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Update : 2013.5.23 Thu 14:05
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- Wireless and Networking Research Lab, University of Victoria -
ABSTRACT
As all kinds of “next generation wireless network” technologies have emerged in the past few years, ultra-wideband (UWB) certainly caught everybody’s eye with its high speed wireless connectivity and its potential for transferring full-high definition (HD) quality video over the air.
This paper examines two commercial UWB products, ZeroWire Mini-PCI and ZeroWire HDMI from TZero echnologies through comprehensive evaluation tests in office and residential environments. These products conform to WiMedia’s multi-band orthogonal frequency division multiplexing (MB-OFDM) specification. Detailed throughput versus range measurements and visual testing of TZero’s wireless HDMI solution demonstrate the impressive performance of these UWB modules for high speed HD video distribution.
1. INTRODUCTION
In recent years, the rapidly growing arena of personal communication technology has
enabled a new digital home lifestyle filled with various consumer electronic devices,
such as personal computers, PDAs, HDTV and DV cameras. Meanwhile, an ever
increasing number of households have a broadband connection to outdoor public
telecommunication and broadcasting networks for home entertainment and data.
Instead of having all home digital electronics running as separate appliances, there is a
growing demand for a more effectively integrated home digital environment.
Furthermore, wireless connection is the preferred choice in such a home environment.
Several requirements are critical for the adoption of a wireless technology supporting
an entertainment and computing network [1]:
Throughput: High throughput is needed to support both streaming data and file
transfer.
Quality of Service: Unlike standards such as 802.11 which are intended
specifically as a wireless replacement for wired local area networks, new wireless
standards must support QoS requirements such as jitter, latency and guaranteed
bandwidth.
Flexibility: The capacity to handle different kinds of data transfer.
Real-time features: Supporting real-time and continuous data transmission
for streaming-type data of audio and video entertainment.
Easy operation: Easy to operate and allow hot connection and disconnection by
simple plug-and-play.
Economy: Reasonable cost and small size applied even to handheld sets.
High reliability: Frequent people activity and movement are inevitable in the
home environment. Special attention to the shadowing impact of the human body
should be paid for system reliability and service quality.
In this paper, we evaluate a reference design module based on TZero Technologies’
WiMedia UWB chipset and TZero’s off-the-shelf wireless video product, to see if this
new technology has delivered the promise of transmitting hundreds of megabits per
second while maintaining a satisfactory QoS. In other words, after years of talk, can
UWB deliver on its promise?
The test was organized by Professor Xiaodai Dong and her team at the University of
Victoria. The reference design evaluation kit under test was purchased directly from
TZero Technologies Inc. TZero’s ZeroWire HDMI product was built and supplied by
an offshore manufacturer in China.
Both the module and the HDMI product are FCC, TELEC and ETSI certified. As part of this study, TZero provided support for
operating the evaluation kit. The commercially-available ZeroWire HDMI product
operated out of the box and needed no support.
For details, click http://www.ece.uvic.ca/~xdong/WiMedia_testing_report.pdf
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