IDWT-DWT在OFDM系统中的应用

Application of IDWT-DWT in the OFDM system

首先介绍了基于IFFT FFT的OFDM技术,并指出了该技术存在的缺陷,然后利用仿真实验和对实验结果的分析,提出了基于IDWT DWT的OFDM系统模型.通过相关信息的分析比较,最后得出基于IDWT DWT的OFDM系统具有潜在的抗信道衰落影响的能力以及更高的频谱利用率.

The present paper extends the investigation to the performance of OFDM based on IFFTFFT modulation and points out its disadvantages, then advances the model of the OFDM system based on IDWTDWT modulation through the analyses of the simulation. Our results depict that the OFDM system based on IDWTDWT modulation has the ability to mitigate the effect of interference in fading channels and to enhance the utilization coefficient of the frequency spectrum.