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The findings and conclusions in this document are those of the authors, who are responsible for its contents; the findings and conclusions do not necessarily represent the views of AHRQ. Therefore, no statement in this report should be construed as an official position of AHRQ or of the U.S. Department of Health and Human Services. The information in this(More)
Recommended by Wolfgang Utschick Multihop wireless networks will play an important role in future communication networks. Beamforming antennas have shown great potential to improve the connectivity in these networks; however only heuristic approaches exist to assess the benefits of this technology. Using the popular " keyhole " antenna model, we formulate a(More)
Adhoc networks will play an important role in future access networks. Previous studies have shown, that the connectivity of such networks can be notably increased by employing directional antennas. Heuristic methods to control the direction of these antennas based on local information exist, however it remains unclear, how well they perform. This work tries(More)
The findings and conclusions in this document are those of the author(s), who are responsible for its contents; the findings and conclusions do not necessarily represent the views of AHRQ. Therefore, no statement in this report should be construed as an official position of AHRQ or of the U.S. Department of Health and Human Services. The information in this(More)
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