| Paper ID | SPCOM-5.6 |
| Paper Title |
LOW-LATENCY POLAR DECODER USING OVERLAPPED SCL PROCESSING |
| Authors |
Dongyun Kam, Pohang University of Science and Technology, South Korea; Byeong Yong Kong, Kongju National University, South Korea; Youngjoo Lee, Pohang University of Science and Technology, South Korea |
| Session | SPCOM-5: Detection and Decoding |
| Location | Gather.Town |
| Session Time: | Friday, 11 June, 11:30 - 12:15 |
| Presentation Time: | Friday, 11 June, 11:30 - 12:15 |
| Presentation |
Poster
|
| Topic |
Signal Processing for Communications and Networking: [SPC-HIGH] High frequency and wideband communication |
| IEEE Xplore Open Preview |
Click here to view in IEEE Xplore |
| Virtual Presentation |
Click here to watch in the Virtual Conference |
| Abstract |
In this paper, we present a novel scheduling method that reduces the latency of polar decoders significantly. Unlike the prior pruning-based successive cancellation list (SCL) decoding that suffers from a number of idle cycles, the proposed overlapped SCL scheme immediately begins node operations without waiting for the list to be sorted, being exempt from such unfavorable cycles. All possible candidates for the next node operations are precomputed in parallel with the pruning operations, and are readily selected to minimize the latency. For the 5G New Radio systems, the proposed method shortens the decoding latency of the state-of-the-art approaches by up to 22% without degrading the error-correcting performance. |
