Sitaraman's early research centered on algorithms for building reliable parallel networks from unreliable components by emulating a virtual overlay network on top of an underlying unreliable parallel network.[9][3] Later, serving as a principal architect,[10] he helped build the Akamai network,[3] a large overlay network that currently delivers 15-30% of all web traffic using 190,000 servers in 110 countries in over 1,100 networks.[11] He is known for helping pioneer Iarge distributed networks for web content delivery, streaming media delivery, and application delivery on the Internet.[3][4] His current research is focused on energy efficiency of Internet-scale distributed networks.[8][12] He is also known for his early work in building large-scale video delivery networks,[10] measuring their performance,[13] and more recently studying the impact of streaming video performance on users.[14][15][16][17][18]
Recognition
Sitaraman was elected as an ACM Fellow in 2019 "for contributions to content delivery networks, distributed systems, and scalable Internet services".[19] He was elected as an IEEE Fellow in 2019 "for contributions to content delivery, internet performance and distributed systems".[20][21]
^F.T. Leighton, B. Maggs, and R. Sitaraman. "On the Fault Tolerance of Some Popular Bounded-Degree Networks, Proceedings of the 33rd Annual Symposium on Foundations of Computer Science (FOCS), October 1992, pp. 542-552". 1992. pp. 542–552. CiteSeerX10.1.1.35.9254.