Concept
Low-Density Parity-Check (LDPC) codes are a class of error-correcting codes that enable reliable data transmission over noisy communication channels by using sparse bipartite graphs to represent parity-check matrices. They are known for their capacity-approaching performance and are widely used in modern communication systems, such as 5G and Wi-Fi, due to their efficient iterative decoding algorithms like belief propagation.
Relevant Fields:
Concept
Binary encoding is a method of representing information using only two symbols, typically 0 and 1, which is fundamental to the operation of digital systems and computers. It allows for efficient data storage, transmission, and processing by leveraging the binary number system that aligns with the on-off states of electronic circuitry.
Concept
ASCII, or the American Standard Code for Information Interchange, is a character encoding standard that represents text in computers and other devices using numbers. It encodes 128 specified characters into seven-bit integers, covering English letters, digits, and some special symbols, making it fundamental in early computing and data exchange.
Concept
Unicode is a universal character encoding standard designed to support the digital representation of text from all writing systems, symbols, and emojis worldwide. It assigns a unique code point to each character, enabling consistent text representation and manipulation across different platforms and devices.
Concept
Data compression is the process of reducing the size of a data file or stream to save storage space or transmission time while maintaining the essential information. It involves encoding information using fewer bits than the original representation, often leveraging patterns and redundancies in the data.
Error detection and correction are essential techniques in digital communication and data storage to ensure data integrity and reliability. These methods identify and rectify errors that occur during data transmission or storage, preventing data corruption and loss.
Concept
Signal modulation is the process of varying a carrier signal in order to transmit data efficiently over communication channels. It enables the transmission of information over long distances and through various media by adjusting the signal's amplitude, frequency, or phase.
Concept
Base64 Encoding is a method used to encode binary data into an ASCII string format by translating it into a radix-64 representation. This is commonly used to safely transmit data over media that are designed to deal with textual data, ensuring that the data remains intact without modification during transport.
Concept
Character encoding is a system that pairs each character from a repertoire with something else, such as a number or a sequence of bytes, to facilitate the storage and transmission of text in computers and other digital devices. It ensures that text data is consistently represented and interpreted across different platforms and systems, preventing data corruption and misinterpretation.
Concept
Bit rate refers to the number of bits that are conveyed or processed per unit of time, often expressed in bits per second (bps). It is a critical factor in determining the quality and efficiency of data transmission in digital communications and multimedia applications.
Concept
Data transmission is the process of sending digital or analog data over a communication medium to one or more devices, ensuring accuracy and integrity during the transfer. It is fundamental to modern communication systems, enabling the exchange of information across networks and supporting various applications from internet browsing to telecommunication services.
Concept
An optical disc is a storage medium that uses laser technology to read and write data, commonly used for music, video, and data storage. It includes formats like CDs, DVDs, and Blu-ray discs, each offering varying storage capacities and data retrieval speeds.
3