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Optimum Discrete Max-Min Style Broadcast Beamforming Design
Date
2014-04-25
Author
Demir, Özlem Tuğfe
Tuncer, Temel Engin
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In this paper, max-mm style transmit beamformer design for single group multicast (broadcast) scenario is considered. The phase and amplitude values of beamformer vector coefficients are selected from finite discrete sets. With the help of integer variables, original optimization problem is converted to a linear form appropriate for mixed integer linear programming. The solution is always feasible as long as the total power is above a certain value. Branch and cut strategy guarantees the optimum solution. Proposed approach is very effective and with moderate number of bits, a performance closed to optimum continuous beamformer can be obtained.
Subject Keywords
Transmit beamformer
,
Max-mm style beamformer
,
Discrete beamformer
,
Mixed integer linear programming
URI
https://hdl.handle.net/11511/53386
Conference Name
22nd IEEE Signal Processing and Communications Applications Conference (SIU)
Collections
Department of Electrical and Electronics Engineering, Conference / Seminar
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In this paper, transmit beamformer design problem is considered for single group multicast case. This problem is treated in discrete phase and amplitude and converted to a linear form. The solution of this linear optimization problem is always feasible as long as the total transmit power is above a certain value. The proposed method is guaranteed to find the optimum solution. This new approach is used to design discrete phase-only (DPOB) and discrete phase-amplitude beamformers (DPAB). It is shown that the ...
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Ö. T. Demir and T. E. Tuncer, “Optimum Discrete Max-Min Style Broadcast Beamforming Design,” presented at the 22nd IEEE Signal Processing and Communications Applications Conference (SIU), Karadeniz Teknik Univ, Trabzon, TURKEY, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53386.