Search for dissertations about: "serially concatenated codes"
Showing result 1 - 5 of 19 swedish dissertations containing the words serially concatenated codes.
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1. Sparse Codes on Graphs with Convolutional Code Constraints
Abstract : Modern coding theory is based on the foundation of the sparse codes on graphs, such as the low-density parity-check (LDPC) codes, and the turbo-like codes (TCs) with component convolutional codes. The success of the LDPC codes and the TCs lies in their ability to perform low-complexity iterative message passing decoding procedures. READ MORE
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2. In-Line Bit Interleaved Serially Concatenated Coded Modulation
Abstract : A communication system using in-line bit interleaved serially concatenated trellis coded modulation (SCTCM) over the additive white Gaussian noise (AWGN) channel is investigated. In-line bit interleaving refers to an interleaving method for which the random bit interleaver is divided into several independent constituent bit interleavers. READ MORE
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3. Serially Concatenated Space-Time Coded Continuous Phase Modulation
Abstract : Certain problems associated with reliable digital wireless communication over a frequency-flat slow Rayleigh fadingchannel are treated, when the transmitted signal is modulated using continuous phase modulation (CPM) due to the desirable properties of CPM. The primary focus of attention is on detection strategies, and the thesis proposes iterative detection algorithms for CPM signals transmitted over frequency-flat slow Rayleigh fading channels. READ MORE
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4. Serially concatenated systems : an iterative coding approach with application to continuous phase modulation
Abstract : .... READ MORE
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5. Some concatenated and iterative decoding approaches for continuous phase modulation
Abstract : Several concatenated and iterative decoding approaches are used toimprove the power efficiency of continuous phase modulation (CPM).First a symbol interleaver is used for serially concatenated CPM(SCCPM). Convergence of iterative decoding for this scheme can beearlier (lower SNR: Signal-to-Noise-Ratio) compared to bitinterleaved SCCPM. READ MORE