Self-reconfigurable implementation for a switched beam smart antenna

•Self-reconfigurable system for switched beam smart antenna.•The system can dynamically alter the beam pattern and the fixed-point format.•Interrupt-driven run-time reconfiguration for arithmetic overflow occurrences.•A dynamic management framework is introduced for swapping hardware configurations....

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Bibliographic Details
Published in:Microprocessors and microsystems 2018-07, Vol.60, p.1-14
Main Authors: Llamocca, Daniel, Aloi, Daniel N.
Format: Article
Language:English
Subjects:
Adaptive beamforming
Algorithms
Antennas
Beamforming
Dynamic partial reconfiguration
Embedded systems
Fixed point arithmetic
FPGA
Hardware
PSoCs
Reconfiguration
Run time (computers)
Signal processing
Smart antennas
Smart materials
System on chip
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Summary:•Self-reconfigurable system for switched beam smart antenna.•The system can dynamically alter the beam pattern and the fixed-point format.•Interrupt-driven run-time reconfiguration for arithmetic overflow occurrences.•A dynamic management framework is introduced for swapping hardware configurations. We present a self-reconfigurable embedded system for a switched beam smart antenna that can steer the beam pattern into a desired direction, handle arithmetic overflow, and respond to user-specified constraints on accuracy and resources. The main component (adaptive beamforming) is implemented as a fully customized hardware in fixed-point arithmetic. By varying the numerical formats and desired beam patterns, we generate a set of hardware configurations, which can then be selected at run-time via a dynamic manager implemented in software. The self-reconfigurable embedded system is implemented and tested on a Programmable System-on-Chip (PSoC). Results are presented in terms of resources, accuracy, and run-time hardware adaptation. This work illustrates the benefits of run-time reconfiguration technology on PSoCs for the implementation of switched-beam smart antennas.
ISSN:0141-9331
1872-9436
DOI:10.1016/j.micpro.2018.03.009