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Sparse code multiple access (SCMA) is a novel non-orthogonal multiple access scheme, which exploits a multidimensional constellation based on the non-orthogonal spreading technique. The SCMA multi-user codebook design is the bottleneck of system performance and there is no design guideline from the perspective of capacity. In this paper, a novel SCMA codebook design scheme is proposed to maximize...
Ultra wideband (UWB) vehicular radar has been studied and developed to achieve a safe driving and to promote business in an intelligent transport system. In the paper, we propose a UWB radar pulse design method that makes use of a linear multi-pulse combination of wavelet pulses which satisfy the Federal Communications Commission (FCC) regulation. Simulation results show that the UWB pulse obtained...
A novel pulse design method for ultra wideband (UWB) communication is presented. The Gaussian pulses with the diverse variance factors are randomly selected as basis functions. The corresponding power spectral density (PSD) of linear combination pulse which complies with Federal Communications Commission (FCC) regulation is obtained by adjusting the parameters such as variance and the value of the...
A UWB vehicular radar has been studied and developed to achieve a safe driving and to promote business in an intelligent transport system. In the paper, pulse design methods for ultra-wideband (UWB) vehicular radar are presented. One method is based on prolate spheroidal wave function; the other is the modified method which can obtain the pulse by adjusting the parameters (fL, fH). Simulation results...
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