P. H. D. Ramakrishna

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The on board control, signal acquisition and communication (OBCSAC) subsystem is a critical component of all satellite systems. This paper presents the results of a feasibility study on realizing the design subsystem first on FPGA, and then on ASIC. Apart from giving the design details and results on a typical basic configuration, a number of extensions of(More)
Provable data possession (PDP) is a technique for ensuring the integrity of data in storage outsourcing. In this paper, we address the construction of an efficient PDP scheme for distributed cloud storage to support the scalability of service and data migration, in which we consider the existence of multiple cloud service providers to cooperatively store(More)
There are several numerical methods for computing approximate zeros of a given univariate polynomial. In this paper, we develop a simple and novel method for determining sharp upper bounds on errors in approximate zeros of a given polynomial using Rouche's theorem from complex analysis. We compute the error bounds using non-linear optimization. Our bounds(More)
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