Title :
Required transmit power for broadcast systems with Tomlinson-Harashima-precoding
Author :
Huppert, Carolin
Author_Institution :
Inst. of Telecommun. & Appl. Inf. Theor., Ulm Univ., Ulm
Abstract :
Tomlinson-Harashima-precoding can be used as dirty-paper-coding method for transmissions over a broadcast channel. From single user systems it is known that this symbol wise precoding method suffers, amongst others, from a power loss. However, for broadcast scenarios it is also possible to observe a power gain. This paper investigates the required transmit power for Tomlinson-Harashima-precoding in broadcast systems. Additionally, upper and lower bounds on the required power are derived.
Keywords :
broadcast channels; precoding; Tomlinson-Harashima-precoding; broadcast systems; dirty-paper-coding; transmit power; Base stations; Broadcasting; Degradation; Information theory; Interference channels; Power distribution; Power system modeling; Propagation losses; Quadrature amplitude modulation; Transmitters;
Conference_Titel :
Information Theory Workshop, 2008. ITW '08. IEEE
Conference_Location :
Porto
Print_ISBN :
978-1-4244-2269-2
Electronic_ISBN :
978-1-4244-2271-5
DOI :
10.1109/ITW.2008.4578652
