articleIEEE Wireless Communications LettersFeb 20, 2025Closed access

Rate Maximization for Downlink Pinching-Antenna Systems

YXYanqing XuZDZhiguo DingGKGeorge K. Karagiannidis

Chinese University of Hong Kong, Shenzhen · Khalifa University of Science and Technology · +1 more institution

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Abstract

In this letter, we consider a new type of flexible-antenna system, termed pinching-antenna, where multiple low-cost pinching antennas, realized by activating small dielectric particles on a dielectric waveguide, are jointly used to serve a single-antenna user. Our goal is to maximize the downlink transmission rate by optimizing the locations of the pinching antennas. However, these locations affect both the path losses and the phase shifts of the user’s effective channel gain, making the problem challenging to solve. To address this challenge and solve the problem in a low complexity manner, a relaxed optimization problem is developed that minimizes the impact of path loss while ensuring that the received…

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Topics & keywords

Topics
Keywords
  • Telecommunications link
  • Maximization
  • Computer science
  • Antenna (radio)
  • Directional antenna
  • Mathematical optimization
  • Computer network
  • Telecommunications
UN Sustainable Development Goals
  • Affordable and clean energy
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