Krishna Ramachandran

Citrix Online
Santa Barbara, CA


Email: firstname.lastname@citrix.com

Ph.D. in Computer Science, University of California, Santa Barbara, 2007
M.S. in Computer Science, University of California, Santa Barbara, 2003
B.E. in Computer Engineering, Pune University, India, 2000

Research Interests

I am interested in overlay networking, routing protocols, VoIP, and anything to do with wireless systems.

At Citrix Online, I help build scalable network services that can support Internet-scale, real-time collaboration.

My PhD dissertation title is "Design, Deployment, and Management of High-capacity Large-scale Wireless Networks". My dissertation offers a network architecture for high-capacity, multi-radio, multi-channel wireless mesh networks. This architecture incorporates solutions for high-throughput routing, interference-aware channel assignment, mobility management, network monitoring, and network management. The UCSB MeshNet is a prototype mesh network constructed using this architecture.

Publications

Some of my representative publications are given below. See here for a full list.

K. Ramachandran, I. Sheriff, E. Belding, K. Almeroth, A Multi-radio Wireless Mesh Network Architecture, ACM/Springer Mobile Networks and Applications (MONET) Journal, Special Issue on Advances in Wireless Mesh Networks, to appear in 2008.

K. Ramachandran, I. Sheriff, E. Belding-Royer, K. Almeroth, Routing Stability in Static Wireless Mesh Networks, Passive and Active Measurement Conference, Louvain-la-neuve, Belgium, April 2007 (best paper award).

A. Jardosh, K. Mittal, K. Ramachandran, E. Belding, K. Almeroth, IQU: Practical Queue-Based User Association Management for WLANs, ACM MobiCom, Los Angeles, September, 2006.

K. Ramachandran, E. Belding, K. Almeroth, M. Buddhikot, Interference-Aware Channel Assignment in Multi-Radio Wireless Mesh Networks, IEEE Infocom, Barcelona, Spain, April, 2006. (The above MONET paper describes a full-scale implementation of this work and much more).

Projects, Software, and Datasets

Split Wireless Multi-Radio Router
Multi-radio Mesh Network Architecture
MeshNet dataset - contains link quality data between the MeshNet nodes.
AODV-ST - an enhanced AODV routing protocol
MeshNet - multi-radio mesh testbed at UCSB
Wireless Open Research Kit - open-source mesh development kit
Congestion Analysis of Wireless Networks - congestion in WiFi networks is bad!
AODV on WRT54G - How to turn a $50 WiFi AP into a mesh router
DAMON: Mobile Network Monitoring Tool - a mesh network monitoring tool
AODV@IETF - IETF conference ad hoc network deployment
IGMP DoS: BugTraq Id - DoS vulnerability in several IGMP implementations.

Professional Service

Program Committee member, BroadNets 2008
Program Committee member, WoWMoM 2007

Industry Experience

I work as a research scientist with Citrix Online.

My first venture attempt: Smarthop Networks (formerly Wi-Yu) in the news here and here.

During graduate school, I spent summers at Citrix Online, Bell Labs, and Microsoft Research.

I worked for Cisco Systems a while back.

Etcetera