David Ortiz· Save the Clock Tower!!
Of course, the link in your post from years ago shows that the speed is 400Mbps, not 175Mbps.Realistically, we must not confuse what DIRECTV chose to do with what MoCA might be able to do. DECA I is capable of around 100Mbps while DECA II is good for 175Mbps (both half-duplex). Radio bitrates aren't the same as effective data transmission rates (i.e. 36MHz Ka isn't 50% faster than 24MHz Ku).
This is important in a half-duplex system as there can be exactly one conversation going on at any one time and every device must share one channel through a negotiation process.
The MoCA Alliance has formally announced the MoCA 2.0 standard today:
News Releases :: SMC Networks Joins MoCA
Key elements are significantly higher data rates, lower error rates and power-saving sleep modes.
While this information originated from CES 2011....I wanted to share this specifically to the DirecTV forum readers. It pertains to the latest information provided from Entropic (the key DirecTV partner behind SWiM and DECA).
MoCA 2.0 (Multimedia Over Coax Alliance) will be the latest high speed home network hardware & software framework for DirecTV HD video/audio distribution.
Today, DirecTV customers with HD service and Whole Home DVR Service, also known as Multi-Room Viewing (MRV), may be familiar with SWiM and DECA. That foundation help deliver high speed HD video and corresponding audio to all connected HD devices, as well as Internet connectivity if integrated with broadband.
MoCA 2.0 is the next generation of this platform.
Key features for the techies:
- *Connects all existing HD DirecTV devices supported by MoCA 1 - it's backward compatible.
*Highest possible video streaming speed support
*Full broadband speed access can be distributed through all connected devices
*400Mbps of application (MAC layer) throughput over 16 modes
*500 Mbps two-node "Turbo mode" is supported
*Packet error rates better than 1e-6 and low latency of 3.5ms
*Network-wide power management
*Expanded range of operating frequencies supported 500Mhz - 1650 Mhz
In the simplest terms, MoCA 2.0 supports virtually double the performance level of MoCA 1.x.
Entropic indicated the base technology was complete, with testing and rollout coming later in 2011.
More information can be seen here at the Entropic website:
National Technical Systems Awarded 2-Year Extension of Exclusive MoCA Certification Agreement
One last side note...both Dish and Comcast also plan to use some form of this same platform in the future, indigenous to their own configurations/networking infrastructure.