Low obstruction communication router capable of realizing network on optical chip and communication method thereof

Abstract

The invention discloses a low obstruction communication router capable of realizing a network on an optical chip and a communication method thereof. In the current network on chip, Mesh structure network obstruction is large and single node obstruction can probably influence other node communication. By using the router and the method of the invention, the above problem can be solved. The router comprises: N optical waveguides and M micro-ring resonators, which are used to construct the optical transmission network of the network on chip. The horizontal optical waveguides and the vertical optical waveguides are in a cross layout, and the other annular optical waveguides are successively arranged from inside to outside and are intersected with the horizontal optical waveguides and the vertical optical waveguides. The micro-ring resonators are selectively arranged on optical waveguide cross point positions. The communication method adopts a data packet recycling rule based on a hop count or time. When a built chain packet generates the obstruction during a process of reserving an optical transmission network communication path, link resources of the optical transmission network can be timely released according to the recycling rule. By using the router and the method of the invention, the obstruction situation of the network on chip and energy consumption and losses during optical signal transmission on chip can be effectively reduced. Network performance can be increased.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a low-blocking router and a communication method in an Optical-Network-On-Chip communication system, which are used to determine the communication mode between IP cores and the construction of an optical communication network. Background technique [0002] Due to the characteristics of high bandwidth, low loss, low crosstalk and low delay, optical interconnection technology can effectively solve a series of bottleneck problems in the field of traditional electrical interconnection technology of network on chip. Therefore, the optical interconnection technology has become a technology that has attracted much attention in the network on chip. [0003] However, under the current conditions, due to the lack of low-cost, high-efficiency optical buffer devices, and the immaturity of optical logic processing technology, the optical network on chip usually uses optical circuit switch...

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Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies of the above-mentioned prior art, and propose a router and a communication method for realizing low-blocking communication of the network on chip, so as to reduce the low link utilization rate and single node blocking when the Mesh structure of the network on chip adopts optical circuit switching Problems that affect the communication of other nodes can effectively improve the communication efficiency of the network

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