The Study on OFDM System with Interleaving

• Main Authors: Lin,Po-Feng, 林伯峯
• Other Authors: Chen,Tung-Chou
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/a8r839

碩士 === 國立彰化師範大學 === 電信工程研究所 === 105 === The wireless communication system uses radio waves to send a message. The receiver will receive the signals from all of the different paths in multipath distortion. The wireless channel brings about the frequency selective fading to affect the power unstable in frequency domain of signal and occurs burst error. Interleaving is effective to against multipath distortion. But we need to pay the hardware cost and the time latency with interleaving. In this paper, we study to solve this problem and propose a method to use the first permutation sequence order in Inverse Fast Fourier Transform. Then we replace interleaving and obtain a modified Orthogonal Frequency Division Multiplexer System. Use the proposed architecture to save the hardware complexity and the time latency, and against the frequency selective fading channel effectively to increase the decoding performance for the system.