Recent Advances in Array Processing for Wireless Applications

Dear Colleagues,

Array processing has gained increased relevance in recent years as a powerful framework capable of giving solution to promising and growing applications in wireless communications. Electromagnetic imaging, wireless energy (and information) transfer, near field focusing, RFID, MIMO, the Internet of Things, among others, make use of the capabilities of array processing techniques to provide more flexibility and control to the involved radiating systems.

Many array processing techniques have been developed long time ago. They are a mature scientific field that has received attention for many years. However, there are still many fundamental theoretical and technical challenges for practical applications, as well as novel methodologies and algorithms capable of achieving greater performance from an array. Optimization, machine learning, bioinspired algorithms, compressive sensing, etc., together with analytical analysis, traditional numerical approaches, antenna array design, digital signal processing, and new hybrid techniques, are leading to new array configurations, new capabilities, or new system implementations.

There is a long way ahead in research on arrays for wireless applications.

The purpose of this Special Issue is to provide an overview of the state of the art in array processing and its relevance in wireless applications, new lines of research, new trends and frontiers. Review papers on this topic are also welcome. Topics of interest for this Special Issue include, but are not limited to:

• General array processing
• Phased arrays
• Array synthesis and Near Field Focusing
• Array architectures and manufacturing
• MIMO array and massive array
• Adaptive beamforming
• Sparse arrays
• Array calibration and mutual coupling effects
• Arrays for wireless communications and 5G
• Wireless applications based on arrays: radar, imaging, RFID, localization, IoT
• Arrays for acoustic and ultrasonic applications
• Array applications to wireless energy transfer
• Other array structures: reflectarrays, transmittarrays, etc.

Prof. Dr. Fernando Las-Heras Andrés
Prof. Dr. Rafael González-Ayestarán
Guest Editors

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