A method for obtaining the maximum number of hops suitable for star-shaped wireless multi-hop relay networks
A wireless multi-hop and relay network technology, applied in wireless communication, network planning, electrical components, etc., can solve the problem that nodes cannot obtain transmission bandwidth
Inactive Publication Date: 2017-12-19
WUHAN UNIV
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Problems solved by technology
[0003] Due to the limited resources such as network transmission bandwidth, the multi-hop relay network is bound to be unable to extend infinitely.
Too many hops will cause nodes at the edge of the network to fail to obtain sufficient transmission bandwidth
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[0029] In order to make the purpose of the present invention, technical solutions and advantages clearer, the following will be figure 1 The shown one-dimensional linear multi-hop relay network is taken as an example to describe the present invention in detail. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0030] Step 1, analyze the multi-hop relay network structure.
[0031] See figure 1 , the one-dimensional linear multi-hop relay network in this embodiment consists of an access point v 0 and multiple common nodes v i Composition, i=1,...,N. All nodes are deployed in a straight line, and only adjacent nodes can communicate with each other; the data of each nod...
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The invention discloses a maximum-hop-count acquisition method suitable for a star wireless multi-hop relay network. The maximum-hop-count acquisition method comprises the steps of 1 establishing flow conservation models of common nodes, 2 establishing interference models of nodes, 3 establishing data transmission amount models of the common nodes, 4 using maximum access point throughput capacity as an optimization objective and using the flow conservation models and the data transmission amount models of the common nodes and the interference models of the nodes as constraint conditions to establish the linear programming problem for calculating maximum hop count, and 5 solving the linear programming problem to obtain the maximum hop count. The maximum-hop-count acquisition method considers the complicated interference models of the nodes and the bandwidth sending requirements of the nodes in the star wireless multi-hop relay network simultaneously and can provide a theoretical basis for reasonable hop count determination for network deployment.
Description
technical field [0001] The invention belongs to the technical field of multi-hop relay networks, and in particular relates to a method for obtaining the maximum number of hops applicable to a star-shaped wireless multi-hop relay network. Background technique [0002] The massive deployment and application of WIFI networks have brought great convenience to people's lives. At present, most WIFI networks adopt a single-hop networking method, which makes each WIFI network only cover a small communication range. In order to overcome the limitation of coverage, the future WIFI network may adopt the way of multi-hop relay for networking. The star-shaped wireless multi-hop relay network is a networking method in which the access point is the center and the network is extended through hop-by-hop relays. In the future, the star wireless multi-hop relay network will become a common network, which can not only be applied to wireless local area networks such as WIFI, but also to some s...
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IPC IPC(8): H04W16/18
CPCH04W16/18
Inventor 陈健廖子龙李德识
Owner WUHAN UNIV