Description: Welcome to Ish's personal webpage
I am a PhD candidate with Prof. Dinesh Bharadia at UCSD. I design and implement novel algorithms for wireless communication and sensing with a focus on millimeter-wave system, vehicular communication, and virtual reality. My research drives the next generation of wireless networks by providing a new perspective on optimizing these networks. While the cellular networks have been driven mainly by throughput so far, I showed that other metrics such as reliability and sustainability are also important and shoul
Modern mmWave systems have limited scalability due to inflexibility in performing frequency multiplexing. All the frequency components in the signal are beamformed to one direction via pencil beams and cannot be streamed to other user directions. We present a new flexible mmWave system called mmFlexible that enables flexible directional frequency multiplexing, where different frequency components of the mmWave signal are beamformed in multiple arbitrary directions with the same pencil beam.
FMCW radars are integral to automotive driving for robust and weather-resistant sensing of surrounding objects. However, these radars are vulnerable to spoofing attacks that can cause sensor malfunction and potentially lead to accidents. Previous attempts at spoofing FMCW radars using an attacker device have not been very effective due to the need for synchronization between the attacker and the victim. We present a novel spoofing mechanism called mmSpoof that does not require synchronization and is resilie