A Time Slot Allocation Method Supporting Multi-Hop Streaming Services in Ad Hoc Networks

Abstract

The invention discloses a method for allocating time slots supporting multi-hop streaming services in an ad hoc network. The steps for realizing the invention are: (1) a source node triggers time slot reservation; (2) an intermediate node forwards an SREQ frame; (3) ) The destination node performs end-to-end time slot allocation; (4) Planning the time slot allocation results. Because the destination node of the present invention performs unified end-to-end time slot allocation through the aggregated information of available time slot sets of all nodes on the multi-hop service flow path, it overcomes the high and complex computing power requirements of centralized time slot allocation in the prior art The problem of low end-to-end throughput of multi-hop service flow in distributed time slot allocation is high. The invention has the advantages that the method is simple and easy to realize, and can improve the end-to-end throughput of the multi-hop service flow, and can be used for the time slot allocation of the time division multiple access protocol in the 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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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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