AI for 6G networks
Deep reinforcement learning, LLM-based retrieval-augmented generation and tiny federated wireless foundation models for resource allocation in 6G and beyond.
Intelligent surfaces and NOMA
Reconfigurable intelligent surfaces for 6G, STBC-aided and cooperative NOMA, and IRS-assisted device-to-device communication.
Sensing and security
Integrated sensing and communication, physical layer security in NOMA-ISAC and satellite links, and passive WiFi radar for human activity sensing.
IoT, backscatter and freshness of data
Age-of-information minimisation, backscatter and ambient IoT, and ultra-reliable low-latency communication in industrial IoT.
UAV and non-terrestrial networks
UAV-assisted mmWave and THz networks, high-altitude edge computing and spectrum sharing across terrestrial and non-terrestrial networks.
Foundations
Estimation and detection, cooperative multi-hop networks, stochastic geometry, massive MIMO and spatial modulation.
Projects and collaborations
Collaboration with Mid Sweden University
Started in 2017 with an initiation grant from STINT, with further support from HEC Pakistan and the Swedish Knowledge Foundation (KKS). Joint supervision, bilateral visits and guest lectures with Dr. Aamir Mahmood.
Smart grid communication with opportunistic large arrays
Wireless sensor networks for smart grid communication, funded by the National ICT R&D Fund and running from 2013. Work covered synchronisation, relay selection, network coding and energy efficiency.
Efficient algorithm design in massive MIMO
Algorithms for the high data rates that massive MIMO links promise. Principal investigator Dr. Syed Ali Hassan, co-PI Dr. Sajid Saleem.
Interference alignment in femtocells
Interference management for the move from macro-cellular to dense, data-centric small-cell networks.
Deep learning with passive WiFi sensing
An end-to-end framework that detects human breathing and estimates its rate from reflected WiFi signals, with a public dataset for follow-up work.
Earlier projects
SNR estimation for non-coherent FSK receivers
Optimal estimators with Cramér-Rao bounds, used to choose which nodes join a cooperative transmission.
Stochastic modelling of cooperative wireless networks
Statistical models of multi-hop networks that forward each other's messages.
WiMAX and WiDOCSIS in rural environments
A comparison of two fixed wireless access technologies in the 2.5 GHz band.
Wireless multi-hop networks in homes
Throughput of IEEE 802.11 multi-hop links with MIMO and frame aggregation.
Blind source separation in wireless systems
Separating sources from signal statistics, without training sequences.
Full-rate transmission in dual-hop relay networks
Cooperative relaying schemes that carry one symbol per time slot.