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www.southgatearc.org
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Data-Over-Mains - Powerline home net camps mount urgent bid for unityA standards battle will take place at this weeks meeting of groups with a vested interest in promotimg the polluting data-over-mains technology. Data-over-mains systems generate high levels of RF pollution and can render the precious HF spectrum, a valuable natural resource, totally unusable. A more efficient and less damaging way to transfer data, video and music around the home is by Wireless technologies such as Bluetooth, Zigbee, Wifi, Ultra-Wide-Band (6GHz UWB) and WirelessHD which cause absolutely no pollution to the HF spectrum. In an article for this weeks EE Times Rick Merritt describes the forthcoming meeting. Santa Clara Calif. -- Opposing camps in powerline home networking will face off at an IEEE meeting in Boston this week over the path toward a unified standard. It's unclear whether anything will come of the eleventh-hour calls for compromise in advance of the Boston event, but separately players are stretching their technology to compete with everything from 802.11 to ZigBee. Companies as diverse as Cisco, Echostar, Philips and Intel expressed
support for powerline at the annual HomePlug Alliance convention here
last week. But they also called on all sides to embrace standards and
lower costs in a highly Indeed, the Multimedia over Coax Alliance (MoCA), a rising star among cable TV service providers, will turn up the heat this week, when it announces a 1.1 version of its spec that delivers 175 Mbits/second at the media access control level and supports parameterized quality-of-service. By contrast, the two leading powerline technologies claim data rates of 95 and 65 Mbits/s and lack the parameterized QoS some service providers require. On a brighter note, the HomePlug group has ratified a spec for a 700-kbit/s control network that will challenge ZigBee for networking of lights, alarms and white goods. The competing Universal Powerline Association (UPA) is working on a similar spec, which could be announced before mid-2008. Meanwhile, executives from HomePlug, the UPA and the Consumer Electronics
Powerline Communication Alli- ance (CEPCA), a group of mainly Japanese
conglomerates, were in discussions last week on whether they could hammer
out a The IEEE 1901 group is considering two competing proposals. One brings together separate technologies from HomePlug and Pana- sonic; the other is from the UPA and has some backing from CEPCA. HomePlug backers say they could have enough members to force and win a vote on their proposal in Boston. The effort defines a protocol that ensures separate HomePlug and Panasonic networks will not interfere and will be able to share data, as long as vendors support both entities' separate physical-layer technologies. Full article - Data over mains in Personal Computer World magazine Data Over Mains chip uses 3 - 30 MHz NATO releases major report on effects of BPL WirelessHD - 60 GHz could be used for home video distribution
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