(Enhanced Data for Global Evolution)

EDGE (Enhanced Data rates for GSM Evolution) is a mobile data transmission technology that enhances the speed and efficiency of GSM networks. It is often considered a 2.75G (between 2G and 3G) technology and is a backward-compatible evolution of GSM.

Key Features of EDGE:

• Speed: Offers theoretical maximum data rates up to 384 kbps, although typical real-world speeds are around 100–200 kbps.
• Modulation: Uses 8PSK (8 Phase Shift Keying) modulation instead of GMSK used in standard GSM, allowing more data to be transmitted per radio signal.
• Deployment: Widely used in areas where 3G/4G is not available, especially for basic internet services like email, web browsing, or messaging.

Use Cases:

• Slow internet browsing or social media in low-coverage areas.
• Backup mobile data option when 3G/4G signals are weak or unavailable.
• Still used in some rural or developing regions where newer mobile infrastructure is limited.