Search Results for author: Usman Raza

Found 6 papers, 2 papers with code

FLARE: Detection and Mitigation of Concept Drift for Federated Learning based IoT Deployments

no code implementations15 May 2023 Theo Chow, Usman Raza, Ioannis Mavromatis, Aftab Khan

In order to simultaneously reduce communication traffic and maintain the integrity of inference models, we introduce FLARE, a novel lightweight dual-scheduler FL framework that conditionally transfers training data, and deploys models between edge and sensor endpoints based on observing the model's training behaviour and inference statistics, respectively.

Federated Learning Scheduling

Deep Transfer Learning for WiFi Localization

no code implementations8 Mar 2021 Peizheng Li, Han Cui, Aftab Khan, Usman Raza, Robert Piechocki, Angela Doufexi, Tim Farnham

Finally, an ablation study of the training dataset shows that, in both office and sport hall scenarios, after reusing the feature extraction layers of the base model, only 55% of the training data is required to obtain the models' accuracy similar to the base models.

Transfer Learning

Wireless Localisation in WiFi using Novel Deep Architectures

no code implementations16 Oct 2020 Peizheng Li, Han Cui, Aftab Khan, Usman Raza, Robert Piechocki, Angela Doufexi, Tim Farnham

Meanwhile, using a well-organised architecture, the neural network models can be trained directly with raw data from the CSI and localisation features can be automatically extracted to achieve accurate position estimates.

Standing on the Shoulders of Giants: AI-driven Calibration of Localisation Technologies

no code implementations30 May 2019 Aftab Khan, Tim Farnham, Roget Kou, Usman Raza, Thajanee Premalal, Aleksandar Stanoev, William Thompson

High accuracy localisation technologies exist but are prohibitively expensive to deploy for large indoor spaces such as warehouses, factories, and supermarkets to track assets and people.

How Agile is the Adaptive Data Rate Mechanism of LoRaWAN?

1 code implementation28 Aug 2018 Shengyang Li, Usman Raza, Aftab Khan

The LoRaWAN based Low Power Wide Area networks aim to provide long-range connectivity to a large number of devices by exploiting limited radio resources.

Networking and Internet Architecture

Low Power Wide Area Network Analysis: Can LoRa Scale?

1 code implementation15 Oct 2016 Orestis Georgiou, Usman Raza

Low Power Wide Area (LPWA) networks are making spectacular progress from design, standardisation, to commercialisation.

Networking and Internet Architecture

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