Now showing items 1-6 of 6

    • Cooperative positioning in wireless networks 

      Gholami, M. R.; Keskin, M. F.; Gezici, Sinan; Jansson, M. (John Wiley & Sons, 2016)
      In this article, we study cooperative positioning in wireless networks in which target nodes at unknown locations locally collaborate with each other to find their locations. We review different models available for ...
    • A distributed positioning algorithm for cooperative active and passive sensors 

      Gholami, M.R.; Gezici, S.; Rydström, M.; Ström, E.G. (2010)
      The problem of positioning a target node is studied for wireless sensor networks with cooperative active and passive sensors. Two-way time-of-arrival and time-difference-of-arrival measurements made by both active and ...
    • Enhanced position estimation via node cooperation 

      Sahinoglu, Z.; Gezici, S. (2010)
      Two-way time-of-arrival (TW-ToA) is a widely used ranging protocol that can provide the distance between two devices without time synchronization. One drawback of the TW-ToA is poor positioning accuracy in the absence of ...
    • Hybrid TW-TOA/TDOA positioning algorithms for cooperative wireless networks 

      Gholami, M.R.; Gezici, S.; Ström, E.G.; Rydström, M. (2011)
      The problem of positioning an unknown target is studied for a cooperative wireless sensor network using hybrid two-way time-of-arrival and time-difference-of-arrival measurements. A maximum likelihood estimator (MLE) can ...
    • Improved position estimation using hybrid TW-TOA and TDOA in cooperative networks 

      Gholami, M. R.; Gezici, S.; Ström, E. G. (Institute of Electrical and Electronics Engineers, 2012-04-13)
      This paper addresses the problem of positioning multiple target nodes in a cooperative wireless sensor network in the presence of unknown turn-around times. In this type of cooperative networks, two different reference ...
    • Positioning algorithms for cooperative networks in the presence of an unknown turn-around time 

      Gholami, M.R.; Gezici, S.; Ström, E.G.; Rydström, M. (2011)
      This paper addresses the problem of single node positioning in cooperative network using hybrid two-way time-of-arrival and time-difference-of-arrival where, the turn-around time at the target node is unknown. Considering ...