Series Info:WMSCI 2006 - The 10th World Multi-Conference on Systemics, Cybernetics and Informatics, Jointly with the 12th International Conference on Information Systems Analysis and Synthesis, ISAS 2006 - Proc. 5
Type:Conference Paper
Keywords:Chip-level receivers
,
Code-division multiple-access
,
Correlation receivers
,
On-off keying
,
Optical CDMA protocols
,
Optical link layer
,
Optical networks
,
Queuing
,
Chip-level receivers
,
Correlation receivers
,
On-off keying
,
Optical CDMA
,
Queuing
,
Blocking probability
,
Communication systems
,
Cybernetics
,
Data communication systems
,
Fiber optic networks
,
Information science
,
Information systems
,
Management information systems
,
Mathematical models
,
Numerical analysis
,
Optical correlation
,
Optical links
,
Systems analysis
,
Code division multiple access
Abstract:
A new random access protocol for optical code division multiple access (CDMA) communication systems is proposed. Stop & wait automatic repeat request (ARQ) is implemented at the optical link layer. A detailed state diagram and a mathematical model based on the equilibrium point analysis (EPA) technique are presented. Several performance measures are evaluated under different network parameters. We also compare the performance of the proposed protocol to that of the round robin receiver/transmitter (R 3T) protocol which is based on a go back-n technique. Finally, the proposed protocol is analyzed when a queuing subsystem is added. We prove by numerical analysis that the proposed protocol is less complex and significantly outperforms the R 3T protocol. Our results also reveal that the performance of the proposed protocol with correlation receivers is competitive to that of the R 3T protocol with chip-level receivers, which reduces the overall system cost. We finally show that a slight improvement in the protocol's performance can be achieved by only adding a single buffer to the system. The blocking probability is also reduced and the queuing delays that added to the total network latency are still acceptable.
One of the most important core technologies in the development of optical code division multiple access (OCDMA) local area networks is the optical encoder/decoder embodiment technology which codes information to fixed ...
We introduce a queuing subsystem to an optical random access CDMA protocol, namely, the round robin receiver/transmitter (R 3T) protocol. A detailed state diagram is outlined and a mathematical model based on the equilibrium ...
Abdalla M.A.; Hassan A.Y.; Eldin A.M.G.(Institute of Electrical and Electronics Engineers Inc., 2015)
This paper exhibits a new compact high selective gap band pass filter designed for the 5 GHz WiMAX service. The filter is based on fourth order coupling of coupled gap composite right left handed transmission line resonators. ...