Arun K. Somani

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Information integrity in cache memories is a fundamental requirement for dependable computing. Conventional architectures for enhancing cache reliability using check codes make it difficult to trade between the level of data integrity and the chip area requirement. We focus on transient fault tolerance in primary cache memories and develop new architectural(More)
We consider the problem of establishing <i>dependable connections</i> in WDM networks with dynamic traffic demands. We call a connection with fault-tolerant requirements as a dependable connection (D-connection). We consider the <i>single-link failure model</i> in our study and recommend the use of a proactive approach, wherein a D-connection is identified(More)
This paper considers the problem of dynamically establishing dependable connections (D-connections) with specified failure restoration guarantees in wavelength-routed wavelength-division multiplexed (WDM) networks. We call a connection with fault tolerant requirements as a D-connection. We recommend using a pro-active approach to fault tolerance wherein a(More)
Recent advances in photonic switching have paved the way for realizing all-optical time switched networks. The current technology of Wavelength Division Multiplexing (WDM) offers bandwidth granularity that match peak electronic transmission speed by dividing the fiber bandwidth into multiple wavelengths. However, the bandwidth of a single wavelength is too(More)
OPTICAL NETWORKS MAGAZINE: ISSN 1388-6916 is published bimonthly in 2001 by SPIE—The International Society for Optical Engineering, P.O. Box 10, Bellingham WA 98227-0010 USA and Kluwer Academic Publishers, 101 Philip Drive, Norwell, MA 02061 USA. Articles and reviews published herein reflect the opinion of the author(s); inclusion of articles and(More)