Modern 4G network architecture, futuristic cityscape, skyscrapers, neon lights, intricate circuit boards, sleek metallic surfaces, wires, antennas, routers, servers, high-tech devices, LED screens displaying data streams, virtual interfaces, holographic projections, complex system diagrams, abstract geometric shapes, minimalist composition, vibrant neon colors, sharp angles, dynamic lighting, 3D visualization, futuristic ambiance.