SIM+
SIM+ is a slotted time
simulator, based on the fixed-length packet simulator SIM developed by
the High Performance Networking Group.The simulator is written in ANSI
C. It can
be used to evaluate the performance of a variety of switching
architectures using different queueing, scheduling or transmission
schemes, as specified by the user. SIM+ improves upon SIM by providing
users a provision to specify flow level parameters. Flow level
parameters help the user to control the individual QOS of each flow.
SIM+ has augmented the statistics with per- flow information, thus
helping the user to determine the QOS guarantees.
SIM+2.02 is
available for download here. SIMIM++3.1 is
available for download here. For more
information on SIM go to the SIM home page.
OPNET
OPNET is the industry's leading
network development software. OPNET allows you to design and
study communication networks,devices, protocols, and
application. It is used by the world's most prestigious
technology organizations to accelerate the R&D process. Opnet’s
object-oriented
modeling approach and graphical user interface(GUI) enable relatively
easy means of developing models from the actual world network, hardware
devices, and protocols.OPNET supports all major network types and
technologies, allowing you to design and test various scenarios with
reasonable certainty of the output results. The application areas include:
1) Network
planning (both LAN and/or WAN) and analysis of performance and problems
prior to actual implementation; 2) Wireless and Satellite
communication schemes and protocols; 3) Microwave and
Fiber-optic based Network Management; 4) Protocol Development and
management; and 5) Routing algorithm evaluation for routers, switches,
and other connecting devices.
At WLAN , we currently use
OPNET for teaching and research purposes. Research activities in the
area of end system multicasting have been carried out using OPNET's
multicast module. Peformance analysis of End System Multicast models
have been efficiently carried out. For
more information on OPNET go to the OPNET
home page
QUALNET
QualNet is the next generation
of the scalable GlMoSim (Global Mobile Information Systems Simulator)
simulator. Glomosim was designed to simulate large-scale wireless
networks with thousands of mobile nodes, each of which may different
communication capabilities via multi-hop ground,aircraft and satellite
media. QualNet has extended GloMoSim's capabilities to wired networks
as well as mixed wired and wireless networks. QualNet uses the parallel
simulation kernel provided by the PARSEC discrete-event simulation
language. Thus Qualnet is among the few simulators for wireless and
wired networks that been implemented on sequential and parallel
architectures.
At WLAN , we currently
useQualNet for teaching and research purposes. Research activities in
the area of mixed-mode simulations are carried out in QualNet. For more
information on QualNet go to the QualNet
home page
