Performance Comparison of Hard and Soft-decision Turbo Coded OFDM Systems

摘要：

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.

关键词： Bit error rate orthogonal frequency division multiplexing Turbo codes 16-QAM

作者: Savitha H. M. Muralidhar Kulkarni

作者单位: Department of Electronics and Communication Engg. St. Joseph Engineering College, Mangalore Karnatak Department of Electronics and Communication Engg. National Institute of Technology Karnataka, Surath

会议类型: 国际会议

会议名称: 2010 IEEE International Conference Conferenhce on Wireless Communications,Networking and Information Security(2010 IEEE 无线通信、网络技术与信息安全国际会议 WCNIS)

会议地点: 北京

会议语种:英文

页码: 1-5

在线出版日期: 2010-06-25（万方平台首次上网日期，不代表论文的发表时间）