Performance Comparison of Hard and Soft-decision Turbo Coded OFDM Systems
No Thumbnail Available
Date
2010
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE Computer Society
Abstract
This paper compares the performance of hard and soft-decision turbo coded Orthogonal Frequency Division Multiplexing systems with Quadrature Phase Shift Keying (QPSK) and 16-Quadrature Amplitude Modulation (16-QAM). The results show that the softdecision method greatly outperforms the hard-decision method. Using simplified algorithm for the soft-output demapper in the 16-QAM constellation, the complexity of the demapper is greatly simplified. ©2010 IEEE.
Description
Keywords
16-QAM, Bit error rate, orthogonal frequency division multiplexing, Turbo codes
Citation
Proceedings - 2010 IEEE International Conference on Wireless Communications, Networking and Information Security, WCNIS 2010, 2010, Vol., , p. 551-555