According to much of the digital pre-distortion (DPD) promotional material, its performance is based on static quantitative data. Typically, this material shows a DPD spectrum and indicates numbers next to channel leakage ratio (ACLR). Although this approach covers basic needs, it does not capture many of the challenges, risks and trade-offs that arise in real-world implementations.
The rapid transition to 5G introduces a plethora of new challenges and scenarios that algorithm developers and equipment vendors need to pay more attention to. The basis of static performance must be the ability to maintain performance and stability in a complex environment where many elements are in a state of flux.
The post ADI Article: How to Make a Digital Pre-Distortion Solution Practical and Relevant first appeared on RCR Wireless News.