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Theses

Coded modulations for the multiple-antenna and cooperative fading channels

Abstract : This thesis deals with the design of coded modulations for block fading channels with iterative detection and decoding. First, the design of coded modulations for multiple antenna fading channels is discussed. The design consists of choosing a space-time precoding matrix that minimizes the discrete-input outage probability for such systems, while taking into account several parameters that make it suitable for optimized iterative decoding. To conclude this part, the design of turbo codes for multiple-antenna fading systems is proposed based on channel multiplexers. Introducing no additional complexity at the receiver end, these mutliplexers allow to achieve full diversity and high coding gains. Second, coded modulations for cooperative fading channels is proposed, in which relays transmit sequentially to each others. Bounds on the achievable diversity orders are derived, and space-time transmission strategies are proposed to achieve optimal performance. Finally, the design of irregular turbo codes for block-fading channels is presented. Based on the density evolution method, degree profiles that perform very close to the fundamental limits are proposed.
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https://pastel.archives-ouvertes.fr/tel-01823688
Contributor : Ghassan Kraidy <>
Submitted on : Tuesday, June 26, 2018 - 12:45:43 PM
Last modification on : Friday, February 12, 2021 - 3:05:47 AM

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  • HAL Id : tel-01823688, version 1

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Ghassan Kraidy. Coded modulations for the multiple-antenna and cooperative fading channels. Information Theory [cs.IT]. Telecom ParisTech, 2007. English. ⟨tel-01823688⟩

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