||HOMEPLUG AV2 OVERVIEW
The convergence of voice, video and data within a variety of multi-function devices and new applications, along with the evolution of high-definition and 3D video, is driving the need for increased high throughput connectivity throughout the home while assuring a high level of reliability and sustained performance.
Home networks are now expected to support applications such as whole-home audio systems, interactive gaming, Smart Grid utilities management and security monitoring. The rise of HDTV, IPTV and multi-room HD DVR services are significantly raising the throughput requirements for home networking.
HOME CONNECTIVITY IS EXPANDING
In addition, the proliferation of connected devices and methods for accessing and consuming multimedia content within the home is requiring network technologies to both deliver more throughput and provide more adaptability to meet ad hoc configuration needs. For example, streaming services (Netflix, Hulu, Vudu, Amazon Prime, Pandora etc.) and diverse access devices such as iPads and Xbox, are giving users more options for using digital content within the home and they do not want to be limited as to where and how they use it.
Despite the ongoing drive for convergence of video, voice and data, home networks often leave disconnected islands in the home (dead spots) where digital content is not available without pulling new cabling or hassling with the inherent coverage limitations of wireless networking. In contrast, standards-based powerline for fixed devices and a combination of powerline and Wi-Fi for mobile devices can deliver a truly comprehensive whole-home solution that bridges all of these digital islands into a comprehensive network of interconnected content for access and viewing anywhere, anytime, and on any screen.
An example, HomePlug AV Certified products enable users to easily access streaming services from anywhere there is a power outlet. It also flexibly delivers high speed throughput to all HDTVs, Blu-ray players, DVRs, PCs and game consoles throughout the home. Combined with a hybrid (Wi-Fi + HomePlug) router or range extender, both stationary and mobile devices are readily supported. Using simple and secure setup with push button authentication, HomePlug can easily extend connectivity to that additional TV or game console in another room without running any new wires.
The introduction of HomePlug AV2 is the next major step forward in performance to support higher throughput for whole-home HD / 3D video, interactive gaming and other demanding multimedia applications; while simultaneously providing interoperability with the growing ecosystem of other applications such as Smart Grid and security functions that HomePlug Alliance addresses via its HomePlug Green PHY standard.
HOMEPLUG AV2 TECHNOLOGY
The widely-adopted HomePlug AV standard has now been enhanced to both extend the reach and throughput of the HomePlug AV2 solution. As shown in Figure 2, both HomePlug Green PHY and HomePlug AV2 are fully interoperable with HomePlug AV, while each provides a distinct set of capabilities for addressing different market requirements.
Introduced in 2010, HomePlug Green PHY leveraged the HomePlug AV standard to deliver an energy-efficient and cost-effective networking option with optimized throughput for implementing a wide range of applications such as Smart Grid/Energy management, device automation/control, security monitoring, and other latency-tolerant machine-to-machine communications functions. HomePlug GP provides ample throughput for current and future Smart Grid/Energy applications, while offering reduced complexity and much lower power consumption.
Now, with the introduction of HomePlug AV2, the HomePlug AV architecture also has been extended upward to provide two to five times the performance of HomePlug AV. This enables HomePlug AV2 to provide both the throughput and coverage needed to support the escalating requirements of next-generation multimedia applications.
HOMEPLUG AV2 BACKWARD COMPATABILITY IS MAINTAINED
HomePlug AV2 shares the same underlying architecture and communications hierarchy with HomePlug AV; thereby providing a solid foundation for achieving interoperability between all certified HomePlug AV, HomePlug AV2 and HomePlug Green PHY products
DIFFERENT TECHNOLOGY FEATURES OF HOMEPLUG AV VS. HOMEPLUG AV2
In addition to the compatibility between HomePlug AV and HomePlug AV2, there are a number of characteristics that differentiate HomePlug AV2 and provide for its higher bandwidth and coverage capabilities. These enhancements are shown in Figure 4 and are described in the following sections.