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Novel Analytical Approach of Non Conventional Mapping Scheme with Discrete Hartley Transform in OFDM System 被引量:2
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作者 Shilpi Gupta Upena Dalal Vishnu Narayan Mishra 《American Journal of Operations Research》 2014年第5期281-292,共12页
The system performance has been analyzed for π/4 DQPSK mapping scheme, which is differential in nature and hence adding additional advantage. Performance evaluation with random data as well as some images has been ta... The system performance has been analyzed for π/4 DQPSK mapping scheme, which is differential in nature and hence adding additional advantage. Performance evaluation with random data as well as some images has been taken. Channel modeling has been performed in multipath fading environment. For elaboration of the concept mathematical modeling has been implemented using computer simulation. In this paper, an attempt is made to know the capabilities of DHT-OFDM with non conventional mapping technique π/4 DQPSK. 展开更多
关键词 dht-ofdm FFT-OFDM RAYLEIGH π/4 DQPSK BER
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OFDM/DMT中一种基于DIT-DHT的高效率FFT/IFFT结构 被引量:1
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作者 柯建东 刘文江 戎蒙恬 《上海交通大学学报》 EI CAS CSCD 北大核心 2007年第5期755-758,共4页
提出了一种基于按时间抽取(DIT)离散哈特莱变换(DHT)的快速傅里叶变换(FFT)结构,运算过程均为实数操作.与复数FFT相比,该结构可以节省1/2的RAM并且需要更少的乘法器和加法器.这种FFT/IFFT结构适用于ADSL/VDSL、DAB/DVB、WLAN及其他OFDM/... 提出了一种基于按时间抽取(DIT)离散哈特莱变换(DHT)的快速傅里叶变换(FFT)结构,运算过程均为实数操作.与复数FFT相比,该结构可以节省1/2的RAM并且需要更少的乘法器和加法器.这种FFT/IFFT结构适用于ADSL/VDSL、DAB/DVB、WLAN及其他OFDM/DMT应用和实数FFT应用中. 展开更多
关键词 正交频分复用/离散多音 快速傅里叶变换 离散哈特莱变换
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