Time slot allocation method for supporting multi-hop streaming service in self-organizing network
A self-organizing network and time slot allocation technology, applied in network topology, electrical components, wireless communication, etc., can solve the problem of low end-to-end throughput of multi-hop business flows, reduce complexity, and improve end-to-end throughput Quantity, the effect of improving efficiency
Active Publication Date: 2020-06-05
XIDIAN UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art, and propose a time slot allocation method supporting multi-hop streaming services in an ad hoc network to solve the problem of low end-to-end throughput for multi-hop service streams in an ad hoc network question
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[0030] The present invention will be further described below in conjunction with the accompanying drawings.
[0031] Refer to attached figure 1 , to further describe the specific steps for realizing the present invention.
[0032] Step 1, the source node triggers slot reservation.
[0033] The multiple access control layer MAC of the source node in the self-organizing network uses a perceived multi-hop service flow to construct a time slot reservation request SREQ frame and broadcast it to trigger the time slot reservation.
[0034] The multi-hop service flow includes source address, destination address, service flow type, source port number, destination port number and required bandwidth of the service flow.
[0035] The construction of the time slot reservation request SREQ frame refers to encapsulating the source address, destination address, service flow required bandwidth, path node information and available time slot set information of the path node into a data frame. ...
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The invention discloses a time slot allocation method for supporting a multi-hop streaming service in a self-organizing network. The method comprises the following steps that: (1) a source node triggers time slot reservation; (2) the intermediate node forwards an SREQ frame; (3) a destination node performs end-to-end time slot allocation; (4) a time slot allocation result is planned. The destination node performs unified end-to-end time slot allocation through the collected available time slot set information of all nodes on the multi-hop service flow path, so the problems of high requirementand high complexity of centralized time slot allocation calculation capability and low end-to-end throughput of distributed time slot allocation multi-hop service flow in the prior art are solved. Themethod has the advantages that the method is simple and easy to implement, the end-to-end throughput of the multi-hop service flow can be improved, and the method can be used for time slot allocationof a time division multiple access protocol in a wireless ad hoc network.
Description
technical field [0001] The present invention relates to the technical field of communication, and further relates to a method for allocating time slots supporting multi-hop streaming services in an ad hoc network in the technical field of wireless communication. Based on the traditional time division multiple access technology TDMA (time division multiple access) time slot allocation in self-organizing networks, the present invention searches for a multi-hop service flow for end-to-end unified time slot according to the destination node and bandwidth requirement information of the service flow. Allocation, so as to achieve the purpose of improving end-to-end high throughput. Background technique [0002] The time slot allocation method is the key technology of the TDMA multiple access protocol. For wireless ad hoc networks, there are certain problems in both the traditional hop-by-hop allocation algorithm and the centralized allocation algorithm. The hop-by-hop allocation al...
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Login to View More IPC IPC(8): H04W72/04H04W72/08H04W84/18
CPCH04W72/0446H04W84/18H04W72/543H04W72/20
Inventor 史琰代良全盛敏刘俊宇白卫岗文娟
Owner XIDIAN UNIV