provide high-speed internet connectivity to users on the move, matching the speeds of traditional fixed-line connections. This technology has contributed to the development of the IEEE 802.16e standard. However, WiBro operates in a distinct frequency band, specifically the 2.3 – 2.4 GHz range, and is not entirely compatible with the IEEE 802.16 standard.

Key characteristics of WiBro include:

• Peak Data Rates: WiBro offers a peak data rate of 18.4 Mbps for downlink (from the network to the user) and 6.1 Mbps for uplink (from the user to the network).
• Cell Size: The coverage area of a single WiBro cell is approximately 1 kilometer.
• User Data Rates: Data rates available to individual users range from 512/128 Kbps (downlink/uplink) to as high as 3/1 Mbps.
• User Mobility: WiBro is optimized for users moving at speeds up to 60 km/h.
• Bandwidth: The system utilizes a bandwidth of 9 MHz.
• Duplexing Method: Time Division Duplexing (TDD) is employed, allowing both transmission and receiving of signals in the same frequency band but at different times.
• Multiple Access Technique: Orthogonal Frequency-Division Multiple Access (OFDMA) is used, which is efficient in handling high data rates and providing connectivity to multiple users simultaneously.

WiBro has played a significant role in advancing mobile broadband technologies, especially in offering high-speed internet access to users in transit. It demonstrates the possibilities of wireless communication beyond conventional cellular and Wi-Fi technologies, particularly in densely populated urban areas and for users needing connectivity while on the move.