RESEARCH IFFECTIVE OF GOP STRUCT ON QUALITY OF H.265 IN WLAN ENVIROMENT

Abstract

Advances in wireless communications and mobile technology have dramatically increased video services for end user, however, transferring high quality video over wireless is always a challenge. This trend increases the demand for researching and assessing video quality in network environments, especially wireless. The video quality depends on a number of parameters including the GOP (Group of Picture). This paper focuses on the impact of GOP structure on H.265 video quality. The evaluation was carried out based on the transmission simulation of video sequences designed with different GOP structures on WLAN environment in ns2 integrate Evalvid framework. Experiments demonstrate that video quality will improve as the size of the GOP increase.