A Time Slot Occupancy Method Based on Delay Tolerance Evaluation in Optical Communication Networks

Abstract

The invention discloses a time slot occupancy method based on delay tolerance evaluation in an optical communication network, comprising S1, a current node CH 0 The time slot starts; S2, according to the current node CH 0 with the next hop node CH j The signaling interaction of j, through parallel processing to obtain the LQI value and APT response time corresponding to each j, and calculate the CH 0 to CH j The delay tolerance τ; S3, judge whether the delay tolerance τ ≥ preset threshold T is established, if it is established, enter step S4, if not, enter step S7; S4, the current node CH 0 Give up the uplink transmission opportunity of this time slot, and use the LED broadcast to notify the surrounding adjacent CH nodes that they can occupy the time slot; S5. Determine whether there is a delay tolerance τ' of the adjacent CH nodes that satisfies τ'

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a time slot occupation method based on delay tolerance evaluation in an optical communication network. Background technique [0002] Delay-tolerant networks widely exist in various networks, such as satellite networks, disaster monitoring networks, wildlife tracking networks, underwater communication networks, etc. There are few existing routing solutions for delay-tolerant networks, mainly using store-and-forward technology to store and forward data packets through source nodes or intermediate nodes until they reach the destination node. However, this technology is limited by the energy constraints of nodes, the way of movement, the selection of intermediate nodes, and the limitation of network cache space. There are few existing methods to solve the delay-tolerant state of optical communication networks. Some of them focus on solving the delay-tolerant state ...

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Problems solved by technology

[0003] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art, and to provide a time slot occupancy method based on delay tolerance evaluation in an optical communication network, so as to solve or improve the above-mentioned problems

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