Browsing Electrical and Computer Engineering Faculty Research and Publications by Author "Natarajan, B."

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Browsing Electrical and Computer Engineering Faculty Research and Publications 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 ...
  • 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 ...