Imai, "MDPSK-OFDM with highly power efficient block codes for frequency-selective faing channels," IEEE Transactions on Vehicular Technology, vol. 49, no. 1, pp. 74-82, 2000.Ochiai H,Imai H.MDPSK-OFDM with highly powerefficient block codes for frequency-selective fading channels.IEEE ...
In this, a new approach for data modulation DPSK-OFDM is introduced, and its performance is evaluated to compare with other standard methods of barcode modulation. OFDM uses orthogonal subcarrier and confine image blur & minimizes the Bit Error Rate. OFDM modulation is performed using DFT. 展开...
本文介绍了OFDM基本原理,并分析了多径信道下的OFDM信号,通过在发送端采用符号内2DPSK调制,在接收端相应地采用符号内2DPSK解调,可使接收数据的误码率降低。 关键词:OFDM多径信道2DPSK调制2DPSK解调 1引言 正交频分复用[1](Orthogonal Frequency Division Multiplexing,OFDM)是一种特殊的多载波调制技术,由于OFDM技术是...
Orthogonal Frequency Division Multiplexing (OFDM) in conjunction with a 4-DPSK modulation format has been proposed for the future digital audio broadcasting system (DAB), that should provide compact disk sound quality in portable, vehicular and fixed receivers. With properly chosen parameters, this sys...
百度试题 结果1 题目请写出下列英文缩写词的中文意思。MPSK:2DPSK:QAM:OFDM 相关知识点: 试题来源: 解析 答案:(1)多进制相移键控;多进制数字相位调制(2)二进制差分相移键控(3)正交振幅调制;正交幅度调制(4)正交频分复用;正交频分复用技术反馈 收藏 ...
That's ... interesting... considering that you have far fewer than 238 lines of code in what you showed here.Can
A closed-form formula for symbol-error rate (SER) of an orthogonal frequency-division multiplexing (OFDM) system with M-ary differential phase-shift keying (MDPSK) in frequency domain over Rayleigh fading channels is obtained. It is found that, by MDPSK in frequency domain, identical SERs can...
A Doppler diversity receiver for OFDM is proposed by Kim B C[1], which requires channel estimation at the receiver, so its structure is complicated, what's more, the receiver needs a large amount of calculation. Different from it, we use the differential phase modulation technology in the ...
DPSK-OFDM modulation scheme is implemented in the proposed work to handle the complexity issue in flexible manner for hassle-free data transmission in mobile devices. Barcode scheme has ability to convert the readable form of information into un-understandable form to provide complexity free transmissio...
We propose the generation, detection, and label swapping methods for DPSK-labelled OFDM transmission. Without increasing the signal bandwidth, we show the attached label has almost no influence on the superior performance of OFDM payload.Wei-Ren Peng...