Title :
A Study of Adaptive Equalizer for APSK in the Satellite Broadcasting System
Author :
Suzuki, Yoichi ; Hashimoto, Akinori ; Kojima, Masaaki ; Sujikai, Hisashi ; Tanaka, Shoji ; Kimura, Takeshi ; Shogen, Kazuyoshi
Author_Institution :
NHK Sci. & Technol. Res. Labs., Tokyo, Japan
Abstract :
By making use of LDPC codes and a smaller roll-off factor, the advanced satellite broadcasting system proposed by us has a 30% higher transmission channel capacity in comparison with the current ISDB-S system. In addition, the transmission channel capacity can be more increased by using multi-level amplitude phase shift keying (M-APSK) modulation. However, the APSK signal is more sensitive to the non-linear distortion. Hence, a careful consideration for APSK should be paid for transmission over a satellite channel. In this paper, we report on adaptive equalizers that are designed for APSK transmission over a satellite channel. We also report on computer simulation results of equalized 16/32APSK performances under a satellite channel model and discuss the equalization effect for the advanced ISDB-S system transmission format.
Keywords :
adaptive equalisers; parity check codes; phase shift keying; satellite communication; wireless channels; APSK; LDPC codes; adaptive equalizer; advanced satellite broadcasting system; equalization effect; multilevel amplitude phase shift keying modulation; nonlinear distortion; roll-off factor; satellite channel; transmission channel capacity; Adaptive equalizers; Channel capacity; Communication standards; Data communication; Digital multimedia broadcasting; Multiplexing; Parity check codes; Phase modulation; Phase shift keying; Satellite broadcasting;
Conference_Titel :
Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-4148-8
DOI :
10.1109/GLOCOM.2009.5425873
