Title :
Simplified Soft Demapping Algorithm for Gray-APSK
Author :
Changyong Pan ; Jiachen Huang ; Kewu Peng ; Liwen Fan
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
Amplitude phase shift keying (APSK) constellation with Gray mapping was proposed recently. In this paper, a simplified soft demapping algorithm for Gray-APSK is developed. Simulation results show that the proposed algorithm decreases the soft demapping complexity considerably with little loss of SNR.
Keywords :
phase shift keying; Gray mapping; amplitude phase shift keying constellation; gray-APSK; simplified soft demapping algorithm; soft demapping complexity; Bit error rate; Complexity theory; Digital video broadcasting; Parity check codes; Quadrature amplitude modulation; Signal to noise ratio; Simulation;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-684-2
DOI :
10.1109/WiCOM.2012.6478674
