Title :
WDMA/subcarrier-FDMA lightwave networks: limitations due to optical beat interference
Author :
Shankaranarayanan, N.K. ; Elby, Stuart D. ; Lau, Kam Y.
Author_Institution :
Columbia Univ., New York, NY, USA
fDate :
7/1/1991 12:00:00 AM
Abstract :
The authors present a general model of optical beat interference, and its contribution of channel outage in a WD-SFDMA (wavelength division-subcarrier frequency division multiple access) network. The probability of channel outage due to optical beat interference is determined from analysis and computer simulation for externally and directly modulated single-mode lasers. These results are used to calculate the ultimate limitation on the throughput and capacity of the network due to beat note interference, for a simple retransmission protocol. It is shown that, as more subcarrier channels are added, network capacity increases sublinearly and eventually saturates
Keywords :
frequency division multiple access; light interference; optical communication; optical links; protocols; beat note interference; channel outage; computer simulation; directly modulated single-mode lasers; network capacity; optical beat interference; simple retransmission protocol; subcarrier channels; throughput; wavelength division subcarrier frequency division multiple access network; Bandwidth; Frequency; Interference; Laser tuning; Optical fiber networks; Optical filters; Optical mixing; Optical modulation; Optical saturation; Semiconductor lasers;
Journal_Title :
Lightwave Technology, Journal of
