Fax Over IP Gateways. I have been involved in the design and development of FoIP gateway (software) components with Enabling Technologies. These FoIP gateways facilitate real-time fax communication over the Internet as specified in the ITU-T Recommendation T.38. I have also worked on the development of a FoIP to FoATM Interworking Function that allows interworking of facsimile protocols over a network consisting of DSL links separated by and IP network.

Fault Isolation and Restoration in Telecommunications. This work involved the study of some basic concepts on fault isolation and restoration in WDM ring networks. The work also involved the design of protocols that would allow efficient communication of fault information and restoration commands between various nodes of a WDM ring network.

Monitoring the Performance of Data Networks. This project was a part of British Telecom’s University Research Initiative (URI) programme. The High Speed Networks Group at Loughborough University was awarded a 5-year research contract to develop architectures for intrusive network performance monitoring systems. I joined the project in its third year in 1996. By that time a network performance monitoring infrastructure had been implemented. Network monitors located at various sites all around UK were collecting several megabytes of primitive network performance monitoring data each day. I was tasked to implement incremental computational algorithms for processing these data so as to improve the performance of the overall data processing and analysis cycle.

British Telecom’s SMDS Operations Support Project. I worked on this project from July 1996 to March 1998. This project involved processing and analyses of network performance data collected by British Telecom and providing them with weekly reports on the behavior of different links of their SMDS network. These reports were compared with SLAs to ensure compliance.
Monitored performance data was stored in a customised database on a Sun UltraSparc station. Access to the database was provided by a C API. I was tasked to write applications (using the existing API) to fulfill various information requirements generated by BT’s operations and management staff. During the course of the project, I added to the functionality of the API. I was also involved in the development of a portable network performance monitoring system to be used by BT for diagnosing and isolating performance related problems faced by specific customers. This was accomplished by monitoring the network access at their sites and the core links used by that organisation.
I also automated the management of analysed performance information. This information is usually generated for the network managers as textual details and performance graphs. The prototype system developed in Visual BASIC allowed the users to link reports of related incidents on the network, thereby facilitating the identification and isolation of long term network effects and incidents in a user-friendly environment.

I developed an interest in image processing during my MSc project at Loughborough. My project was aimed at defining measures of image quality for JPEG images and then using them in an automatic test system for JPEG encoder decoder cards pair.

Later, as an academic visitor, I worked towards developing techniques that would help detect and classify various events in a sequence of images in transform domain. This work was basically a by product of research at Loughborough in error concealment in digital images and in surveillance video networks.

I have written test programs for ATE to functionally test equipment at a system or a sub-system level. I have worked on GPIB based ATE controllers and instruments. Some of my initial work on obsolete controllers motivated me to conduct studies on the management of obsolescence in ATE controllers. My MSc thesis was also based on the development of automatic test equipment for JPEG codecs.

I am mainly interested in the high level signal and data processing in EW receivers. These include data processing within the RWRs (Radar Warning Receivers), ESM (Electronic Support Measures) receivers and Elint (Electronic Intelligence) systems for emitter identification and threat analysis.

You can find some more information on Elint here