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2010

Beamforming for heterogeneously equipped nodes in wireless ad hoc networks

8 years 6 months ago
Beamforming for heterogeneously equipped nodes in wireless ad hoc networks
It has long been known that adaptive beamforming has the potential to enhance the performance of wireless ad hoc networks significantly. However, due to the decentralized nature of such infrastructure-less networks, it is not straight forward to fully realize the potential performance gains of beamforming in a realistic manner. To this end we devise a fully distributed cross-layer concept, comprising physical and MAC layer functionalities. Our proposed Channel Information Exchange (CIE)-MAC protocol enables to benefit from beamforming capabilities, such as interference management by means of nulling, thus increasing the spatial reuse. Moreover, it can handle heterogeneous scenarios with nodes which are equipped with different numbers of antennas, including the extreme case of single antenna nodes. The novel CIE-MAC protocol succeeds to avoid common drawbacks of existing protocols, like deafness and hidden terminal problems, and it is designed to operate in realistic fading environments...
Ulrike Korger, Manuel Wocheslander, Christian Hart
Added 15 Feb 2011
Updated 15 Feb 2011
Type Journal
Year 2010
Where WD
Authors Ulrike Korger, Manuel Wocheslander, Christian Hartmann, Katsutoshi Kusume, Joerg Widmer
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