Dr. Parag Aggarwal

Wireless communication has undergone a remarkable transformation over the past four decades, evolving from basic analog voice transmission to the development of intelligent, ultra-reliable, and high-speed digital networks. This presentation offers a comprehensive overview of the generational progression from 1G to 6G, highlighting how each era introduced fundamental changes in architecture, capabilities, and user experiences.

The session traces key technological milestones, including advances in modulation, spectrum usage, network architecture, and mobility support. It examines the shift from voice services to data-centric and immersive applications, the growing importance of low latency and high reliability, and the increasing integration of communication with sensing and intelligence.

Through comparative KPIs, timelines, and real-world use case evolution, the presentation illustrates how wireless networks have continually adapted to support emerging societal and industrial needs. It also reflects on the broader challenges that have shaped this evolution—such as spectrum regulation, infrastructure deployment, energy efficiency, and global standardization.

Biography:

Parag Aggarwal received his Ph.D. in Wireless Communication from IIIT-Delhi, India, in 2019. He holds an M.Tech. from ABV-IIITM Gwalior and a B.Tech. from Amity University, Noida. From 2019 to 2021, he served as a System Architect at Wipro Limited, contributing to O-RAN development and novel waveform design for 5G and beyond. From 2021 to 2024, he served as Principal Architect at HFCL Limited, where he led system engineering for 5G Open Radio Unit (O-RU) architecture, including RF front-end optimization and digital predistortion techniques. He was instrumental in the development of HFCL’s 8T8R macro radio unit and contributed to multiple patent filings. Currently, he is a Principal Project Associate at IIIT-Delhi, where he is involved in advanced research on 5G and 6G technologies, including baseband processing, RF hardware impairments, integrated sensing and communication (ISAC), and software-defined radios (SDR). He has published several IEEE journal and conference papers and holds a granted patent on the OTFS waveform, with multiple patents pending in the domain of next-generation wireless systems.