Title
Efficient Scheduling Algorithms for Real-Time Service on WDM Optical Networks
Abstract
One of the important issues in the design of future generation high-speed networks is the provision of real-time services to different types of traffic with various time constraints. In this paper we study the problem of providing real-time service to hard and soft real-time messages in Wavelength-Division-Multiplexing (WDM) optical networks. We propose a set of scheduling algorithms which prioritize and manage message transmissions in single-hop WDM passive star networks based on specific message time constraints. In particular, we develop time-based priority schemes for scheduling message transmissions in order to increase the real-time performance of a WDM network topology. We formulated an analytical model and conducted extensive discrete-event simulations to evaluate the performance of the proposed algorithms. We compared their performances with that of the state-of-the-art WDM scheduling algorithms which typically do not consider the time constraint of the transmitted messages. This study suggests that when scheduling real-time messages in WDM networks, one has to consider not only the problem of resources allocation in the network but also the problem of sequencing messages based on their time constraints.
Year
DOI
Venue
1998
10.1023/A:1010075023391
Photonic Network Communications
Keywords
DocType
Volume
optical networks,Wavelength-Division-Multiplexing (WDM),real-time scheduling,multiple-access protocols
Conference
1
Issue
ISSN
ISBN
2
1572-8188(Series Online ISSN)1387-974X(Series Print ISSN)
0-8186-9014-3
Citations 
PageRank 
References 
10
0.77
11
Authors
3
Name
Order
Citations
PageRank
Maode Ma11255163.24
Hamidzadeh Babak218424.99
Mounir Hamdi384794.24