Cart (Loading....) | Create Account
Close category search window
 

Capacity bound of optical IM/DD channels using multiple-subcarrier modulation with fixed bias

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

2 Author(s)
You, R. ; Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA ; Kahn, J.M.

We consider the channel capacity of an optical intensity-modulated direct-detected (IM/DD) system using multiple-subcarrier modulation (MSM) with fixed bias. The channel is modeled as an additive white Gaussian noise (AWGN) channel with non-negative input waveform. The mean of the non-negative input waveform is the average transmitted power. The mean of the waveform during a symbol period is called the DC bias of the symbol and in this work is fixed for all symbols. Thus, the power used for each symbol is constant and equals the average transmitted power. The main result of this paper shows that, because the input waveforms during each symbol period are non-negative, their Fourier coefficients must form positive semi-definite (p.s.d.) sequences. Furthermore, these sequences are constrained inside the moment space of trigonometric functions. The volume of the moment space is calculated for both PAM and QAM cases. The capacity of each channel is shown to be upper-bounded by sphere-packing Gaussian noise in the respective moment space

Published in:

Communications, 2001. ICC 2001. IEEE International Conference on  (Volume:9 )

Date of Conference:

2001

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.