Pinching antennas reduce interference to boost data rates in networks
Characterizing Multi-Cell Pinching-Antenna Transmission: Revealing the Other Side of the Coin
Information Theory
Summary
Connecting to your phone tower usually means the tower has to send out strong signals, which can cause a lot of noise or interference for others nearby. This paper shows that a special kind of antenna called a pinching antenna helps towers talk quietly, reducing that interference. Even if your direct connection doesn't get better, you can still get faster data because there's less noise from other towers. The researchers studied this effect using math and simulations to confirm it.
What this means in practice
- •For wireless network operators: Design cellular networks that use pinching antennas to reduce interference and improve user data rates without increasing signal strength.
- •For telecommunications hardware engineers: Develop base station equipment that implements fractional power control with pinching antennas to minimize transmit power and interference.$Commercial implications: Enables creation of more efficient base station products that appeal to operators for better network performance and lower energy cost.
Authors
Zhiguo Ding
Abstract
Using pinching antennas to enhance a user's connection to its own base station (BS) is intuitive and has been well investigated in the literature. This letter focuses on a less intuitive advantage of pinching antennas from the interference-suppression perspective. In particular, using pinching antennas ensures that all BSs serve their users with low transmit power, i.e., BSs can ``whisper", rather than ``shout", to their users. As a result, by experiencing less interference, a user's data rate can still be improved with pinching antennas, even if its link quality to its own BS remains unchanged. A stochastic geometric study is carried out in the letter, where BSs employ fractional power control. Analytical and numerical results are presented to reveal the significant impact of this interference-suppression capability offered by pinching antennas.