Abstract: Optical wireless communication (OWC) is an emerging area where research and development are growing worldwide. The radio-frequency (RF) spectral resource in traditional communication band ...

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Looking for the best free VPNs? Check out our guide to find the most reliable and secure options for protecting your online privacy that won’t break the bank. In a world of targeted ads and intrusive ...

Did we all enjoy the first week of NFL free agency? The deals came fast and furious once the negotiating period began on Monday, with many of the top free agents being linked to new teams within the ...

Dubai is rolling out freebies and discounts - here's what residents need to know Dubai: With spring break under way and Eid Al Fitr just around the corner, a host of local businesses are rolling out ...

Below is a rundown of the notable moves, trades and signings made by each team since the start of the 2026 NFL offseason. This list is not intended to be complete -- it's a spotlight of the most ...