical level, angle and distance measuring device is suitable for indicating whether or when two or more points are level with each other and for measuring distances and angles between two or more points, a point and a li... | 04/01/2008 |
| 7349380 | System and method for providing an addressing and proxy scheme for facilitating mobility of wireless nodes between wired access points on a core network of a communications network A communications network which is capable of effectively and efficiently handling mobility of wireless user terminals between access point nodes of a packet-switched network with minimal overhead and packet loss, and a method for using the same. The communications n... | 03/25/2008 |
| 7349441 | Method for optimizing communication within a wireless network A system and method for providing a MAC protocol that optimizes communication within a wireless network. Specifically, the system and method operates with Mobile Terminals, Fixed References and at least one Main Control, wherein a method defines the sequence of mess... | 03/25/2008 |
| 7349362 | Method and system for implementing the time division multiple access method to AD-HOC multihopping wireless networks A system and method for synchronizing a wireless network comprising a first node operable pursuant to a first time-division multiple access (TDMA) scheme and a second node operable pursuant to a second TDMA scheme, wherein the first TDMA scheme and the second TDMA s... | 03/25/2008 |
| 7280483 | System and method to improve the network performance of a wireless communications network by finding an optimal route between a source and a destination A system and method for calculating an optimal route at a node by making use of routing metrics which if carefully chosen, can provide stability to the network and also provide features like Self Healing and Load Balancing. A Routing metric is calculated as a scalar... | 10/09/2007 |
| 7280555 | System and method employing algorithms and protocols for optimizing carrier sense multiple access (CSMA) protocols in wireless networks A system and method for achieving enhanced CSMA/CA which improves channel availability and quality of service (QoS) in a wireless communications network. The system and method establish channels to enable communication between nodes in a communication network, based... | 10/09/2007 |
| 7266104 | Time division protocol for an AD-HOC, peer-to-peer radio network having coordinating channel access to shared parallel data channels with separate reservation channel An ad-hoc, peer-to-peer radio system includes a series of radio terminals forming a service group, each radio terminal having a transceiver for communicating with terminals in the same service group, computer means, and memory for storing program software. Within th... | 09/04/2007 |
| 7251238 | System and method for routing data between different types of nodes in a wireless network A method and system for routing data in a wireless network (400) that enables all nodes (106, 402, 404, 406, 408) to find routes to each other even if the nodes are incapable of operating as a router to route packets received from other nodes (106, ... | 07/31/2007 |
| 7221686 | System and method for computing the signal propagation time and the clock correction for mobile stations in a wireless network A system and method for enabling a node, such as a mobile user terminal in a wireless communications network, such as an ad-hoc network, to effectively and efficiently determine a clock correction factor for its local clock relative to a local clock of at least one ... | 05/22/2007 |
| 7215638 | System and method to provide 911 access in voice over internet protocol systems without compromising network security A system and method to provide emergency call access in Voice over Internet Protocol (VoIP) systems without compromising network security. The system and method enables VoIP emergency signal detection at a user device, and transmission of the VoIP emergency signal f... | 05/08/2007 |
| 7215966 | System and method for determining location of a device in a wireless communication network A system and method for message exchanges in a wireless communication network which minimize network overhead and offers fast determination of Coordinates of a device. A system and method controls a node to exchange small, structured messages with one or more refere... | 05/08/2007 |
| 7212504 | Time division protocol for an ad-hoc, peer-to-peer radio network having coordinating channel access to shared parallel data channels with separate reservation channel A novel protocol for an ad-hoc, peer-to-peer radio network that provides collision-free channel access with an emphasis on improving geographic reuse of the frequency spectrum. The protocol of the invention is executed on the reservation or control channel, and prov... | 05/01/2007 |
| 7205868 | Variable radio frequency band filter A variable radio frequency band filter capable of varying the resonance frequency band comprises a housing having a support; a number of resonator rods arranged along the longitudinal direction of the housing; at least one tuning rod positioned on top of the resonat... | 04/17/2007 |
