Modifications in Turbo Coding System for Performance Enhancement
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This book contains the information on Turbo CodeSystem and suggested modifications to enhance theperformance of the system.Research in coding theoryhas seen many proposals aimed at the construction ofpowerful codes using block and convolutional codes.Recently, a new forward error control code (FEC)known as Turbo Code is introduced. This new codecombines simple component codes with iterativedecoding process.Turbo code is adopted as FEC in 3rdGeneration Wireless Communication System (UMTS). Thename "Turbo" has been coined in analogy to the Turboengine principle that brings the meaning of powerfu...
This book contains the information on Turbo CodeSystem and suggested modifications to enhance theperformance of the system.Research in coding theoryhas seen many proposals aimed at the construction ofpowerful codes using block and convolutional codes.Recently, a new forward error control code (FEC)known as Turbo Code is introduced. This new codecombines simple component codes with iterativedecoding process.Turbo code is adopted as FEC in 3rdGeneration Wireless Communication System (UMTS). Thename "Turbo" has been coined in analogy to the Turboengine principle that brings the meaning of powerful.This book specifically describes the process ofencoding and decoding turbo codes. A basicdiscussion of iterative decoding is presented.General turbo code performance issues are discussedand observed through simulations. Two novelapproaches to enhance the performance of turbo codesare proposed: a new modified turbo encoder and newunequal power allocation (UPA) scheme for 3G system.
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