Title :
On Tomlinson-Harashima precoding in 2-user degraded Gaussian broadcast channels
Author :
Huppert, Carolin ; Bossert, Martin
Author_Institution :
Inst. of Telecommun. & Appl. Inf. Theor., Ulm Univ., Ulm
Abstract :
Tomlinson-Harashima precoding (THP) can be used in degraded Gaussian broadcast channels in order to exploit the broadcast gain with low required complexity at the receivers. In this work we derive the achievable rates for this technique with QAM constellations as signaling alphabets. We compare the performance of THP with superposition modulation.
Keywords :
Gaussian channels; broadcast channels; channel coding; computational complexity; precoding; quadrature amplitude modulation; 2-user degraded Gaussian broadcast channel; QAM constellation; Tomlinson-Harashima precoding; broadcast gain; Broadcasting; Constellation diagram; Decoding; Degradation; Information theory; Noise cancellation; Power system modeling; Quadrature amplitude modulation; Silicon carbide; Transmitters;
Conference_Titel :
Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on
Conference_Location :
Auckland
Print_ISBN :
978-1-4244-2068-1
Electronic_ISBN :
978-1-4244-2069-8
DOI :
10.1109/ISITA.2008.4895632
