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Name service in a multihop wireless ad hoc network

A wireless ad hoc network and radio distance technology, applied in wireless communication, radio/inductive link selection arrangement, network topology, etc., can solve problems such as unavailability, impossible business, and easy damage

Active Publication Date: 2007-12-19
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The fact that a central Domain Name System (DNS) has the disadvantage that it is at the center means it acts as a single point of failure that is vulnerable to corruption
During the update of such a central database, it may become unavailable for a certain period of time, making business within the network impossible or at least difficult

Method used

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  • Name service in a multihop wireless ad hoc network
  • Name service in a multihop wireless ad hoc network
  • Name service in a multihop wireless ad hoc network

Examples

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Embodiment Construction

[0039] Figure 1 shows a multi-hop wireless ad hoc network or cell 10 comprising a number of nodes 1, 2, 3, 4, 5 as part of the network 10 for the sake of example, according to the invention. There is no limit to the number of nodes that can be part of the network. The ad hoc network can then be connected to another fixed or wireless network 12, such as the Internet, via one or several nodes acting as gateways. There is some type of routing protocol available for keeping a routing table with knowledge of the different nodes available and network address information there, as well as paths to gateways within the network.

[0040] In this example, node 1 of a user named X wants to communicate with a user named Y. To do this, X needs to translate user name Y into a network address. In what follows, the routing protocol will be able to discover user Y in the network. Eventually communication is established between X and Y. The present invention uses a method for updating a data...

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PUM

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Abstract

A naming service in a multihop wireless ad hoc network having a plurality of network nodes. A database in each node stores information associating user information with network information. The stored user information may include user identifications, available services, authority levels of users, and network addresses. When changes occur to user information, network topology information, or network infrastructure information in a given node's database, the naming service automatically updates the databases in other nodes.

Description

technical field [0001] The present invention generally relates to name services in ad hoc networks, and in particular to distributed auto-discovery name services for multi-hop ad hoc networks. Background technique [0002] There is growing interest in the development and deployment of wireless multi-hop ad hoc networks in several different application areas within commercial, special purpose equipment, and for government purposes. Commercial applications of ad hoc networks can be used, for example, for hotspot devices during special events. Hotspots are those localized areas that provide wireless access to paying subscribers so that they can contact a network such as the Internet or a private network. Dedicated equipment can be within the company or during special events. [0003] A government application could be in a disaster area, during a rescue operation within a military application, or during a special event. [0004] Since the multi-hop wireless ad hoc network is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04Q7/38H04W84/18
CPCH04L61/1541H04L29/12113H04W84/18H04L61/4541
Inventor H·里奥马L·阿克塞尔森
Owner TELEFON AB LM ERICSSON (PUBL)