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Basic Principles of OFDM Notes 1. Introduction The basic principle of OFDM is to split a high-rate datastream into a number of lower rate streams that are transmitted simultaneously over a number of subcarriers. Because the symbol duration increases for lower rate parallel subcarriers, the relative amount of dispersion in time caused by multipath delay … Read more
Channel coding Definition A coding technique is described which improves error performance of synchronous data links without sacrificing data rate or requiring more bandwidth. This is achieved by channel coding with expanded sets of multilevel/phase signals in a manner which increases free Euclidean distance. Soft maximum–likelihood (ML) decoding using the Viterbi algorithm is assumed. … Read more
Window Programming Notes The Window Architecture The concept of handlers, The concept of window class, Registering a Window class, Style like CS HREDRAW, Instance handlers, Icon handlers, Cursor handlers, Menu name, Creating a Window, Class names – predefined and user defined, Window name, Draw styles, Width, height etc., Parent – Child Windows, The concept … Read more