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Decoding Algorithms for Some Non-Coherent Space-Time Codes

Abstract : This thesis is composed of two parts, the most important one deals with space-time block coding and decoding for systems in which no channel knowledge is available at the receiver and at the transmitter. We focus on a particular family of non-coherent space-time block codes, obtained by a non-linear map called the exponential map. This part is composed of four chapters. In Chapter 2, we introduce the channel model. Basic mathematical tools, results on non-coherent space-time codes and previous propositions are also recalled. In Chapter 3, an in-depth investigation of non-coherent space-time codes obtained via the exponential map is carried out. We explain the geometrical interpretation of this coding procedure and we solve some open problems on code design. In Chapter 4, we propose a new simplified decoder for the case of one transmit antenna and many receive antennas. Discussion on the expected complexity and parameters of the decoder are detailed, as well as simulations and comparisons with other propositions. In Chapter 5, we propose two simplified decoders in the general multiple antenna case. Discussion about the expected complexity and about decoder parameters is provided. Simulations and comparisons conclude this chapter. The second part of the thesis is composed of Chapter 6, which deals with CPM signal decompositions in PAM pulses. CPM is a non-linear modulation, while signal decomposition as a linear combination of waveforms can simplify the code and receiver design both for coherent and non-coherent systems. A final conclusion is reported. A summary of the thesis in french is provided in Chapter 1.
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Submitted on : Monday, July 11, 2005 - 8:00:00 AM
Last modification on : Friday, July 31, 2020 - 10:44:03 AM
Long-term archiving on: : Thursday, September 30, 2010 - 7:01:12 PM


  • HAL Id : pastel-00001326, version 1



Antonio Maria Cipriano. Decoding Algorithms for Some Non-Coherent Space-Time Codes. domain_other. Télécom ParisTech, 2005. English. ⟨pastel-00001326⟩



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