Amit B. Kulkarni

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This paper describes an approach to detecting distributed denial of service (DDoS) attacks that is based on fundamentals of Information Theory, specifically Kolmogorov Complexity. A theorem derived using principles of Kolmogorov Complexity states that the joint complexity measure of random strings is lower than the sum of the complexities of the individual(More)
Active network technology envisions deployment of virtual execution environments within network elements, such as switches and routers. As a result, inhomogeneous processing can be applied to network traffic. To use such technology safely and efficiently, individual nodes must provide mechanisms to enforce resource limits. This implies that each node must(More)
OBJECTIVES Renal transplantation is a well-accepted therapeutic option for patients with end stage renal disease. Renal artery stenosis occurring in a transplanted kidney is a potentially serious condition and adversely affects graft survival and prognosis. The objective of this study is to document the immediate and intermediate term clinical results of(More)
This paper explores achieving “application/network adaptation” in wide-area networks supporting mobile users through the use of an active network technology. Network flexibility is achieved through the introduction of SmartPackets which carry address information, user data, and user-specified methods that act on the SmartPacket as it traverses the network.(More)
Severe pulmonary hypertension in a teenager with end-stage renal disease on chronic hemodialysis via arteriovenous access is reported. Clinical presentation included persistent volume overload and pericardial effusion. Serial hemodynamic data obtained at cardiac catheterization confirmed the diagnosis. In addition, detailed biochemical and imaging data(More)
This study is the first known implementation of jitter control in an active network. Jitter control is performed by active packets in a distributed packet by packet basis within an active network rather than on a per flow basis as in today’s passive networks. This provides many new benefits and challenges. The concept and results of an experimental(More)