Dirty Paper Coding is a technique in information theory that allows a transmitter to send a message over a channel with interference, without the interference affecting the message's integrity, provided the transmitter knows the interference beforehand. It leverages the concept of pre-subtracting the known interference from the signal, enabling the receiver to decode the original message as if the interference was never present.

Dirty Paper Coding

Information theory is a mathematical framework for quantifying information, primarily focusing on data compression and transmission efficiency. It introduces fundamental concepts such as entropy, which measures the uncertainty in a set of outcomes, and channel capacity, which defines the maximum rate of reliable communication over a noisy channel.

information theory

A transmitter is an electronic device that generates and sends out electromagnetic waves to convey information over a distance, typically used in communication systems. It converts electrical signals into radio waves, which are then received by an antenna and transformed back into electrical signals for interpretation.

transmitter

A message is a unit of communication intended to convey information, thoughts, or emotions from a sender to a receiver. It can be transmitted through various mediums such as spoken words, written text, digital formats, or non-verbal cues, and its effectiveness depends on clarity, context, and the medium used.

message

channel with interference

Interference is a phenomenon where two or more waves superpose to form a resultant wave of greater, lower, or the same amplitude. It is a fundamental concept in physics that explains patterns of constructive and destructive interference, crucial in fields like optics and quantum mechanics.

interference

message's integrity

known interference

pre-subtracting the known interference

signal

In communication systems, a receiver is a device or module that captures and converts transmitted signals into a readable format. It plays a crucial role in ensuring accurate data transmission by filtering noise, amplifying weak signals, and demodulating the received signals.

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