Dr Vindya Wijeratne

Teaching

Communications and Networks (Undergraduate)

This compulsory module covers the basic concepts in communications and networks. It introduces the concept of a communications system and then focusses on specific elements. It covers circuit and switched versus packet switched networks, and the ISO/OSI 7 layer model. Also covered are certain critical network protocols, e.g. TCP/IP and CSMA/CD, key Internet concepts, converged networks, and mobile networks.

Introductory Java Programming (BUPT joint programme)

Research

Research Interests:

• Improving Quality of Experience (QoE) in LTE networks specifically related to bufferbloat issues 
• Performance evaluation of IP networks specifically related to non-FIFO scheduling and differentiated services
• Green networking - saving energy in the core and access networks while maintaining QoS
• Virtual testbeds, e.g. currently working with Juniper Networks on employing their virtual router platform (Junosphere) and supporting SDK in enhancing networking research and teaching at QMUL

Publications

• Ai T, WIJERATNE VA, Wahid A (2015). Impact of buffer sizing on energy efficiency and performance.

  
  

  DOI: 10.1049/iet-net.2013.0043

  
  

  QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/8280
• WIJERATNE VA, Yu H, Cai Z (2013). An energy-efficient network implemented with Junos SDK. IEEE Consumer Communications and Networking Conference

  
  

  DOI: 10.1109/CCNC.2013.6488549

  
  

  QMRO:
• Amaradasa V, Schormans J, Pitts J et al. (2009). Evaluating overflow probability for voice over internet protocol buffer dimensioning.

  
  

  DOI: 10.1049/iet-com.2008.0213

  
  

  QMRO: