Bit-interleaved coded modulation for hybrid RF/FSO systems
نویسندگان
چکیده
منابع مشابه
Bit-Interleaved Coded Modulation
The principle of coding in the signal space follows directly from Shannon’s analysis of waveform Gaussian channels subject to an input constraint. The early design of communication systems focused separately on modulation, namely signal design and detection, and error correcting codes, which deal with errors introduced at the demodulator of the underlying waveform channel. The correct perspecti...
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Adaptive coded modulation is a powerful method for achieving a high spectral efficiency over fading channels. Recently proposed adaptive schemes have employed set-partitioned trelliscoded modulation (TCM) and have adapted the number of uncoded bits on a given symbol based on the corresponding channel estimate. However, these adaptive TCM schemes will not perform well in systems where channel es...
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In this paper interleaver design for bit-interleaved coded modulation and systems with channel-state information at the transmitter is investigated. Based on the bit level capacities of an equivalent channel model an advantageous interleaver design is proposed. Understanding the varying level capacities as the result of a “fading” process, suited bit metric arrangements in the decoder can signi...
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ژورنال
عنوان ژورنال: IEEE Transactions on Communications
سال: 2009
ISSN: 0090-6778,1558-0857
DOI: 10.1109/tcomm.2009.12.080396