Towards a Seamless Future Generation Network for High Speed Wireless Communications
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Results show that the wavelet kernel for designing OFDM systems can withstand doubly selective channel fading for mobiles speeds up to 280Km/hr at the expense of the traditional OFDM design kernel, the fast Fourier transform.Abstract:
The MIMO technology towards achieving future generation broadband networks design criteria is presented. Typical next generation scenarios are investigated. The MIMO technology is integrated with the OFDM technology for effective space, time and frequency diversity exploitations for high speed outdoor environment. Two different OFDM design kernels (fast Fourier transform (FFT) and wavelet packet transform (WPT)) are used at the baseband for OFDM system travelling at terrestrial high speed for 800MHz and 2.6GHz operating frequencies. Results show that the wavelet kernel for designing OFDM systems can withstand doubly selective channel fading for mobiles speeds up to 280Km/hr at the expense of the traditional OFDM design kernel, the fast Fourier transform. Keywords—Doppler Effect; Doubly selective fading; frequency- selective fading; OFDM; Wavelet; MIMOread more
Citations
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Root-Based Nonlinear Companding Technique for Reducing PAPR of Precoded OFDM Signals
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Improved Alamouti STBC Multi-Antenna System Using Hadamard Matrices
TL;DR: In this article, the orthogonal space-time block coding (OSTBC) design is extended to include Hadamard matrices, referred to in this work as traditional hadamard OSTBC and Alamouti-Hadamard STBC.
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Novel Fractional Wavelet Transform with Closed-Form Expression
TL;DR: A new wavelet transform (WT) is introduced based on the fractional properties of the traditional Fourier transform which exploits the combined advantages of WT and fractional Fouriers transform (FrFT).
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Peak-to-average power ratio reduction and improved bit error rate performance of orthogonal frequency division multiplexing system using discrete Fourier transform precoder and root-based nonlinear companding
TL;DR: In this paper, a root-based nonlinear companding (RMC) was proposed to reduce the peak-to-average power ratio (PAPR) of OFDM systems.
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DWT-OFDM Diversity for TSV-Model Based 60 GHz WPAN System
C N Deshmukh,V T Ingole +1 more
TL;DR: A DWT-OFDM Diversity to achieve better performance in terms of SNR and bit error rate (BER) for TSV model based channel at 60 GHz is proposed.
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