METHOD AND SYSTEM FOR EVALUATING USER QUALITY OF EXPERIENCE IN WIRELESS NETWORK, AND SYSTEM FOR MONITORING EFFECTS OF TRANSCODING OF IMAGE DATA ON USER QUALITY OF EXPERIENCE IN WIRELESS NETWORK

PROBLEM TO BE SOLVED: To evaluate effects of transcoding of image data on a user Quality of Experience (QoE).SOLUTION: Image data packets transmitted through a wireless network are collected by a network monitoring system. Image data sessions are detected from the image data packets. Key parameters for the image sessions within the image data packets are monitored. An effective throughput for each image session is determined based upon the key parameters. A Quality of Experience (QoE) is determined for one or more users associated with the image sessions. A header extension is added to the image data packets by a transcoding system. The header extension includes data associated with original and transcoded image data packets. The network monitoring system monitors the header extension and evaluates the effect of image data transcoding upon the overall QoE for users.