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- W2254835386 abstract "We present Space-Time Trellis Coded Code Division Multiple Access systems, which maintain the full diversity and coding gain of Space-Time Trellis Codes(STTC) and have the immunity to performance degradation caused by multipath fading. These STTC CDMA systems are constructed by adding the spreading and despreading processes of PN codes to STTC systems. In multipath fading channels, delay spreaded signals are detected and combined, then decoded. According to the combining and decoding methods, there are four decoding methods. There are optimum ML decoding without combining, adding multipath signals in each receive antenna before decoding, combining multi path signals in each antenna before decoding, and combining all received signals before decoding. Performance of these methods is proportional to complexity. Besides, all methods are shown to compensate the irreducible error rate which appears in multipath fading channels." @default.
- W2254835386 created "2016-06-24" @default.
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- W2254835386 date "2002-01-01" @default.
- W2254835386 modified "2023-09-24" @default.
- W2254835386 title "Optimum and Sub-optimum Decoding Methods of Space-Time Trellis Coded Code Division Multiple Access Systems" @default.
- W2254835386 hasPublicationYear "2002" @default.
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