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- Ashok Erramilli, Onuttom Narayan, Walter Willinger
- IEEE/ACM Trans. Netw.
- 1996

Oscillators are often difficult to analyze or simulate, because they generate waveforms that can span a range of widely separated time scales. We present a general oscillator formulation that separates slow and fast dynamics without approximations, and captures amplitude and frequency modulation in a natural and compact manner. To handle… (More)

- Onuttom Narayan, Iraj Saniee
- Physical review. E, Statistical, nonlinear, and…
- 2011

Understanding key structural properties of large-scale networks is crucial for analyzing and optimizing their performance and improving their reliability and security. Here, through an analysis of a collection of data networks across the globe as measured and documented by previous researchers, we show that communications networks at the Internet protocol… (More)

- Ashok Erramilli, Onuttom Narayan, Arnold L. Neidhardt, Iraj Saniee
- INFOCOM
- 2000

Recent measurement and simulation studies have revealed that wide area network traffic has complex statistical—possibly multifractal—characteristics on short timescales, and is self-similar on long timescales. In this paper, using measured TCP traces and queueing simulations, we show that the fine timescale features can affect performance substantially at… (More)

- Sunil Arya, David M. Mount, Onuttom Narayan
- Symposium on Computational Geometry
- 1995

Given n data points in d-dimensional space, nearest neighbor searching involves determining the nearest of these data points to a given query point. Most averagecase analyses of nearest neighbor searching algorithms are made under the simplifying assumption that d is fixed and that n is so large relative to d that boundary effects can be ignored. This means… (More)

- Onuttom Narayan
- 1998

For a storage model with a fractional Brownian input process, an exact asymptotic expression for the queue length distribution is obtained, using a few plausible assumptions. The probability that the queue length is greater than x is shown to be asymptotically proportional to a Weibullian function multiplied by x ? : For a fractional Brownian input process… (More)

- Onuttom Narayan, Sriram Ramaswamy
- Physical review letters
- 2002

We show that for one-dimensional fluids the thermal conductivity generically diverges with system size L as L(1/3), as a result of momentum conservation. Our results are consistent with the largest-scale numerical studies of two-component hard-particle systems. We suggest explanations for the apparent disagreement with studies on Fermi-Pasta-Ulam chains.

- Ashok Erramilli, Onuttom Narayan, Arnold L. Neidhardt, Iraj Saniee
- Journal of Communications and Networks
- 2001

Recent measurement and simulation studies have revealed that wide area network traffic displays complex statistical characteristics-possibly multifractal scaling-on fine timescales, in addition to the well-known property of self-similar scaling on coarser timescales. In this paper we investigate the performance and network engineering significance of these… (More)

The ability of oligonucleotide microarrays to measure gene expression has been hindered by an imperfect understanding of the relationship between input RNA concentrations and output signals. We argue that this relationship can be understood based on the underlying statistical mechanics of these devices. We present a model that includes the relevant… (More)

- William Sean Kennedy, Onuttom Narayan, Iraj Saniee
- ArXiv
- 2013

Through detailed analysis of scores of publicly available data sets corresponding to a wide range of large-scale networks, from communication and road networks to various forms of social networks, we explore a little-studied geometric characteristic of real-life networks, namely their hyperbolicity. In smooth geometry, hyperbolicity captures the notion of… (More)