Data forwarding method based on receiver route in wireless self-organizing network
A wireless self-organization and receiver technology, applied in the direction of data exchange through path configuration, data exchange network, digital transmission system, etc., can solve the large transmission delay, without considering the node position (node distribution, reduce the next hop data transmission Issues such as the probability of success to achieve the effects of enhancing reliability, prolonging survival time, and balancing energy consumption
Inactive Publication Date: 2009-07-01
INST OF SOFTWARE - CHINESE ACAD OF SCI
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The forwarding priority of the IGF protocol takes the energy factor into account, but the limitation of the forwarding area will exclude some nodes that are originally suitable for forwarding data, reducing the success probability of the next hop data transmission; when the network node density is low, it will lead to greater transmission delay
[0009] The existing routing mechanism does not comprehensively consider the information of nodes in the calculation of forwarding priority, especially the location of nodes (node distribution), which is not conducive to timely and accurate selection of suitable next-hop forwarding nodes
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[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the following is combined with specific embodiments, and refers to the processing flow of forwarding priority Figure 4 , to further describe the present invention in detail.
[0039] 1) In order to calculate the forwarding priority, all nodes record their own communication radius R and their own initial energy E when the network starts 0 ;
[0040] 2) The data packet contains the location information field of the sending node and the location information field of the target node. For a data packet that needs to be sent (or forwarded), the sending node writes its own location information into the location information field of the sending node in the data packet. If the sending node is the data source node, write the location information of the target node into the location information field of the target node in the data packet; if the sending node is a node forwarding th...
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The invention discloses a receiver routing-based data forwarding method in a wireless Ad hoc network. The method calculates forwarding priority of a receiving node by comprehensive consideration of three factors including the distance from the receiving node to a target node, the additional coverage area of the receiving node and the residual energy of the receiving node; and the receiving node starts a timer to conduct data forwarding according to the calculation result of the forwarding priority. In the method, the priority calculation is easier, which is favorable for timely selecting a proper receiving node as a forwarding node of a next hop and improving the probability of success and the reliability of data forwarding.
Description
technical field [0001] The invention relates to a data forwarding method in a wireless ad hoc network, in particular to a data forwarding method based on receiver routing in the wireless ad hoc network, belonging to the field of wireless communication. Background technique [0002] In wireless ad hoc networks, due to node movement, node failure, or interference from the environment on wireless links, the network topology changes dynamically, and sometimes there is no end-to-end data transmission path between two nodes in an instant. If a static end-to-end routing mechanism is adopted, or the sender specifies the next-hop forwarding node, the routing maintenance overhead will be high, the data transmission efficiency will be low, and even data transmission will be difficult to achieve. [0003] The receiver-based routing mechanism is a relatively novel data transmission protocol. In this type of protocol, the sending node does not designate a specific neighbor node to forward...
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IPC IPC(8): H04L12/56H04L12/28H04L47/6275
Inventor 孙利民皇甫伟蒋文涛李连
Owner INST OF SOFTWARE - CHINESE ACAD OF SCI