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Radio Resource Allocation in Spatial TDMA Multihop Networks with Advanced Antennas
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. (Radio Communication Systems)
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. (Radio Communication Systems)ORCID iD: 0000-0003-4986-6123
2007 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Advanced Antenna Systems (AAS) have the potential of significantly improving the performance in Wireless Multihop Networks. Critical for achieving performance gains is the proper design of radio resource management (RRM) schemes. In this paper RRM for networks utilizing Beam-Steering Circular Arrays in combination with Spatial Time Division Multiple Access  is studied. A heuristic, low complexity, RRM scheme based on the algorithm in [1] is proposed. Its network throughput performance is compared to the (near) optimum performance of the convex optimization method proposed in [2] extended to be utilized with  AAS. Both a constant transmission power scheme as well as SINR balancing power control are studied for various antenna beamwidths. The proposed AAS scheme is shown to improve the throughput performance significantly (up to 5 times in our experiments) compared to systems with omnidirectional antennas. Our heuristic scheme exhibits a throughput performance that in most cases lies within 10-15% of the one obtained by the convex optimization method.

Place, publisher, year, edition, pages
2007.
National Category
Computer and Information Science
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-30601OAI: oai:DiVA.org:kth-30601DiVA: diva2:400929
Conference
Wireless Rural and Emergency Communications WRECOM 2007
Note
QC 20111111Available from: 2011-02-28 Created: 2011-02-28 Last updated: 2011-11-11Bibliographically approved

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Zander, Jens

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