Now showing items 1-6 of 6

  • 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 ...
  • Noncooperative AF schemes for wireless mobile networks under jamming environment 

    Ibdah, Yazan; Kwon, Hyuck M.; Ding, Yanwu; Lee, Kanghee (IEEE, 2011-11-07)
    Communication between mobile relays has recently gained much attention. In this paper, a novel optimal diagonal relay amplifying matrix based on the minimum mean square error (MMSE) criterion is proposed for mobile nodes. ...
  • Observer based, dead-beat controller with reduced sensitivity 

    Raptis, J.; Sawan, M. Edwin (IEEE, 1988-06-15)
    In this paper, a method is proposed for the design of linear, multivariable, discrete-time controllers with the following characteristics: 1. Constant-gain, minimal order observer - based control laws, 2. n-step, dead beat ...
  • Optimum clustered pilot sequence for OFDM systems under rapidly time-varying channel 

    Kim, Kwanghoon; Park, Hyuncheol; Kwon, Hyuck M. (IEEE, 2012-05)
    As channel time-variation increases, orthogonality among subcarriers in an orthogonal frequency division multiplexing (OFDM) symbol can be destroyed because of the relatively long symbol period, whereupon intercarrier ...
  • Two-level MMSE relay strategy for an AF wireless relay network 

    Lee, Kanghee; Kwon, Hyuck M.; Xiong, Wenhao; Kim, Hyunggi; Feng, Shuang; Park, Hyuncheol; Lee, Yong H. (IEEE, 2012-10-01)
    This paper presents optimal amplify-and-forward (AF) relay amplifying matrices based on the minimum mean square error (MMSE) criterion for a cooperative AF wireless relay network consisting of a one-source-one-destination ...