Now showing items 1-3 of 3

    • Levy walk evolution for global optimization 

      Urfaliog̃lu O.; Çetin, A.E.; Kuruog̃lu, E.E. (2008)
      A novel evolutionary global optimization approach based on adaptive covariance estimation is proposed. The proposed method samples from a multivariate Levy Skew Alpha-Stable distribution with the estimated covariance matrix ...
    • 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 ...
    • Range based sensor node localization in the presence of unknown clock skews 

      Gholami, M.R.; Gezici, S.; Strom, E.G. (2013)
      We deal with the positioning problem based on two-way time-of-arrival (TW-TOA) measurements in asynchronous wireless sensor networks. The optimal estimator for this problem poses a difficult global optimization problem. ...