Now showing items 115-134 of 262

  • Issues with nested mobility 

    Bhagavathula, Ravi; Thanthry, Nagaraja; Namuduri, Kameswara; Pendse, Ravi (IEEE, 2003-10-06)
    Mobility and Internet access have become an integral part of today's life. The recent advances in computer hardware have also aided in increasing the dependence on Internet connectivity. Protocols like mobile IP were ...
  • Joint time delay and frequency estimation without eigen-decomposition 

    Qasaymeh, Mahmoud Mohammad; Gami, Hirenkumar; Tayem, Nizar Abdel-Hafeeth Mohammad; Sawan, M. Edwin; Pendse, Ravi (2009-05)
    In this letter, we addressed the problem of estimating the time delay and the frequencies of noisy sinusoidal signals received at two spatially separated sensors. We employ the Propagator Method (PM) in conjunction with ...
  • Kalman-Bucy filters with singular correlated noises 

    Hadiji, M.M.; Sawan, M. Edwin (IEEE, 1989-06-21)
    This paper presents a solution to the singular linear minimum-vaviance estimation problem in the discrete time case. An expression for the transfer function of the Kalman-Bucy filter with nonsingular correlated noises is ...
  • The Kansas electric utilities research program: a model of utility/university cooperation 

    Egbert, Robert I; Thomann, Gary C.; Henry, Douglas J.; Loux, R. C. (IEEE, 1989-05-01)
  • Link availability and its effects on the capacity of mobile ad hoc wireless networks - an analytical approach 

    Sharma, R.; Bhagavathula, Ravi; Namuduri, Kameswara; Pendse, Ravi (IEEE, 2006-11-14)
    Mobile ad hoc wireless networks are expected to play a very important role in the future. Therefore, extensive research has been conducted to understand and analyze these networks under various conditions of strategic ...
  • Link stability based enhancements to OLSR (LS-OLSR) 

    Obilisetty, S.; Jasti, Amarnath; Pendse, Ravi (IEEE, 2005-09-25)
    The proliferation of Ad-Hoc network based applications have greatly increased the need for robust proactive routing protocol like Optimized Link State Routing (OLSR). OLSR uses Multipoint Relays (MPRs) for controlled ...
  • LRU-FP algorithm with dual threshold 

    Pendse, Ravi; Mendu, S. (International Society for Computers and Their Applications, 1998-11)
  • Maximizing data preservation in intermittently connected sensor networks 

    Hou, Xiang; Sumpter, Zane; Burson, Lucas; Xue, Xinyu; Tang, Bin (IEEE, 2012-10)
    In intermittently connected sensor networks, wherein sensor nodes do not always have connected paths to the base station, preserving generated data inside the network is a new and challenging problem. We propose to preserve ...
  • Measurement of Gaussian beam diameter using ronchi rulings 

    Karim, M.A. (IEEE, 1985-05-09)
    The analytical and experimental scope of the generalised Ronchi ruling method for the measurement of Gaussian laser beam diameter is presented. The effects of the ruling periodicity, ruling duty cycle, ruling type and the ...
  • MMSE relaying strategies under jamming, channel uncertainty, node geometry, and power constraint 

    Lee, Kanghee; Kwon, Hyuck M.; Yang, Jie; Sawan, M. Edwin; Park, Hyuncheo; Lee, Yong H. (IEEE, 2013)
    An amplify-and-forward (AF) relay network has been studied extensively, but a closed form of an optimal AF relaying matrix is not available yet for the distributed AF relay network with the destination power constraint ...
  • MMSE relaying strategy for two-way amplify-and-forward wireless networks 

    Lee, Kanghee; Kwon, Hyuck M.; Yang, Jie; Sawan, M. Edwin; Park, Hyuncheol; Lee, Yong H. (IEEE, 2013)
    This paper studies amplify-and-forward (AF) relay strategies for two-way wireless relay networks consisting of two sources with a single antenna and multiple relays with a single antenna. The closed form of relay amplifying ...
  • MMSE-Based amplifying relay matrix for noncooperative AF wireless relay network under power constraints 

    Lee, Kanghee; Kwon, Hyuck M.; Wang, Zuojun (IEEE, 2011-06-28)
    This paper derives analytically an optimum amplifying relay matrix using the minimum mean square error (MMSE) criteria for a noncooperative amplify-and-forward (AF) distributed relay network. Global and local power constraints ...
  • MMSE-based optimal design of full-duplex relay system 

    Lee, Kanghee; Kwon, Hyuck M.; Jo, Mansik; Park, Hyuncheol; Lee, Yong H. (IEEE, 2012-09)
    This paper studies minimum mean square error (MMSE)-based full-duplex relay processing matrices and source/destination beamforming vectors under perfect channel state information by imposing constraints on the transmit ...
  • Mobile IP and virtual private networks 

    Bhagavathula, Ravi; Thanthry, Nagaraja; Pendse, Ravi (IEEE, 2002)
    With a growing number of portable computing devices like laptops and personal digital assistants (PDA), the need for seamless connectivity to the global Internet is driving the acceptance of different mobility solutions. ...
  • Mobile MOGRE VPN 

    Bhagavathula, Ravi; Thanthry, Nagaraja; Immich, P.; Pendse, Ravi (2002-09)
    While the usage of IPSec based VPNs for the construction and maintenance of a mobile VPN is feasible, issues related to its scalability in terms of required resources and QoS provisioning limit its practical deployment. ...
  • Mobile relay amplifying matrix design of the cooperative distributed MMSE relaying for AF wireless mobile networks 

    Lee, Kanghee; Kwon, Hyuck M.; Ibdah, Yazan; Xiong, Wenhao; Sawan, M. Edwin (IEEE, 2012-05)
    This paper presents an optimal amplify-and-forward (AF) relay scheme for a multiple-input-multiple-output (MIMO) system consisting of M-mobile sources, M-mobile destinations, and N-cooperative distributed mobile relay ...
  • Mobility and layer 2 tunnels 

    Bhagavathula, Ravi; Best, Patricia K.; Pendse, Ravi (2006)
    An increase in the size and requirements of a mobile workforce is driving the development of better mobility oriented services in terms of both content and connectivity. Even though traditional Mobile IP has been the ...
  • Mobility: a VPN perspective [mobile computing] 

    Bhagavathula, Ravi; Thanthry, Nagaraja; Wanyen, Lee; Pendse, Ravi (IEEE, 2002-08-04)
    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 ...
  • Most distant used (MDU) block replacement algorithm and its derivatives 

    Pendse, Ravi; Safdar, A.Q.S. (International Society for Computers and Their Applications, 1999-11)