| 报告人 |
刘子龙 |
内容简介 |
The upcoming 6G systems must support ubiquitous & massive data services over high-mobility channels (e.g., moving speed at 500 km/h or higher) for various applications such as Satellite IoT and massive V2X access. This motivates us to study the integration of affine frequency division multiplexing (AFDM)-empowered sparse code multiple access (SCMA) system, referred to as AFDM-SCMA, by fully exploiting the complementary strengths of AFDM and SCMA in high-mobility communications and massive machine-type communications, respectively. We propose a novel iterative detection and decoding scheme with linear minimum mean square error (LMMSE) estimator based on orthogonal approximate message passing (OAMP) principles. We show that the proposed receiver can significantly enhance the error rate performance while reducing the detection complexity. |
