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On downlink beamforming with small cells in wireless heterogeneous systems

journal contribution
posted on 2015-08-01, 00:00 authored by Jinho ChoiJinho Choi
In this letter, we study downlink beamforming for wireless heterogeneous networks with two groups of users. The users in one group (group 1) are supported by the smallcell base station (SBS) as well as the macrocell base station (MBS), while the users in the other group (group 2) are supported by the MBS only. The MBS is equipped with an antenna array for downlink beamforming. We formulate a convex optimization problem, which can be solved by semidefinite programming (SDP) relaxation, for downlink beamforming that takes advantage of the presence of the SBS for group 1, but also takes into account the interfering signal from the SBS for group 2.

History

Journal

IEEE wireless communications letters

Volume

4

Pagination

425-428

Location

Piscataway, N.J.

ISSN

2162-2337

eISSN

2162-2345

Language

eng

Publication classification

C Journal article, C1.1 Refereed article in a scholarly journal

Copyright notice

2015, IEEE

Issue

4

Publisher

IEEE