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How long does it take for a spectrum modem to connect to the Internet? 

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It is quicker than the conventional modem for accessing information over a large network.
As a new social form,"Internet +"enjoys comprehensive access characteristic,and its development would lead to a further explosive growth of equipments relying on frequency,Ever-increasing spectrum requirements of numerous equipments result in the increasing demand for the limited spectrum resource,thus high-efficient spectrum service becomes the key to ease the spectrum issue.
Book ChapterDOI
01 Jan 2019
2 Citations
The surprising resiliency of the modem—its long life as an interim technology—challenges the digital technological progress narrative.
This paper proposes a novel spread spectrum (SS) modem for random access satellite communication systems that employs digital matched filters.
Under this restriction the usual narrowband FM modem was effective only within a distance less than 11 m. The SS modem proved to be reliable for distances as far as 110 m.<>
Since the linear ZF canceler decouples transmission on each line, the spectrum on each modem can be optimized independently, leading to a significant reduction in complexity
This implies that the communication does not require a dedicated modem, but instead it is piggybacked on top of the power electronics.
In other words, the modem cannot transmit packets when it is busy.
This offers an opportunity for novel thinking about how best to manage spectrum resources to enable efficient sharing.
Understanding spectrum efficiency can also assist policy makers better decide on how to most effectively allocate spectrum and to whom.

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