ANALISIS PENGGUNAAN BIT STUFFING PADA FRAME HIGH LEVEL DATA LINK CONTROL ( HDLC )

LABI, IGNASIUS (2018) ANALISIS PENGGUNAAN BIT STUFFING PADA FRAME HIGH LEVEL DATA LINK CONTROL ( HDLC ). Skripsi thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

Data communication is the process of sending information using the data link function, frame formation, data link synchronization and channel configuration. The main task of the data link layer is to facilitate the transmission of raw data and transform it into channels that are free of transmission errors. The physical layer receives and sends bit flows without filter, so it depends on the data link layer to recognize the frame boundaries. One can use it by attaching special bits to the first and the last of the frame. To have a free error communication system, there needs an algorithm to be applied. The use of the alogarithm is to avoid the appearance of the same flag pattern in the HDLC frame while sending the data. In this Thesis, the author made a simulation of the use of bit stuffing in HDLC frames using the Scilab GUI. The purpose of this thesis is to make the use bit stuffing techniques easier for users to understand. The method of inputting data in this simulation is in the form of texts or characters. The text or characters will be converted into binary numbers using ASCII code and it will be processed according to the bit stuffing algorithm. If one find a row of five bits 1 (one) sequentially, it will automatically insert the data link a 0 (zero) bit to the outflow. While the recipient finds 5 (five) bits 1 (one) bits entered sequentially followed by a 0 (zero) bit, the receiver will automatically empties or deletes the 0 (zero) bit.

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