High-performance routing method for opportunistic network based on adaptive summery vector (SV) compression
A vector compression, adaptive technology, applied in the direction of network traffic/resource management, advanced technology, electrical components, etc.
Active Publication Date: 2012-05-02
盐城市盐南高新区西伏河绿色低碳科创园发展有限公司
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[0011] In view of this, the technical problem to be solved by the present invention is to solve the following problems in the existing opportunistic network routing method based on the infection mechanism:
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[0071] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.
[0072] The accompanying drawings are described in detail below:
[0073] figure 1 It is a block diagram of the routing method proposed by the present invention.
[0074] The efficient routing method for opportunistic networks based on adaptive index vector compression consists of 13 operational steps in four stages: node encounter awareness, message exchange with the destination as the met node, adaptive index vector delivery, and message exchange. These 13 steps are : (1) The node broadcasts Hello message periodically; (2) The sensing node encounters; (3) Records the information of the encountered node; (4) Sends the message whose destination is the encountered node; ...
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The invention discloses a high-performance routing method for an opportunistic network based on adaptive summery vector (SV) compression. The method consists of 13 operating steps in four stages, namely a node encounter sensing stage, a stage for exchanging messages of which the destinations are encountered nodes, an adaptive SV transmitting stage and a message exchanging stage. The communication expense of nodes of the opportunistic network is reduced, and the storage for the nodes, the energy consumption and the network bandwidth consumption are also reduced through 3 novel systems for reducing the number of SV messages and Request messages, adaptively compressing the length of the SV messages and shortening the lengths of the SV messages and the Request messages on the premise of not influencing the message transmission function of the opportunistic network; and due to the reduction of expenses on such aspects as node communication, storage, energy and the like, and the saving of network wireless bandwidth resources as well as the efficiency and expandibility of the routing method for the opportunistic network are improved.
Description
technical field [0001] The present invention relates to the field of opportunistic network technology, in particular to an opportunistic network that adopts a routing technology based on an epidemic mechanism and assigns an independent identifier to each node in the network. Background technique [0002] An opportunistic network is a wireless ad hoc network that does not require a complete path between the source node and the destination node, and uses the chance of meeting brought about by node movement to achieve communication, delay and fracture tolerance; in some wireless network application fields It is impossible to establish a fully connected network topology, resulting in the failure of the traditional multi-hop ad hoc network communication protocol to operate normally, while the opportunistic network can complete the data transmission task in the case of wireless link disconnection and network split; it is not only a specific group The network form is also a new net...
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IPC IPC(8): H04W28/06H04W40/02
CPCY02D30/70
Inventor 任智徐中浩陈红陈前斌
Owner 盐城市盐南高新区西伏河绿色低碳科创园发展有限公司