资料介绍
DVB-H T-DMB ComparisonSystem Comparison T-DMB vs. DVB-H
DVB Technical Module 2006
Copyright Digital Video Broadcasting Project DVB
Ref: TM3490_DVB-H281r1
Outline
T-DMB and DVB-H Physical Layer Options
True differences between T-DMB and DVB-H
DMB claims vs. facts
True technical maturity
Network coverage and planning issues
Network cost comparison
slide 2
DVB-H and T-DMB Main Physical Layer Options
Parameter
Channel Bandwidths (MHz) FFT Sizes Guard Intervals (us)
T-DMB
1.712 2k, 1k, 0.5k, 0.25k 246, 123, 62, 31
DVB-H
5, 6, 7, 8 8k, 4k, 2k 224, 112, 56, 28, 14, 7
Inner Modulations Error Protection Convolutional code rates Time interleaving MPE-FEC code rate Time Slicing Protocol stack Theoretical data rate range (Mbit / s) Practical data rate
slide 3
Differential-QPSK Convolutional code + RS FEC , 3/8