|
Wideband Modulation
and PowerStream™
Digital Control of Spectrum
A critical building
block for all of Adaptive's products, Wideband Modulation addresses the specific
signal attenuation challenges of the powerline. A wideband transmission ensures
that some portion of the transmitted spectrum will be received, albeit with significant
distortion due to the multiple peaks and valleys of the powerline transfer function.
To correct for this distortion Adaptive
Equalization is required. PowerStream™ provides a further enhancement
to wideband modulation providing precise digital notching for ham radio frequencies
and other communications.
Description
- Wideband "spread
spectrum-like”
- Single-carrier
- PowerStream: 5
- 35 MHz with precise digital notching
- AN1000: 140 -
400 kHz
- AN 192: 140 -
400 kHz
- AN48: 9 - 95 kHz
- Each node is an
independent transceiver allowing for delivery of communications with virtually
no latency.
Benefits of
Wideband Modulation
- True multicast
and broadcast for multimedia applications requiring low
latency.
- Low spectral density
delivers a low peak-to-average power ratio making it possible to easily comply
with power emissions regulations such as FCC Part 15.
- Power emissions
"headroom" provides for future increases in throughput (projected at
50 Mbps and even higher) and greater distances for achieving connectivity.
- "Frequency
Friendly”
- will coexist with
phoneline, wireless and other wired technologies because of wideband approach
White
Paper: THE POWERLINE AS THE HIGH-SPEED BACKBONE OF A HOME NETWORK (pdf)
PowerStream™
Technology Overview (pdf)
|