Comparison With DVB-H
The DVB-SH incorporates a number of enhancements when compared to DVB-H:
- More alternative coding rates are available
- The omission of the 64QAM modulation scheme
- The inclusion of support for 1.7 MHz bandwidth and 1k FFT
- FEC using Turbo coding
- Improved time interleaving
- Support for antenna diversity in terminals
Recently, results from BMCO forum (Alcatel April 2008) shows a radio improvement of at least 5.5 dB on signal requirements between DVB-H and DVB-SH in the UHF frequencies. The improvements to signal requirements translates to better in-building penetration, better in-car coverage and extension of outdoor coverage. DVB-SH chipsets are being developed now by DiBcom and NXP Semiconductors, and are expected to be available in beginning of 2008. Initial specifications show that the chipsets supports both UHF and S-Band and are compatible with DVB-H.
DiBcom has announced a DVB-SH chip with availability in 2008 Q3. Dibcom DVB-SH 2008 Q3. The chip "has dual RF tuners supporting VHF, UHF, L-Band and S-Band frequencies".
Read more about this topic: DVB-SH
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