By Topic

A novel fiber-optic local access system adopting the “service-uniform” ONU

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Onoda, T. ; NTT Opto-Electron. Labs., Ibaraki, Japan ; Tsujioka, T. ; Kakinuma, R. ; Yamano, S.

A novel fiber-optic local access system is presented that removes the DSPs from each optical network unit (ONU) and places them into the central office (CO). The proposed system yields a small, service-uniform ONU. The service-uniform ONU supports a wide range of narrowband services with no distinction; plain old telephone service (POTS), ISDN basic rate access (BRA) etc. Moreover, the proposed system dramatically decreases the total number of DSPs needed by concentrating them into the CO. To realize this system at the lowest cost, a high-speed code division multiplexing (CDM) scheme with novel code word sets is developed. Realized as a CMOS logic device, the proposed CDM MUX/DEMUX can operate at 250 MHz which corresponds to 50 channel multiplexing of any service in the 3.4 kHz~320 kHz bandwidth

Published in:

Communications, 1995. ICC '95 Seattle, 'Gateway to Globalization', 1995 IEEE International Conference on  (Volume:1 )

Date of Conference:

18-22 Jun 1995