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APPARATUS AND METHOD FOR GENERATING AND DECODING FORWARD ERROR CORRECTION CODES HAVING VARIABLE RATE IN A HIGH-RATE WIRELESS DATA COMMUNICATION SYSTEM
APPARATUS AND METHOD FOR GENERATING AND DECODING FORWARD ERROR CORRECTION CODES HAVING VARIABLE RATE IN A HIGH-RATE WIRELESS DATA COMMUNICATION SYSTEM
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机译:在高速率无线数据通信系统中具有可变速率的前向纠错码的生成和解码的装置和方法
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摘要
An apparatus for generating QC-DBTC. The apparatus includes a QC-DBTC encoder which receives an information symbol stream and generates a plurality of systematic symbol streams and a plurality of parity symbol streams according to a given code rate. The apparatus further includes a quad-symbol mapper which quad-maps the systematic symbol streams to one symbol stream, a channel interleaver which independently interleaves the quad-mapped systematic symbol stream and the parity symbol streams, quad-demaps the quad-mapped systematic symbol stream, interlaces symbols in parity symbol streams, and serial-concatenates the quad-demapped systematic symbol stream to the interlaced parity symbol streams. A duo-binary turbo code generator is further provided to repeat the serial-concatenated symbol stream, and select a predetermined number of symbols from the repeated symbol stream according to a code rate and selection information, thereby generating QC-DBTC codes.
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