Now showing items 1-14 of 14

    • Adverse wireless communication environment impacts on AF wireless relay networks 

      Lee, Kanghee; Kwon, Hyuck M.; Kim, Deawon; Shim, Yeonggyu; Park, Hyuncheol; Lee, Yong H.; Hyun, Inha (IEEE, 2013)
      This paper proposes amplify-and-forward (AF) relay matrices for a one-source-one-destination pair and cooperative distributed N relay nodes under three adverse wireless relay communication environments: (1) broadband noise ...
    • AF MIMO wireless relay networks under received power constraint 

      Lee, Kanghee; Kwon, Hyuck M.; Kim, Hyunggi; Sawan, M. Edwin; Park, Hyuncheol; Lee, Yong H. (IEEE, 2012-09)
      This paper considers an amplify-and-forward (AF) relay scheme for M-source-M-destination pairs and N relay nodes. Cooperative minimum mean square error (MMSE) strategies for wireless relay networks under both a jamming ...
    • AF wireless relay network analysis under receiver power constraint 

      Lee, Kanghee; Kwon, Hyuck M.; Kim, Hyunggi; Lee, Sangku; Shim, Yeonggyu; Park, Hyuncheol; Lee, Yong H. (IEEE, 2013)
      This paper presents both cooperative and noncooperative amplify-and-forward (AF) relay networks consisting of a one-source-one-destination pair and N-relays under receiver power constraint (RPC) at the destination. The ...
    • Centralized two-way AF MIMO multiple dispersed relay network 

      Lee, Kanghee; Yang, Jie; Kwon, Hyuck M.; Park, Hyuncheol; Lee, Yong H. (IEEE, 2015-05-12)
      This paper considers a two-way amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay network consisting of two sources (each with multiple antennas) and multiple physically dispersed single-antenna relays. ...
    • Closed form of optimum cooperative distributed relay amplifying matrix 

      Lee, Kanghee; Yang, Jie; Kwon, Hyuck M.; Park, Hyuncheol; Lee, Yong H. (IEEE, 2014-05)
      This paper presents a closed form of an optimal cooperative amplify-and-forward (AF) relay amplifying matrix for a distributed relay network of M-source-M-destination pairs and N relays, called a cooperative distributed ...
    • Cooperative AF MIMO wireless relay networks under relay power constraint 

      Lee, Kanghee; Kwon, Hyuck M.; Kim, Hyunggi; Park, Hyuncheol; Lee, Yong H. (IEEE, 2012-11)
      This paper presents an amplify-and-forward (AF) relay scheme for M-source-M-destination pairs and N relay nodes. Cooperative minimum mean square error (MMSE) and zero-forcing (ZF) strategies for wireless relay networks ...
    • Distributed AF mobile relay networks in adverse wireless communication environments 

      Lee, Kanghee; Kwon, Hyuck M.; Yang, Jie; Sawan, M. Edwin; Park, Hyuncheol; Lee, Yong H. (IEEE, 2013)
      This paper addresses a more practical relay network consisting of a mobile source, multiple distributed mobile amplify-and-forward (AF) relays, and a mobile destination node. It considers an appropriate channel model between ...
    • MMSE relaying strategies under jamming, channel uncertainty, node geometry, and power constraint 

      Lee, Kanghee; Kwon, Hyuck M.; Yang, Jie; Sawan, M. Edwin; Park, Hyuncheol; 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 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 ...
    • Optimal amplify-and-forward precode and relay amplifying matrices 

      Kim, Hyunggi; Kwon, Hyuck M.; Lee, Kanghee; Shim, Yeonggyu; Park, Hyuncheol; Lee, Yong H. (IEEE, 2013)
      A cooperative amplify-and-forward (AF) wireless relay scheme consisting of M sources, N relays, and L destinations all equipped with a single antenna is studied in this paper. The main objective is to design jointly and ...
    • Power allocation for AF relaying network under channel phase misalignment 

      Lee, Kanghee; Kwon, Hyuck M.; Yang, Jie; Sawan, M. Edwin; Park, Hyuncheol; Lee, Yong H. (IEEE, 2013)
      This paper studies both cooperative and noncooperative amplify-and-forward (AF) wireless relay strategies with power constraints at the source and at the relays. The main objective is to design jointly and iteratively the ...
    • Selection of amplify-and-forward mobile relay under cascaded Rayleigh fading 

      Lee, Kanghee; Kwon, Hyuck M.; Sawan, M. Edwin; Shim, Yeonggyu; Park, Hyuncheol; Lee, Yong H. (IEEE, 2013)
      This paper assumes a practical channel model, called a cascaded Rayleigh fading channel, for a noncooperative distributed mobile relay network, which consists of one mobile source and one mobile destination, and multiple ...
    • 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 ...