04.24.2007 08:00 AM
New bandwidth savings on the horizon

For IPTV service providers to compete successfully with cable TV and direct-to-home satellite operators, they need to deliver both SD and HD channels as well as traditional data and telephony services.

To do so, they must grapple with the bandwidth limitations of their existing infrastructure even as they evaluate other options offering greater bandwidth, such as fiber to the home or premises, in the future.

LSI Logic this month introduced the Domino[X] Pro media processor family that promises to relieve some of these bandwidth concerns.

LSI Logic senior director of marketing and business development for advanced video products Bob Saffari laid out the bandwidth allocation of a typical IPTV network with 24Mb/s today, and how the new processor family will impact the future.

Today's Requirements

Services

Target Operating Point

Allocated BW

Two-channel HD (up to 1920 x 1080i)

8.5Mb/s

17Mb/s

Two-channel SD (up to 720 x 480i)

2.5Mb/s

5Mb/s

Internet/broadband

2Mb/s

2Mb/s

Total

24Mb/s

Future Needs

Services

Target Operating Point

Allocated BW

Two-channel HD (up to 1920 x 1080i)

6Mb/s

12Mb/s

Two-channel SD (up to 720 x 480i)

1Mb/s

2Mb/s

Internet/broadband

2Mb/s

2Mb/s

Subtotal

16Mb/s

Bandwidth available for new optional services

8 Mb/s

1) Premium content

One more channel of full HD (1920 x 1080p60)

8Mb/s

8Mb/s

0r

2) More SD and HD content

One more channel HD (1080i)

6Mb/s

6Mb/s

Two more channel SD

1Mb/s

2Mb/s

0r

3) More HD and More BW for Internet

One more channel HD (1080i)

6Mb/s

6Mb/s

More BW for Internet (Up/downstream)

2Mb/s

2Mb/s

Total

24Mb/s

(Source: Bob Saffari, LSI Logic senior director of marketing and business development for advanced video products.)

To read a one-on-one interview with Saffari about the Domino[X] Pro media processor family, see "New LSI Logic media processors to fuel IPTV development, says Saffari."

For more information, visit www.lsilogic.com.



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