… -Solomon coding, interleaving, and trelliscoding … convolutionalcodes and Viterbi algorithm. Fortunately, it has only one mode in J.83, that is, a 16-state non-systematic rate 1/2 encoder …
… Then we estimate the coding gains of the convolutionalcodes based on minimum codeword … We conjecture that, for 16-QAM and 64-QAM with Gray-coded bit mapping, the coding gain …
… puncturing mechanism in convolutional coding can provide variable coderates through one convolutionalencoder… because Gray coding is used in the constellation map of M-ary QAM …
… 64-QAM with high coderate to achieve high transmission rate. In … STTC distributes a trellis code over multiple antennas and … such as convolutionalcodes (CC), block turbo codes (BTC), …
… the LDPC codes, bit interleaver and M-ary QAM modulation. … interleaver between the convolutionalencoder and the modulator … on the supertrellis combining the convolutionalcode, …
… of this thesis is Adaptive Multi Rate (AMR), the speech coding … various coding modes match the channel error rates. … 2.2 Simplified block diagram of the adaptive multi-rateencoder............…
… QAM mapping scheme is the same with that in 802.11a. The QAM constellation is the gray-mapping square QAM … The constellation of BPSK, QPSK and 16-QAM are shown in Fig. 2-6, …
… The encoded data is then interleaved and mapped onto QAM values. In the receiver path, … the convolutionalencoder to the “zero state”. Because the information conveyed in the RATE…
… Due to use of BICM system, we have to demap a QAM symbol to its corresponding bits before decoding. The operation is called bit demapping. There are two kind of bits can be …