Now showing items 74-93 of 107

  • Real-time processing of speech signals using networked computers 

    Pendse, Ravi; Yip, A.W.; Hoyer, E.A. (IEEE, 1997-08-03)
    In this paper, parallel processing of speech analysis techniques using networked computers is considered. A unique multiprocessor structure and algorithms have been developed. Results are presented demonstrating that ...
  • Real-time speech signal analysis-synthesis of the Hoyer-Narris model using networked computers 

    Yip, A.W.; Pendse, Ravi; Hoyer, E.A. (IEEE, 1997-08-06)
    The Hoyer-Harris model (H2M) extracts the fundamental information of the speech signal to provide the knowledge for speech signal processing. Because of the complex algorithm, real-time analysis is not possible on a personal ...
  • RFID security threats to consumers: Hype vs. reality 

    Rao, Shantanu; Thanthry, Nagaraja; Pendse, Ravi (IEEE, 2007-10-08)
    Radio frequency identification (RFID) tags are being adopted rapidly by retail giants such as Wal-Mart In the near future these tags will be used for item level tracking of consumer products such as milk cartons, television ...
  • Route optimized nested mobility solution using PAT 

    Dattani, M.; Thanthry, Nagaraja; Best, Patricia K.; Bhagavathula, Ravi; Pendse, Ravi (IEEE, 2004-09-26)
    Mobile computing is becoming increasingly important due to the rise in the number of portable computers and the desire to have continuous network connectivity to the Internet, irrespective of the physical location of the ...
  • RRQR based closed-form blind carrier offset estimator for OFDM systems 

    Qasaymeh, M.M.; Nizar, T.; Hiren, G.; Sawan, M. Edwin; Pendse, Ravi (IEEE, 2009-05-25)
    Carrier Frequency Offset (CFO) is one of the major drawbacks of the Multi Carrier Modulation (MCM) technique. Blind, semiblind and data-aided techniques have been introduced to estimate the CFO. In this paper, a new blind ...
  • Scalable QoS provisioning for mobile networks using wireless sensors 

    Bahety, V.; Pendse, Ravi (IEEE, 2004-03-21)
    In the past few years support for mobility has increased to a large extent. Mobile IP enables nodes to move from one network to the other while maintaining the same IP address. Minimal packet loss during handoff is a ...
  • Security in multi-tenancy cloud 

    Jasti, Amarnath; Shah, Payal Hemchand; Nagaraj, Rajeev; Pendse, Ravi (IEEE, 2010-10-05)
    Cloud computing creates exciting opportunities like reduced costs and flexibility to the users. It also comprises of some risks like data security within the cloud. Several common security threats like data leakage, insecure ...
  • Selective prefetching: prefetching when only required 

    Pendse, Ravi; Katta, H. (IEEE, 1999)
    Cache memories are commonly used to reduce the number of slower lower-level memory accesses, thereby improving the memory hierarchy performance. However, high cache miss-ratio can severely degrade system performance. It ...
  • Self-learning ad-hoc routing protocol 

    Best, Patricia K.; Gundeti, S.; Pendse, Ravi (IEEE, 2003-10-06)
    As the technologies for ad-hoc networks emerge, an ad-hoc routing protocol that can supply connectivity to mobile devices while utilizing a minimal amount of bandwidth as overhead becomes increasingly important. Minimal ...
  • Semiblind multiuser MIMO channel estimators using PM and RRQR methods 

    Pendse, Ravi; Hiren, G.; Sawan, M. Edwin; Qasaymeh, M.M.; Nizar, T. (IEEE, 2009-05-11)
    Estimating the channel state information (CSI) of several transmitters that use orthogonal space-time block codes (OSTBC) to communicate with a single receiver is considered. Based on rank revealing QR (RRQR) factorization ...
  • Statistical estimation of route expiry times in on-demand ad hoc routing protocols 

    Arbindi, Srividya; Namuduri, Kameswara; Pendse, Ravi (IEEE, 2005-11-07)
    On-demand routing protocols discover routes only when the source node has a packet to send to the destination. These protocols cache previously discovered routes in order to reduce the routing overheads as well as to ...
  • Study of mobile IP module in OPNET network simulator 

    Jasti, Amarnath; Thanthry, Nagaraja; Pendse, Ravi (2004-08)
  • Study of PSTN circuit switched model in OPNET 

    Bhagavathula, Ravi; Thanthry, Nagaraja; Hardikar, K.; Pendse, Ravi (OPNETWORK 2002, 2002-08)
    VoIP is an emerging technology aimed at leveraging the benefits offered by an IP network for both voice and data transmission. The integration of voice and data traffic onto a single network is led by a demand for multi-service ...
  • Subspace based blind CFO estimation for OFDM by exploiting used carriers 

    Hiren, G.; Qasaymeh, M.M.; Tayem, N.; Pendse, Ravi; Sawan, M. Edwin (IEEE, 2009-03-30)
    Orthogonal frequency division multiplexing (OFDM) is a promising technique to handle impairments of multipath channel. Alternatively, one of its major drawbacks is the drift in reference carrier, which is known as carrier ...
  • SVSS: An intelligent video surveillance system for aircraft 

    Thanthry, Nagaraja; Emmuadi, Indira P.; Srikumar, Aravind; Namuduri, Kameswara; Pendse, Ravi (IEEE, 2007-10-21)
    Safety and security are the most discussed topics in the aviation field. Latest security initiatives in the field of aviation propose the aircraft carriers to implement video surveillance within the aircraft at strategic ...
  • TCP state-based service differentiation in wireless network 

    Gorde, S.; Thanthry, Nagaraja; Pendse, Ravi (OPNETWORK 2003, 2003-08)
    In traditional computer networks, service differentiation is done based on application flows. This results in high packet loss for low priority traffic flows. If the low priority flows are TCP based applications then the ...
  • Teaching an undergraduate class vs. graduate class: is there a difference? 

    Pendse, Ravi; Johnson, Everett L. (IEEE, 1996-11-06)
    During the past few years, prior to obtaining his doctorate, the first author had considerable experience and success teaching several undergraduate courses in digital system design. The observation that the courses were ...
  • Teaching techniques-what works for me 

    Pendse, Ravi (1994-03)
  • Teaching VHDL- trials and tribulations 

    Pendse, Ravi (1997-04)
  • Teaching with OPNET: WSU’s experiences 

    Bhagavathula, Ravi; Thanthry, Nagaraja; Sambaari, A.; Pendse, Ravi (OPNETWORK 2002, 2002-08)
    Wichita State University is been offering many courses in the field of networking. Apart from gaining knowledge about different networking concepts, students at WSU get a chance to design and configure a live network using ...