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What technologies are used in telecommunication?
ultime notizie sull'azienda What technologies are used in telecommunication?
1. Core Transmission & Media Technologies (The "Physical Layer")

These are the physical pathways that carry signals.

Wired:
  • Fiber Optic Cables: The backbone of modern long-distance and high-capacity networks. Uses pulses of light. Key tech: DWDM (Dense Wavelength Division Multiplexing) packs hundreds of data streams onto a single fiber.
  • Copper Cables: The legacy foundation. Includes twisted-pair (for DSL internet and Ethernet) and coaxial cable (for cable TV/internet).
Wireless:
  • Radio Frequency (RF) Spectrum: The invisible highway for wireless communication. Different frequency bands (low-band for coverage, mid-band for balance, high-band/mmWave for extreme capacity) are allocated for different services.
  • Satellite Communications: Provides global coverage, especially for remote areas, maritime, and aviation. Advancements in Low Earth Orbit (LEO) constellations (like Starlink) offer lower latency.
  • Microwave Transmission: Uses focused radio beams for point-to-point links over long distances (e.g., between cell towers).
2. Network Access Technologies (The "Last Mile")

How end-users connect to the core network.

Fixed/Broadband Access:
  • FTTx (Fiber to the x): FTTH (Fiber to the Home) is the gold standard for speed. Uses PON (Passive Optical Network) technology.
  • Cable (DOCSIS): Delivers data over coaxial cable TV infrastructure.
  • DSL (Digital Subscriber Line): Uses existing telephone copper lines.
  • Fixed Wireless Access (FWA): Uses cellular (like 5G) or other radio links to provide home broadband.
Mobile Wireless Access (Cellular Generations):
  • 5G: Current generation. Features network slicing (virtual networks), massive MIMO (multiple antennas), and uses millimeter wave (mmWave) for ultra-high speeds.
  • 4G LTE: The previous standard, providing high-speed mobile broadband.
  • 3G & 2G: Legacy networks for basic data and voice, still in use for fallback and IoT.
3. Core Networking & Routing Technologies (The "Brain and Highways")

How data is moved, managed, and directed across the network.

Switching & Routing:
  • Packet Switching: The fundamental method of the internet, breaking data into packets.
  • IP (Internet Protocol): The universal addressing system (IP addresses).
  • MPLS (Multiprotocol Label Switching): Creates fast, efficient "labeled" paths within core networks.
Modern Network Architecture:
  • SDN (Software-Defined Networking): Separates the network's control plane (the brain) from the data plane (the muscle), allowing centralized, programmable control.
  • NFV (Network Functions Virtualization): Replaces dedicated hardware (like routers, firewalls) with software running on standard servers, making networks more agile.
  • Cloud Computing & MEC (Multi-access Edge Computing): Moves computing and storage to the cloud and, crucially, to the edge of the network (near cell towers), reducing latency for applications like autonomous vehicles and AR/VR.
4. Signal Processing & Protocols (The "Languages and Rules")

Modulation Techniques: Encode digital data onto analog carrier signals (e.g., QAM, OFDM used in 4G/5G and Wi-Fi).

Protocols:

The standardized rules for communication.

  • TCP/IP: The foundational suite of the internet.
  • SIP (Session Initiation Protocol): For setting up voice/video calls over IP (VoIP).
  • HTTP/2, HTTP/3, QUIC: For web traffic.
  • Diameter & SS7: For signaling in mobile networks (authentication, billing, mobility).
5. Enabling & Support Technologies
  • Internet of Things (IoT) Connectivity: Specialized protocols like NB-IoT, LTE-M, LoRaWAN, and Sigfox for connecting low-power, massive numbers of sensors and devices.
  • Artificial Intelligence & Machine Learning: Used for network optimization, predictive maintenance, fraud detection, intelligent customer service, and managing network traffic.
  • Cybersecurity: Encryption (TLS, AES), firewalls, IDS/IPS, and zero-trust models are critical to protect network integrity and user data.
  • Quantum Communication (Emerging): Quantum Key Distribution (QKD) uses quantum mechanics to create theoretically unhackable encryption keys.
Tempo del pub : 2025-12-02 09:57:38 >> lista di notizie
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