About

Our expertise is in the modelling, simulation and analysis of communications systems and networks.

The outputs of our work are delivered in many forms, as determined by particular client needs, and range from delivery of complex software systems through to technical reports through to educational courses and seminars.

Some of the skills and techniques we have applied to solving client problems are listed below.

Technologies and Applications

• Circuit switching (fixed, mobile)
• Packet switching (IP, ATM, Frame Relay)
• Distributed servers
• Internet (IP, TCP, UDP, MPLS, DiffServ)
• IP, ATM, Frame Relay, ISDN
• Mobile (GSM, CDMA, GPRS, UMTS, 3G, WCDMA)
• Satellite
• MANETs
• Tactical Data Links
• Signalling and Intelligent Network (SS7, TCAP, INAP)
• World Wide Web (HTTP)
• Voice over IP (VoIP)

Areas of Analysis

• Traffic modelling
• Bottleneck analysis
• Quality of Service prediction
• Performance monitoring
• Congestion / flow / admission control
• Network dimensioning
• Switch and network design

Analysis Techniques

• Computer simulation, including OpNet, NS-2, Java, C/C++
• Basic and advanced queueing theory
• Linear and non-linear programming
• Heuristic algorithms
• Matrix analytic methods
• Wavelet analysis
• Time series analysis
• Kernel density estimation

Technology Transfer

• Technical reports
• Requirements specification
• Software tools and prototypes
• Consulting
• Standards representation
• Education