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  •   University of Thessaly Institutional Repository
  • Επιστημονικές Δημοσιεύσεις Μελών ΠΘ (ΕΔΠΘ)
  • Δημοσιεύσεις σε περιοδικά, συνέδρια, κεφάλαια βιβλίων κλπ.
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  •   University of Thessaly Institutional Repository
  • Επιστημονικές Δημοσιεύσεις Μελών ΠΘ (ΕΔΠΘ)
  • Δημοσιεύσεις σε περιοδικά, συνέδρια, κεφάλαια βιβλίων κλπ.
  • View Item
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Joint beamforming and channel selection for multicast IEEE 802.11n WLANs

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Author
Papathanasiou, C.; Tassiulas, L.
Date
2008
DOI
10.1109/WIOPT.2008.4586085
Keyword
Ad hoc networks
Beamforming
Frequency bands
Local area networks
Multicasting
Optimization
Parallel algorithms
Standards
Sulfate minerals
Wireless local area networks (WLAN)
Wireless networks
Access points
Channel selection
Data rates
Distributed algorithms
Fair sharing
High bit rate
IEEE 802.11
International symposium
Joint beamforming
Multicast
Multicast groups
Multicast transmissions
Performance degradation
Rapid growth
Transmit beamforming
Wireless devices
Quality of service
Metadata display
Abstract
Multicast transmission over WLANs is becoming a popular application. IEEE 802.11n technology is developed due to the ever increasing demand for higher data rate and Quality of Service (QoS). However, there is an unmanaged and rapid growth of wireless devices in unlicensed frequency bands. WLANs experience significant interference from near-by environment which lead to significant performance degradation. The impetus of the present study is to describe a novel distributed algorithm that will allow interfering Access Points (APs) to select appropriately the channel band that will experience minimal interference. Therefore, a fair share of available spectrum is achieved. We investigate the IEEE 802.11n WLAN where a large number of clients attempt the same high bit rate from the single AP. We formulate the problem of transmit beamforming to a multicast group and minimize total emitted power adopting a QoS criterion.
URI
http://hdl.handle.net/11615/31936
Collections
  • Δημοσιεύσεις σε περιοδικά, συνέδρια, κεφάλαια βιβλίων κλπ. [19705]

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