K. V. S. Hari

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Source(s) V. Erceg, Iospan Wireless Inc., USA K.V. S. Hari, Stanford University, USA M.S. Smith, Nortel Networks, GB D.S. Baum, Stanford University, USA K.P. Sheikh, Sprint, USA C. Tappenden, Nortel Networks, CND J.M. Costa, Nortel Networks, CND C. Bushue, Sprint, USA A. Sarajedini, BeamReach Networks R. Schwartz, BeamReach Networks D. Branlund, BeamReach(More)
This article provides an overview of fixed broadband wireless access technology. Focusing on the band below 3 GHz, we describe BWA service and carrier needs, deployment scenarios, architectural requirements, physical layer, medium access control, and radio link protocol requirements. We characterize fixed BWA channels, outline the major challenges of fixed(More)
Novel transmit antenna selection techniques are conceived for Spatial Modulation (SM) systems and their symbol error rate (SER) performance is investigated. Specifically, low-complexity Euclidean Distance optimized Antenna Selection (EDAS) and Capacity Optimized Antenna Selection (COAS) are studied. It is observed that the COAS scheme gives a better SER(More)
In this paper, the effect of using a spatially smoothed forward-backward covariance matrix on the performance of weighted eigen-based state space methods/ESPRIT, and weighted MUSIC for the direction-of-arrival (DOA) estimation is analyzed. Expressions for the mean-squared error in the estimates of the signal zeros and the DOA estimates, along with some(More)
In this paper, we consider spatial modulation (SM) operating in a frequency-selective single-carrier (SC) communication scenario and propose zero-padding instead of the cyclicprefix considered in the existing literature. We show that the zeropadded single-carrier (ZP-SC) SM system offers full multipath diversity under maximum-likelihood (ML) detection,(More)
In this paper, we propose modulation diversity techniques for Spatial Modulation (SM) system using Complex Interleaved Orthogonal Design (CIOD) meant for two transmit antennas. Specifically, we show that by using the CIOD for two transmit antenna system, the standard SM scheme, where only one transmit antenna is activated in any symbol duration, can achieve(More)