An app demodulator for iterative decoding of turbo coded differential space-time modulation with unitary group codes

A modified technique for joint iterative decoding of serial concatenation of turbo code and unitary space-time group code is proposed and evaluated under temporally correlated fading channels. This approach further takes advantage of the system by exploiting the unitary space-time group code which p...

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Hauptverfasser:	Sangwongngam, P., Vanichchanunt, P., Segkhoonthod, S., Nakpeerayuth, S., Wuttisittikulkij, L.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Applied sciences Coding, codes Demodulation Detectors Error correction codes Exact sciences and technology Fading Information, signal and communications theory Iterative decoding Modulation coding Modulation, demodulation Receiving antennas Signal and communications theory Space technology Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Turbo codes Wireless communication
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Beschreibung
Zusammenfassung:	A modified technique for joint iterative decoding of serial concatenation of turbo code and unitary space-time group code is proposed and evaluated under temporally correlated fading channels. This approach further takes advantage of the system by exploiting the unitary space-time group code which possesses trellis structure of differential modulation. The extrinsic information of modulation symbols is calculated from this trellis structure by using a detector called an a posteriori probability (APP) demodulator. The simulation results show that our modified method is superior to the conventional one at the expense of more complexity.
DOI:	10.1109/TENCON.2004.1414672