Abstract / truncated to 115 words (read the full abstract)

In multi-user (MU) downlink beamforming, a high spectral efficiency along with a low transmit power is achieved by separating multiple users in space rather than in time or frequency using spatially selective transmit beams. For streaming media applications, multi-group multicast (MGM) downlink beamforming is a promising approach to exploit the broadcasting property of the wireless medium to transmit the same information to a group of users. To limit inter-group interference, the individual streams intended for different multicast groups are spatially separated using MGM downlink beamforming. Spatially selective downlink beamforming requires the employment of an array of multiple antennas at the base station (BS). The hardware costs associated with the use of multiple antennas may be ... toggle 10 keywords

beamforming relay networks multicasting energy efficiency spectral efficiency convex optimization second-order cone programming mixed-integer programming asynchronous relay networks adaptive decoding delays

Information

Author
Bornhorst, Nils
Institution
Technische Universit├Ąt Darmstadt
Supervisors
Publication Year
2015
Upload Date
July 30, 2015

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