Method and system for blocking control frame transmission in relay transmission protocol

Abstract

The invention provides a method and system for blocking control frame transmission in a relay transport protocol, and the method comprises the steps: when a source node rS sends a plurality of unicast messages to a destination node rD, the source node rS broadcasts an RTS control frame containing a predetermined transmission path and a forwarding hop count counter on RTS logic information; after receiving the RTS control frame, the path node rX in the network forwards the RTS control frame; after the destination node rD receives the RTS control frame, an arresting relay probe packet BEX is generated; after an intermediate node receives an arresting relay probe packet BEX data packet, the BEX is forwarded when a certain condition is met, and the node state of the intermediate node is marked as R; if the source node rS does not receive the blocking relay probe packet BEX, a conflict scheduling strategy is started, and the RTS control frame application is resent after random backoff for a period of time. The problem of blocking flooding in the relay network can be solved, the time slot distribution efficiency is improved, the network control information overhead is reduced, and the actual rate of a user is improved.

Description

technical field [0001] The present invention relates to the technical field of ad hoc network radio stations, in particular to a control frame transmission method and system in an arresting relay transmission protocol. Background technique [0002] In wireless ad hoc network applications, due to the frequent movement of nodes, the establishment and maintenance costs of routes are relatively large. Therefore, for ad hoc networks with a small number of path nodes, a broadcast transmission method can be adopted: the node receives the source node report Continue to forward the message until the message reaches the destination node. With the increase in the number of intelligent information terminals and the increase in the requirements for communication speed in informationized operations, the broadcast flooding forwarding method can no longer meet the actual use needs. For this reason, a transmission mode of blocking relay is proposed. [0003] The blocking relay transmission...

AI Technical Summary

Problems solved by technology

[0003] The blocking relay transmission protocol in the prior art has the problem of "flooding" caused by a large number of forwarding in multi-hop communication, which has low network time efficiency, high network control information overhead, and low actual information rate of users. Design a perfect control frame structure under the condition of limited time slot and transmission rate

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