Wireless Network Systems

A wireless network operates through wireless data connections between network nodes, eliminating the need for physical cables.

This method is cost-effective for homes, telecom networks, and businesses, relying on radio communication at the OSI model's physical layer.

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Examples include cell phone networks, WLANs, wireless sensor networks, satellite communication, and terrestrial microwave networks.

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Wireless networks are classified into three types:

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1. Wireless Wide Area Networks (WWAN): Utilise mobile phone signals for connectivity, even when traditional network access is unavailable.

2. Wireless Local Area Networks (WLAN): Employ radio waves and access points to connect wireless users to wired networks, spanning from single rooms to entire campuses.

3. Wireless Personal Area Network (WPAN): Use Bluetooth technology to connect compatible devices within short ranges, typically around 30 feet, ideal for interconnecting devices near a central location.