Hierarchical routing method based on different power network card
A network card and power technology, applied in data exchange networks, data exchange details, transmission systems, etc., can solve the problems of location service packet occupation, long location information update time, etc., to reduce data discarding and retransmission, and avoid conflicts. , the effect of improving the location update speed
Inactive Publication Date: 2010-07-28
BEIHANG UNIV
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[0004] For this reason, the present invention proposes a hierarchical routing method based on different power network cards, which mainly solves the problem of long update time of location information in routing technology based on location information and the bandwidth problem of location service messages occupying data services
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[0035] The present invention is a method for improving the routing technology based on location information applied in wireless networks by using asymmetric dual channels. Including: 1. Using asymmetric dual-channel technology; 2. Selecting nodes called cluster heads for location service message forwarding in the network; 3. Using these cluster head nodes to build a location message forwarding service covering all nodes in the entire network The internet.
[0036] The so-called asymmetric dual-channel technology means that each node in the network is equipped with two network cards with adjustable power. The high power is used for location services and the small power is used for data transmission. Each node in the network has location services and data There are two working modes of transmission, the location service mode works under high power, and the transmission radius is R; the data transmission mode works under low power, and the transmission radius is r, and r is much ...
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A hierarchical routing method based on the network cards of various powers includes the following steps: 1) outfitting two network cards with adjustable power for each node, the one with the bigger power is for location service, the one with the smaller power is for data transmission, the location service mode works under the bigger power, the data transmission mode works under the smaller power,and both of the two modes work in different channels; 2) selecting cluster nodes in network for transferring a location service message; 3) using the cluster nodes to construct a location message transferring service network covering all the nodes in the network; 4) the cluster nodes normally work under the data transmission mode, and shift to work under the location service mode when receiving the location service message to transfer; the normal nodes work under the data transmission mode, only transferring a data message but not the location service message, and when receiving the location service message, the normal nodes update a location information table maintained by themselves according to the message but not transfer the message. The invention can realize that the location information in the routing technology based on the location information can reach rapidly.
Description
technical field [0001] The invention relates to a method for improving a routing technology based on location information in a wireless network by using a power-adjustable dual network card, and belongs to the technical field of wireless network routing. Background technique [0002] Traditional Ad Hoc routing protocols mainly include DSR (Dynamic Source Routing), AODV (Ad-Hoc On-demand Distance Vector Routing), DSDV (Destination-Sequenced Distance-Vector) and FSR (Fisheye State Routing). Due to the broadcast characteristics of route discovery and long paths, routes are prone to failure, resulting in a large amount of routing overhead. One of its main disadvantages is that it is not suitable for medium-to-large-scale, medium-to-high-speed movement occasions, so many location-based routing protocols have been proposed. , used to solve the shortcomings of traditional routing protocols. The location-based routing protocol uses the location information of nodes to complete data...
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IPC IPC(8): H04L29/06H04L12/56H04L12/02H04W40/10
CPCY02D30/70
Inventor 吴威曹靖刘丽艳周忠赵沁平
Owner BEIHANG UNIV