DocumentCode :
586691
Title :
Two-level signaling for IPACT in passive optical networks
Author :
Matsumoto, Shinichi ; Kamakura, Koji
Author_Institution :
Dept. of Comput. Sci., Chiba Inst. of Technol., Narashino, Japan
fYear :
2012
fDate :
28-31 Oct. 2012
Firstpage :
581
Lastpage :
585
Abstract :
The use of two-level intensity signal for interleaved polling with adaptive cycle time (IPACT) in passive optical networks (PONs) is presented. In the scheme, two different optical powers are used by two-grouped optical network units (ONUs) for their OOK modulation formats, and combined through the passive optical coupler on the way to the optical line terminal (OLT). The resultant quaternary signals are received, from which the receiver extracts each of data bits concurrently transmitted by the ONUs. Our two-level scheme allows to shorten the polling cycle time, which limits the fundamental performance of PONs. Quaternary signal reception at the OLT is analyzed in terms of bit error rate to be feasible with 5 dB power penalty compared to binary signal reception in typical PONs. Simulation results show that our two-level scheme offers smaller delay than IPACT, which is a benchmark Ethernet PON (EPON) polling protocol [1].
Keywords :
amplitude shift keying; error statistics; optical couplers; optical receivers; passive optical networks; IPACT; OOK modulation formats; adaptive cycle time; benchmark Ethernet PON polling protocol; bit error rate; interleaved polling; optical line terminal; passive optical coupler; passive optical networks; polling cycle time; quaternary signal reception; receiver; resultant quaternary signals; two-grouped optical network units; two-level intensity signal; Adaptive optics; Delay; EPON; IEEE 802.3 Standards; Optical network units; Optical receivers; Passive optical networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Theory and its Applications (ISITA), 2012 International Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4673-2521-9
Type :
conf
Filename :
6401004
Link To Document :
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