Ding Shi

Title: Ding Shi and Skywave Massive MIMO-OFDM Channel Modeling.

Introduction

Ding Shi is an inventor based in Jiangsu, China, and is associated with Southeast University. His patent work addresses wireless communications, particularly channel modeling and channel information acquisition for skywave massive MIMO-OFDM systems.

Latest Patents

The provided information lists one patent for Ding Shi: “Skywave Massive MIMO-OFDM Triple Beam-Based Channel Modeling and Channel Information Acquisition.” The disclosure presents a statistical channel model in which a spatial-frequency-time domain channel vector is represented using a triple beam matrix and a triple beam domain channel vector. The matrix is formed from sampled steering vectors associated with selected direction-cosine, time-delay, and Doppler-frequency points.

Using statistical channel information, a base station can group users and allocate pilot sequences. It then estimates the triple beam domain channel vector from received pilot signals and derives channel vectors for pilot and data bands. The described approach aims to improve channel modeling accuracy while reducing pilot overhead and computational complexity.

Career Highlights

Ding Shi’s listed patent reflects work on signal processing and wireless channel estimation. The disclosed methods connect statistical channel modeling with practical pilot allocation and channel acquisition in massive MIMO-OFDM systems.

Collaborations

The supplied information identifies Southeast University as Ding Shi’s company or institutional affiliation and names Linfeng Song as a coworker. It does not specify their individual contributions to the patent.

Conclusion

Ding Shi’s listed invention focuses on triple beam-based channel modeling and acquisition, with the stated goal of making wireless channel estimation more accurate and efficient.