@article{subramanian_dutta_2011, title={A study of performance and scalability metrics of a SIP proxy server - a practical approach}, volume={77}, ISSN={["0022-0000"]}, DOI={10.1016/j.jcss.2010.08.006}, abstractNote={In recent years, Internet Protocol (IP) telephony has been a real alternative to the traditional Public Switched Telephone Networks (PSTN). IP telephony offers more flexibility in the implementation of new features and services. The Session Initiation Protocol (SIP) is becoming a popular signalling protocol for Voice over IP (VoIP) based applications. The SIP proxy server is a software application that provides call routing services by parsing and forwarding all the incoming SIP packets in an IP telephony network. The efficiency of this process can create large scale, highly reliable packet voice networks for service providers and enterprises. We established that the efficient design and implementation of the SIP proxy server architecture can enhance the performance characteristics of a SIP proxy server significantly. Since SIP proxy server performance can be characterised by its transaction states of each SIP session, we emulated the M/M/1 performance model of the SIP proxy server and studied some of the key performance benchmarks such as average response time to process the SIP calls, and mean number of SIP calls in the system. We showed its limitations, and then studied an alternative M/M/c based SIP proxy server performance model with enhanced performance model and studied additional key performance characteristics such as server utilisation, queue size and memory utilisation. Provided the comparative results between the predicted results with the experimental results conducted in a lab environment.}, number={5}, journal={JOURNAL OF COMPUTER AND SYSTEM SCIENCES}, author={Subramanian, Sureshkumar V. and Dutta, Rudra}, year={2011}, month={Sep}, pages={884–897} }
 @article{subramaniam_lee_2007, title={Ultrasonic assessment of early-age changes in the material properties of cementitious materials}, volume={40}, ISSN={["1871-6873"]}, DOI={10.1617/s11527-006-9107-y}, number={3}, journal={MATERIALS AND STRUCTURES}, author={Subramaniam, Kolluru V. and Lee, Jaejun}, year={2007}, month={Apr}, pages={301–309} }
 @article{lavian_hoang_travostino_wang_subramanian_monga_2004, title={An extensible, programmable, commercial-grade platform for Internet service architecture}, volume={34}, ISSN={["1558-2442"]}, DOI={10.1109/TSMCC.2003.818497}, abstractNote={With their increasingly sophisticated applications, users promote the notion that there is more to a network (be it an intranet, or the Internet) than mere L1-3 connectivity. In what shapes a next generation service contract between users and the network, users want the network to offer services that are as ubiquitous and dependable as dial tones. Typical services include application-aware firewalls, directories, nomadic support, virtualization, load balancing, alternate site failover, etc. To fulfill this vision, a service architecture is needed. That is, an architecture wherein end-to-end services compose, on-demand, across network domains, technologies, and administration boundaries. Such an architecture requires programmable mechanisms and programmable network devices for service enabling, service negotiation, and service management. The bedrock foundation of the architecture, and also the key focus of the paper, is an open-source programmable service platform that is explicitly designed to best exploit commercial-grade network devices. The platform predicates a full separation of concerns, in that control-intensive operations are executed in software, whereas, data-intensive operations are delegated to hardware. This way, the platform is capable of performing wire-speed content filtering, and activating network services according to the state of data and control flows. The paper describes the platform and some distinguishing services realized on the platform.}, number={1}, journal={IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART C-APPLICATIONS AND REVIEWS}, author={Lavian, T and Hoang, DB and Travostino, F and Wang, PYH and Subramanian, S and Monga, I}, year={2004}, month={Feb}, pages={58–68} }