Interferer Nulling Based on Neighborhood Communication Patterns

  • Robert Vilzmann
  • Jörg Widmer
  • Imad Aad
  • Christian Hartmann
Part of the Signals and Communication Technology book series (SCT)

Beamforming using smart antennas can improve the performance of wireless devices. Beyond the increase of antenna gain in a desired direction, beam patterns can also be modified to have very small gains in the direction of interference and noise sources (nulling). In this paper we propose nulling algorithms based on the long-term communication patterns and routing tables in ad hoc networks. Simulation results show that this approach considerably improves spatial reuse and increases SNR, without necessarily increasing path length.


Antenna Element Directional Antenna Beam Pattern Probability Mass Function Antenna Gain 
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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Robert Vilzmann
    • 1
  • Jörg Widmer
    • 2
  • Imad Aad
    • 2
  • Christian Hartmann
    • 1
  1. 1.Institute of Communication NetworksTechnische Universität MünchenGermany
  2. 2.DoCoMo Euro-LabsFuture Networking LabGermany

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