Broadband White Papers

Study on Satellite Communications Using Ultra Wideband (UWB) Signals

Overview In this paper, the possibility of satellite communication systems using a multiband UWB signal format is considered. For terrestrial short-distance high-speed communications, multiband UWB schemes are proposed in IEEE 802.15 TG3a and the discussion is ongoing at the standardization body. In the multiband UWB scheme, frequency hopping is adopted over 3.1 - 10.6 GHz, which is regulated by the FCC (Federal Communication Commission) of the U.S.A., and the bandwidth of one hopping spectrum (subband) is about 500 MHz. Multiband technology inherently has some suitable characteristics for terrestrial UWB such as applicability to variable transmission rates, avoidance of harmful interference to other systems, simple localizability of frequency allocations, and so forth.

Further White Paper Details
PublisherKDDI R&D Laboratories File FormatPDF
Date PublishedOctober 2003
FormatWhite Papers   
Topics

The business value of Web 2.0 technology.

Benefits of enterprise mobility span the business-to-employee (B2E), business-to-business (B2B) and business-to-consumer (B2C) spectrums. Enterprise mobil-ity can improve an organization's productivity, optimizelogistics operations, enhance customer relationships and streamline supply chain...

Three-Screen Advertising: New Ad Revenues for Service Providers

Media companies have long benefited from dual revenue streams, selling content to consumers while also selling time or space to advertisers. Service providers are now entering the media business with...

Ushering WiMAX to the Frontlines of Malaysia

Though having a strong first mover advantage, Mobile WiMAX 16e is a completely new technology to Malaysians, hence, it is important for P1 to convince and convert its prospects to...

MIMO: From Theory to Reality

Driven by the even growing demand of higher data rate with the scarce spectrum resource, the theoretical breakthrough has been made and demonstrated significant increase on channel capacity (spectral efficiency)...

  • Publisher:

An Introduction to ISDN

ISDN is a digital communications network providing transmission rates in multiples of 64kbits per second. Typically described as 2B + D, Basic Rate ISDN (BRI) logically uses 2 64 kbit/s...


Quick Sitemap Links: