Environmental simulator for high-speed communicating network

Abstract

The invention comprises MCU, FPCA, keyboard, liquid crystal screen, memory, PC interface and eight communication node interfaces. The MCU makes system control, and converses the key assignment into matrix function to generate control signal, error -selecting signal and speed-selected signal. FGGA is used to implement the main function of simulator, and to make synchronous or asynchronous series connection with the eight channel node interface. The matrix control signal from MCU controls the data current direction to form a switch matrix, and to normalize the variable channel character into multi error code rates. The error-selected signal is used to control error code selection, load composition, and to output error flow analog characteristic. The communication speed selected signal is used to control and generate clock signal of communication speed and sequence control signal.

Description

technical field [0001] The invention belongs to the technical field of network communication, in particular to a high-speed communication network environment simulator, which can provide an indoor simulation environment for communication network tests and verification of network protocols. Background technique [0002] With the enhancement of people's requirements for network communication, research on network communication (fixed network, mobile network, Ad-hoc network) has been intensified in recent years, and various network protocols and algorithms have been studied. Different from peer-to-peer communication, network communication is a group of users who can communicate with each other at the same time. The facilities that provide interconnection and intercommunication are abstracted into network environments, such as wired switching centers or wireless channels. [0003] Research on large-scale network communication is a complex process, especially the debugging and ve...

AI Technical Summary

Problems solved by technology

During the actual test, it was found that it was difficult to modify the problem on site, so we had to go back to the room for comprehensive consideration, resulting in frequent channel tests, which cannot be supported by manpower and financial resources

[0005] [2] Single channel

At present, the domestic radio transceiver equipment is single, and the frequency band coverage is limited (such as short wave, ultrashort wave, microwave, etc.), and a set of systems cannot verify various protocols.

[0006] [3] Network topology is difficult to control

The current computer serial port rate is up to 115.2kbps, so the communication rate will not be very high, and it is difficult to meet the requirements of communication development

[0012] [2] The channel error code is added in units of data bytes rather than the entire bit stream. It is difficult to truly reflect the characteristics of the channel with parameters, and it is impossible to simulate channels with different characteristics.

[0013] [3] Large size, high cost, no network environment storage function

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