Amira I. Zaki

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In this paper, a novel adaptive maximum ratio combining (MRC) rake receiver using genetic algorithm (GA) is proposed. The proposed adaptive GA Rake receiver uses GA to adaptively select the delays of Rake receiver fingers depending on the channel impulse response. It adaptively selects the delays that will allow the Rake receiver to capture most of the(More)
A new maximum ratio combining (MRC) Wavelet Rake (WR) receiver is presented in this paper. The WR receiver makes use of the huge bandwidth accompanied with the Ultra-Wideband (UWB) system. The proposed WR receiver uses the continuous wavelet transform (CWT) of the transmitted pulse at different scales (frequency resolutions) as the Rake fingers template(More)
In this paper two novel space-time coding multi-input single-output (STC MISO) schemes, designed especially for Ultra-Wideband (UWB) systems, are introduced. The proposed schemes are referred to as wavelet space-time coding (WSTC) schemes. The WSTC schemes are based on two types of multiplexing, spatial and wavelet domain multiplexing. In WSTC schemes, four(More)
The degree of assurance of providing reliable connectivity to diversely located devices will define the success of internet of things as aimed for future generation of wireless networks. This poses a challenge of making energy available to such devices, regardless of the environment or the circumstances they are into to keep them connected. Solving such a(More)
Variational Bayesian inference is one of the most powerful tools that can be used in estimation of random variations. Traditionally, in digital modulation, random noise is modeled as an additive white Gaussian noise (AWGN). In this paper, a novel coding scheme is introduced by which the effect of AWGN is decreased and the bit error rate (BER) versus the(More)
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