Title
Multiplay Multiarmed Bandit Algorithm Based Sensing of Noncontiguous Wideband Spectrum for AIoT Networks
Abstract
To bring large-scale artificial intelligence of things (AIoT) to reality, wireless networks need intelligence to identify resources in a limited shared noncontiguous spectrum. In this article, we address this challenge via a sub-Nyquist sampling-based wideband spectrum analyzer deployed in the AIoT gateway. The noncontiguous nature demands learning the channel occupancy. However, the identification of channel status can fail when the number of busy channels in a selected subset is higher than the number of analog-to-digital converters, <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$K$</tex-math></inline-formula> . We model this subset selection problem as multiplay multiarmed bandit. First, we demonstrate the learnability of such a problem via a learning algorithm with a subset size of <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$K$</tex-math></inline-formula> (no sensing failure). For wideband sparse spectrum, we extend this algorithm using a novel subset size estimation approach to identify the optimal subset that gives the best possible throughput and could have a size potentially larger than <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$K$</tex-math></inline-formula> . These algorithms are mapped on the system-on-chip, and in-depth performance analysis demonstrates their superiority over state-of-the-art approaches.
Year
DOI
Venue
2022
10.1109/TII.2021.3105489
IEEE Transactions on Industrial Informatics
Keywords
DocType
Volume
Multiarmed bandit (MAB),no-contiguous wideband spectrum analyzer (WSA),sub-Nyquist sampling (SNS),Zynq system-on-chip (SoC)
Journal
18
Issue
ISSN
Citations 
5
1551-3203
1
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Himani Joshi123.07
Shubhrajit Santra210.34
Sumit Jagdish Darak33616.39
Manjesh Kumar Hanawal49921.89
S. V. Sai Santosh510.34