Bit-interleaved coded DPSK with cyclic delay diversity: design and analysis
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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The role of the interleaver in a Bit Interleaved Coded Modulation (BICM) system is investigated. Square block interleavers and convolutional interleavers are compared to the random interleaver originally used by Zehavi [1]. It is shown that for short latencies (20 ms) the square block interleaver performs better than the random interleaver. However, when the side of the square block interleaver...
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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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We consider a simple method to improve the adaptiveness and flexibility of bit-interleaved coded modulation (BICM) with different iterative decoding schemes for bandwidth efficient transmission. The basic idea is to apply different signal constellations and mappings within one code word. The combination of different signal constellations allows a fine adaptation of the data rate to the channel ...
متن کاملDesign and Analysis of Linear Precoders for Bit-Interleaved Coded Modulation with Iterative Decoding
In this paper, we consider linear precoders for Bit-Interleaved Coded Modulation with iterative decoding (BICM-ID) on AWGN channels. In a BICM-ID set-up, the encoder and symbol mapper are separated by an interleaver in order to achieve better performance and to allow a simplified (yet sub-optimal) decoding strategy. However, careful design of the symbol mapper is imperative in order to achieve ...
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ژورنال
عنوان ژورنال: IEEE Transactions on Wireless Communications
سال: 2009
ISSN: 1536-1276
DOI: 10.1109/ieee.2009.5285198