Ключевые слова: abstract, access, asia, background, building, business, car, city, cityscape, cloud, colorful, communication, concept, connect, connection, curve, digital, evening, grid, hanoi, horizon, icon, internet, iot, landmark, laptop, line, mesh, network, night, point, port, sensing, sensor, sky, skyline, skyscraper, smart, technology, tower, town, vehicle, vietnam, visual, web, wifi, wired, wireless,