Perturbation-Based Distributed Beamforming for Wireless Relay Networks

@article{Fertl2008PerturbationBasedDB,
  title={Perturbation-Based Distributed Beamforming for Wireless Relay Networks},
  author={Peter Fertl and Ari Hottinen and Gerald Matz},
  journal={IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference},
  year={2008},
  pages={1-5}
}
This paper deals with distributed beamforming techniques for wireless networks with half-duplex amplify-and- forward relays. Existing schemes optimize the beamforming weights based on the assumption that channel state information (CSI) is available at the relays. We propose to use adaptive beamforming based on deterministic perturbations and limited feedback (1-bit) from the destination to the relays in order to avoid CSI at the relays. Two scalable perturbation schemes are considered and… CONTINUE READING
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