Title :
Performance analysis of an optical CDMA random access protocol
Author :
Shalaby, Hossam M H
Author_Institution :
Dept. of Electr. Eng., Univ. of Alexandria, Egypt
fDate :
5/1/2004 12:00:00 AM
Abstract :
A random-access protocol for an optical direct-detection code-division-multiple-access (CDMA) packet network is proposed. This protocol is called a round-robin receiver/transmitter (R3T) protocol. A mathematical description of the protocol is presented using a detailed state diagram. Several performance measures, namely, steady-state system throughput, protocol efficiency, and average packet delay, are derived based on the equilibrium point-analysis technique. The effect of several design parameters on the above performance measures have been examined with the aid of a set of numerical examples. In our numerical calculations chip-level models have been adopted at the receiver side. Our results reveal that an efficiency of more than 90% can be reached easily with mild system parameters. Further an asymptotic efficiency of ≈ 100% is also achievable.
Keywords :
amplitude shift keying; code division multiple access; encoding; optical fibre networks; optical links; optical receivers; chip-level models; code-division-multiple-access packet network; on-off keying; optical CDMA; optical channel; optical direct detection; optical link layer; optical networks; random access protocol; round-robin receiver/transmitter protocol; Access protocols; Delay; Multiaccess communication; Optical fiber networks; Optical receivers; Optical transmitters; Performance analysis; Semiconductor device measurement; Steady-state; Throughput; CDMA; Chip-level receivers; code division multiple access; direct-detection optical channel; on–off keying; optical CDMA; optical CDMA protocols; optical link layer; optical networks; random-access protocols;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2004.827659
