Network Coding Method Based on Intracluster Listening
A network coding and coding technology, applied in the field of network coding, can solve problems such as uneven energy consumption and congestion, and achieve the effect of simple method, low overhead, and conducive to unlimited recoding
Active Publication Date: 2019-08-23
UNIV OF SHANGHAI FOR SCI & TECH
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Then there is still the problem of uneven energy consumption in the backbone structure formed by the cluster head nodes
On the other hand, the application of coding technology in the existing technology is mainly to alleviate traffic congestion and improve throughput through coding, and has nothing to do with energy balance
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[0025] The network coding method based on intra-cluster interception involved in the present invention will be described in detail below with reference to the drawings and embodiments.
[0026] figure 2 It is an example diagram of the network topology structure of network coding based on intra-cluster interception in the embodiment of the present invention.
[0027] Such as figure 2 As shown, the network coding method based on intra-cluster interception has the following steps.
[0028] Step 1: Form multiple cluster structures 1-1, each cluster structure includes a cluster head node 1-1-1 and multiple cluster member nodes 1-1-2. The cluster head node 1-1-1 is periodically elected according to the remaining energy and node density of the node, and the number of cluster member nodes in a cluster structure can be adjusted according to demand.
[0029] Step 2: Form as figure 2 The shown tree structure 1 covering the cluster head node 1-1-1 and the cluster member node 1-1-2,...
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The invention provides a network coding method based on inter-cluster monitoring. The method is characterized by comprising following steps: step 1, forming multiple cluster structures, wherein every cluster structure comprises one cluster head node and multiple cluster member nodes; step 2, forming a tree structure which covers the cluster structures and is equipped with root nodes; step 3, distributing tree addresses to all nodes in the tree structure; step 4, when first data stream and second data stream meet in a current coding node, judging whether the first data stream and the second data stream satisfy a coding condition according to the addresses, if the coding condition is satisfied, carrying exclusive OR operation to the first data stream and the second data stream to form current coding stream; and step 5, updating a current node address as a current temporary source address of the current coding data stream, updating the current temporary source addresses of the first data stream and the second data stream as the current temporary destination addresses of the current coding data stream, and carrying out data forwarding to current coding data packets according to the current temporary source address and the destination addresses.
Description
technical field [0001] The invention relates to a network coding method, in particular to a network coding method based on intra-cluster interception which solves limited energy and unbalanced energy consumption in a wireless sensor network by using network coding. Background technique [0002] On the one hand, in order to reduce the problem of uneven energy consumption of nodes in the wireless sensor network, the existing technology adopts the cluster head rotation policy, that is to say, let the nodes take turns to take the role of the cluster head and collect the data of the cluster members. Then there is still the problem of uneven energy consumption in the backbone structure formed by the cluster head nodes. On the other hand, the application of coding technology in the prior art is mainly to alleviate traffic congestion and improve throughput through coding, and has nothing to do with energy balance. [0003] The application of XOR coding in chain topology and X topol...
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IPC IPC(8): H04L1/00
CPCH04L1/0076
Inventor 杨桂松何杏宇王东方
Owner UNIV OF SHANGHAI FOR SCI & TECH