Space-Division Multiple Access (SDMA) utilizes linear precoding to separate users in the spatial domain and relies on fully treating any residual multi-user interference as noise. Non-Orthogonal Multiple Access (NOMA) uses linearly precoded superposition coding with successive interference cancellation (SIC) to superpose users in the power domain and relies on user grouping and ordering to enfo...

Raman amplification is a solution for broadband wavelength-division multiplexed (WDM) systems that require fine and reconfigurable gain tuning. However, as the fiber nonlinearity ultimately limits performance of fiber-optic communication systems, accurate models nonlinear interference affecting signal propagation in presence multiple pumps are critical system design. In this study, we propose a...

The use of dual pseudo-random noise (DPN) signals for two-way satellite time and frequency transfer (TWSTFT) improves the time transfer precision such that it is approximately one order of magnitude better than that of conventional TWSTFT. The interference between the transmission signals must be considered to further improve the time transfer precision because the DPN signal uses very narrowba...

The goal of principal components analysis (PCA) is to find principal components in accordance with maximum variance of a data matrix. However, it has been shown recently that such variance-based principal components may not adequately represent image quality. As a result, a modified PCA approach based on maximization of SNR was proposed. Called maximum noise fraction (MNF) transformation or noi...

The performance of codes in a frequency-hopped spreadspectrum communication system with partial-band interference is investigated. The performance measure considered is the decoded bit error probability. A simplified interference model and worst-case partial-band Gaussian noise interference model is considered with the interference noise statistically independent of the transmitted signal. We c...