کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4953855 | 1443120 | 2017 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Realization of constant envelope OFDM using quantization and CPM technique
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
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چکیده انگلیسی
Orthogonal frequency division multiplexing (OFDM) is used in many wireless communication. The important drawback of this modulation is its high peak-to-average power ratio (PAPR). In this paper, a new modulation scheme of constant-envelope OFDM (CE-OFDM) is proposed. This scheme uses a combination of OFDM, quantizer and continuous phase modulation (CPM) to achieves 0Â dB PAPR. The statistical signatures of signals, based on system parameters such as the length of discrete Fourier transform (DFT) and the number of quantization levels are presented. There are two sources of noise in proposed CE-OFDM scheme: quantization noise and channel noise. The theoretical analysis of these noises is presented. Moreover, the bit error rate (BER) performance of CE-OFDM over additive white Gaussian noise (AWGN) is analyzed. The simulation results show that the proposed system has unity PAPR and the symbol error rate (SER) performance of CE-OFDM is the same as the theoretical analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 80, October 2017, Pages 172-178
Journal: AEU - International Journal of Electronics and Communications - Volume 80, October 2017, Pages 172-178
نویسندگان
Sajad Rezaie, Abbas Mohammadi, Navvab Afrashteh, Vahideh Sanjaroonpouri,