Keun-chul Hwang

Title: **Innovative Contributions of Keun-chul Hwang in Wireless Communication**

Introduction

Keun-chul Hwang is a notable inventor based in Kwangju, South Korea, recognized for his significant contributions in the field of wireless communication. With two patents to his name, he has played a pivotal role in enhancing communication technologies, focusing on antenna diversity methods and feedback systems.

Latest Patents

Hwang's latest inventions include:

1. **Closed loop transmit diversity method and apparatus using complex basis vector sets for antenna selection**

This patent details a transmission antenna diversity method aimed at improving efficiency in a mobile communication system. It describes a process where channel information is measured from multiple antennas at a base station, leading to the generation of a channel information matrix. This matrix undergoes transformation using a transform matrix composed of complex basis vectors, enabling effective calculation of reception power across antennas. The outcome is the selection of antennas for optimal performance while ensuring reliable adaptation at varying speeds of movement.

2. **Wireless communication system with feedback and method therefore**

In this invention, a wireless communication system is defined that consists of multiple transmitting and receiving antennas. The system includes a transmitter capable of restoring feedback information from signals and weights information signals accordingly for transmission as radio frequency signals. The receiver estimates channel conditions and processes feedback information for enhanced communication reliability. This innovative approach offers advanced methods for managing feedback and optimizing signal quality.

Career Highlights

Keun-chul Hwang is employed at Samsung Electronics Co., Ltd., where his work continues to shape the future of wireless technologies. His innovative thinking and technical expertise contribute significantly to the company’s research and development efforts in communication systems.

Collaborations

Throughout his career, Hwang has collaborated with talented colleagues, including Kwang-Bok Lee and Sung-jin Kim. These collaborations have been instrumental in driving forward innovative solutions in the realm of wireless communication, facilitating progress and development across various projects.

Conclusion

Keun-chul Hwang's inventive spirit and technical innovations are crucial in addressing the growing demands of wireless communication technology. His contributions through patented inventions stand as a testament to his expertise and commitment to advancing the field. As he continues to work at Samsung Electronics Co., Ltd., the impact of his work is likely to resonate within the industry for years to come.