Your Cable TV Wiring Will Handle 400Mbps Soon

Illustration for article titled Your Cable TV Wiring Will Handle 400Mbps Soon

The Multimedia over Coax Alliance (MoCA, if you're into brevity) standard is defining the networked home by enabling multi-room DVRs and content sharing. And soon, the already impressive MoCA transfer speeds are going to double to at least 400Mbps.

What MoCA does is let devices communicate from room to room over coax at advertised speeds. And because content is getting richer—think 3DTV in particular—MoCA and cable providers have to keep up with the demand. That's where MoCA 2.0, a specification that can transfer data at 400Mbps (or the 800MBps Enhanced version), comes in. It may seem like a lot now, but as Entropic co-founder and MoCA evangelist Dr. Anton Monk pointed out to me, once you start pushing applications video streams and 3DTV through you might see up to 300Mbps.

It'll be a while before we actually see the new spec rolling out into homes, but it should definitely be in place before you'll need to transfer 400Mbps around your networked home. Still, good to know that they're ready for it, and you won't even have to lift a finger.

MoCA's ratification of version 2.0 provides operators and OEMs with a technology roadmap of continued high performance and reliability for multi-room DVR, personal content sharing, OTT content sharing and IPTV applications. MoCA 2.0 offers two new performance modes with net or actual throughputs of 400 and 800 Mbps, respectively, each with a corresponding turbo mode. Likewise, two new lower power modes increase energy savings. Expanded operating frequency better accommodates all pay TV service providers. MoCA 2.0 is both evolutionary and revolutionary. Like MoCA 1.1, MoCA 2.0 is backward compatible with MoCA 1.0 to ensure preservation of operator investment in current equipment.

* Two new performance modes with industry leading MAC and PHY rates. "Turbo" mode for each.
* Two new low power modes – sleep and standby
* Expanded operating frequency
* Packet error rate (PER) improvements.
* Backward interoperability with 1.0 and 1.1 assured.
* MoCA 1.0/1.1 meet operator requirements today. MoCA 2.0 serves operator requirements of tomorrow.


Baseline Mode

* 400+ Mbps MAC throughput
* 700 Mbps PHY Rate
* Single 100 MHz Channel

Enhanced Mode

* 800+ Mbps MAC throughput
* 1.4 Gbps PHY Rate
* Dual bonded 100 MHz Channels ("Channel Bonding")

"Turbo" mode for a point-to-point configuration that allows

* 500+ Mbps MAC throughput between two connected devices when operating in Baseline mode
* 1+ Gbps MAC throughput when operating in Enhanced mode.

Energy Savings

Two new power saving modes

* Standby (reduced power)
o With Wake on MoCA (WoM) for quick response
o "Wake on MoCATM" produces similar results to "Wake on LAN (WoL)" but specialized for MoCA as a coordinated shared network
* Sleep (minimum power)
o Reduced power for one node

Additional network-level power saving mode

* Network standby mode is defined as all devices in the network are in standby, including the NC, and can wake up synchronously and reform the network
* Reduced power for all nodes

Expanded Operating Frequency

500 MHz through 1650 MHz (center frequencies)

This spectrum expansion allows multiple MoCA networks simultaneously coexistent with provider services

Reliability Improvements

Improved packet error rate (PER)

* Programmable on a per flow basis
* One packet error in 100 million for improved video delivery
* 3.5 ms latency for all received packets

3.5 ms latency (on average) over all received packets.

Improved robustness by re-transmission

Backward Interoperability Assured

No nonsense backward compatibility!

MoCA 2.0 nodes interoperate with 1.0 or 1.1 nodes on the same network.

MoCA 2.0 capable nodes communicate in MoCA 2.0 mode when talking to MoCA 2.0 devices even when legacy devices are present in the network.

* Highest and truest performance in industry
* Energy efficiency improvements
* Expanded operating frequency
* Backward interoperability
* The only home entertainment networking standard that works in all three pay TV segments-cable, satellite and IPTV.
* MoCA 1.0/1.1 meet operator requirements today. MoCA 2.0 serves operator requirements of tomorrow.

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Brian, there is a major difference between MBps and Mbps. The former is 8 times faster than the latter. This is important.