A Fairness-Based Access Control Scheme to Optimize IPTV Fast Channel Changing

Table 1

Major components of channel changing delay.

Delay component	Typical latency (ms)
IGMP session joining/leaving for multicast delivery	~100
Network latency and jitter	~100
Client stream buffering (network dejitter buffer and video input buffer)	~250
I-frame acquisition	~1000 (GOP duration is 2 seconds)
Video/audio synchronization	~200
Content authorization	~100