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Browsing Academic Colleges and Departments by Author "Natarajan, B."

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Analysis of the Performance of Decentralized Sensor Network with Correlated Observations

Gnanpandithan, N.; Natarajan, B. (Institute of Electrical and Electronics Engineers, 2007)

In this paper, we study the performance of a decentralized sensor network in the presence of correlated additive Gaussian noise. We propose a parallel genetic algorithm approach to simultaneously optimize both the fusion ...
Ant-colony based optimal MC-CDMA multiuser detector

Hijazi, S. L.; Best, A. J.; Natarajan, B.; Das, S. (Institute of Electrical and Electronics Engineers, 2005)

In this paper, we present a novel multiuser detection (MUD) technique based on ant colony optimization (ACO), for synchronous multi-carrier code division multiple access (MC-CDMA) systems. ACO algorithms are based on the ...
The effects of climate variability and the color of weather time series on agricultural diseases and pests, and on decisions for their management

Dobson, A. D. M.; Kroschel, J.; Natarajan, B.; Orlandini, S.; Tonnang, H. E. Z.; Valdivia, C.; Garrett, Karen A. (2013)

If climate change scenarios include higher variance in weather variables, this can have important effects on pest and disease risk beyond changes in mean weather conditions. We developed a theoretical model of yield loss ...
An Evolutionary Approach to Designing Complex Spreading Codes for DS-CDMA

Natarajan, B.; Das, S,; Stevens, D. (Institute of Electrical and Electronics Engineers, 2005)

This paper proposes a novel evolutionary approach to spreading code design in direct sequence code division multiple access (DS-CDMA). Specifically, a multiobjective evolutionary algorithm (EA) is used to generate complex ...
Introduction of carrier interference to spread spectrum multiple access

Nassar, C.R.; Natarajan, B.; Shattil, S. (Institute of Electrical and Electronics Engineers, 2009)

This paper introduces a new scheme for spread spectrum multiple access. Like MC-CDMA, this scheme accomplishes spectral spreading by transmission of identical data over N carriers simultaneously. However, unlike any existing ...
Performance Analysis of Asynchronous Carrier InterferometryMC-CDMA Uplink with Interference Cancellation Techniques

Thippavajjula, V.; Natarajan, B. (Institute of Electrical and Electronics Engineers, 2005)

In this paper, we analyze the uplink performance of an asynchronous carrier interferometry/MC-CDMA, with nonlinear parallel and serial interference cancellation techniques. Specifically, we employ the new variant of parallel ...
Performance of Parallel Decentralized Sensor Network with Decision Feedback

Kopparthi, S.; Natarajan, B. (Institute of Electrical and Electronics Engineers, 2007)

In most previous studies, distributed sensor networks are typically assumed to be memory less. In this paper, we consider a distributed sensor network with feedback at both the sensor level as well as at the fusion center. ...
Throughput Enhancement in TDMA through Carrier Interferometry Pulse Shaping

Natarajan, B.; Nassar, C.R.; Shattil, S. (Institute of Electrical and Electronics Engineers, 2000)

This paper introduces a novel TDMA scheme that provides enhanced throughput by employing carrier interferometry pulse shapes (CI pulse shapes). At the transmitter, CI pulse shapes are created from the superposition of N ...

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Browsing Academic Colleges and Departments by Author "Natarajan, B."

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Browsing Academic Colleges and Departments by Author "Natarajan, B."

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