Krishnamurthi Giridhar

Title: Innovations of Krishnamurthi Giridhar

Introduction

Krishnamurthi Giridhar is a prominent inventor based in Chennai, India. He has made significant contributions to the field of wireless communication, holding a total of seven patents. His work focuses on enhancing data transmission and reception in wireless systems, particularly in mitigating interference.

Latest Patents

One of his latest patents is titled "Pilot aided data transmission and reception with interference mitigation in wireless systems." This invention aims to reduce interference at pilot symbols while enabling accurate interference measurements. By utilizing a combination of pilot tones and null tones, the system allows receivers to estimate channel state information without strong interference from neighboring transmitters. It also measures individual interference channel states or covariances during silent periods, which helps in calculating post-processing Signal-to-Interference-plus-Noise Ratio (SINR) and reporting Channel Quality Indicators (CQIs) to the transmitter. The implementation includes a frequency reuse structure and a multi-antenna precoder for pilot signals.

Another notable patent is "Robust channel estimation of OFDM systems." This invention provides a method for estimating channels in wireless communication systems using Orthogonal Frequency Division Multiplexing (OFDM). It employs Maximum Likelihood (ML) estimates of the channel frequency response at pilot locations. A hypothesis test is conducted on these estimates to determine a shrinkage target, and biased estimation methods are utilized to improve the accuracy of the channel frequency response. The estimates are then interpolated using filters such as the Empirical Weiner Filter or a robust 2D-MMSE filter.

Career Highlights

Krishnamurthi Giridhar has worked with esteemed organizations, including the Centre of Excellence in Wireless Technology. His expertise in wireless communication has positioned him as a key figure in the industry, contributing to advancements in technology and innovation.

Collaborations

Throughout his career, he has collaborated with notable professionals such as Kiran Kumar Kuchi and Vinod Ramaswamy. These collaborations have further enriched his work and contributed to the development of innovative solutions in wireless technology.

Conclusion

Krishnamurthi Giridhar's contributions to wireless communication through his patents and collaborations highlight his role as a significant inventor in the field. His innovative approaches to data transmission and channel estimation continue to influence advancements in technology.