Digital communication system design

A bit (binary digit) is the smallest unit of information • N = 2n where N is the number of representations and n is the number of bits (ex. ASCII, Unicode, PCM code etc.) • Data communications transfer information using codes that are transmitted as signals (either analog or digital) • In general, analog lines provide a slow service that contains high error rates.

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Another class of linear codes, known as Convolutional codes. We study the structure of the encoder. We study different ways for representing the encoder.Convolutional codes offer an approach to error control coding substantially different from that of block codes. A convolutional encoder: encodes the entire data stream, into a single codeword. does not need to segment the data stream into blocks of fixed size (Convolutional codes are often forced to block structure by periodic truncation). is a machine with memory.

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EURASIP Journal on Applied Signal Processing 2003:6, 603–614 c 2003 Hindawi Publishing Corporation A Rapid Prototyping Environment for Wireless Communication Embedded Systems Bryan A. Jones Department of Electrical and Computer Engineering, Clemson University, 202A Riggs Hall, Clemson, SC 29634, USA Email: bryan@rice.edu Joseph R. Cavallaro Department of Electrical and Computer Engineering, Rice University, Duncan Hall, MS 380, 6100 S. Main Street, Houston, TX 77005, USA Email: cavallar@rice.

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