Abstract
In this paper, we propose a low complexity precoding method that is based on orthogonal vector (OV) concept in order to mitigate power amplifier (PA) loadpulling effect in a highly integrated transmitter (Tx) antenna array. The precoder is designed by summing an excitation vector that is orthogonal to the channel state information (CSI) to the conventional zeroforcing (ZF) precoder. In this way the equal constant power (CP) signals can be synthesized and injected into all PAs at each time instant, in the meantime the orthogonality ensures that the additive vector has no impact on the signal at the intended receiver (Rx). The simulations have been performed, and it shows that the proposed precoder can reduce the loadpulling effect with a low complexity algorithm.
| Original language | English |
|---|---|
| Title of host publication | 54th European Microwave Conference (EuMC) |
| Publisher | IEEE |
| Pages | 1106-1109 |
| Number of pages | 4 |
| ISBN (Electronic) | 9782874870774 |
| DOIs | |
| Publication status | Published - 31 Oct 2024 |
| Event | 54th European Microwave Conference 2024 - Paris Expo Porte de Versailles, Paris, France Duration: 22 Sept 2024 → 27 Sept 2024 Conference number: 54 https://www.eumweek.com/ |
Conference
| Conference | 54th European Microwave Conference 2024 |
|---|---|
| Abbreviated title | EuMC 2024 |
| Country/Territory | France |
| City | Paris |
| Period | 22/09/24 → 27/09/24 |
| Internet address |
Keywords
- highly integrated array
- loadpulling effect
- orthogonal vector (OV)
- power amplifier (PA)
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Instrumentation