701 citations
- European Spallation SourceSE25 papers
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7 papers · 1 filter
Synchronous LoRa Communication by Exploiting Large-Area Out-of-Band Synchronization
Luca Beltramelli, Aamir Mahmood, Paolo Ferrari +3
Many new narrowband low-power wide-area networks (LPWANs) (e.g., LoRaWAN, Sigfox) have opted to use pure ALOHA-like access for its reduced control overhead and asynchronous transmi…
Performance Analysis of Backscatter Communication Systems with Non-orthogonal Multiple Access in Nakagami Fading Channels
Ahsan Waleed Nazar, Syed Ali Hassan, Haejoon Jung +2
Backscatter communication (BackCom) has been emerging as a prospective candidate in tackling lifetime management problems for massively deployed Internet-of-Things devices, which s…
LoRa beyond ALOHA: An Investigation of Alternative Random Access Protocols
Luca Beltramelli, Aamir Mahmood, Patrik Österberg +1
We present a stochastic geometry-based model to investigate alternative medium access choices for LoRaWAN---a widely adopted low-power wide-area networking (LPWAN) technology for t…
Energy-Reliability Aware Link Optimization for Battery-Powered IoT Devices with Non-Ideal Power Amplifiers
Aamir Mahmood, M. M. Aftab Hossain, Cicek Cavdar +1
In this paper, we study cross-layer optimization of low-power wireless links for reliability-aware applications while considering both the constraints and the non-ideal characteris…
Scalability Analysis of a LoRa Network under Imperfect Orthogonality
Aamir Mahmood, Emiliano Sisinni, Lakshmikanth Guntupalli +3
Low-power wide-area network (LPWAN) technologies are gaining momentum for internet-of-things (IoT) applications since they promise wide coverage to a massive number of battery-oper…
Cross-Layer Optimization of Wireless Links under Reliability and Energy Constraints
Aamir Mahmood, M M Aftab Hossain, Mikael Gidlund
The vision of connecting billions of battery operated devices to be used for diverse emerging applications calls for a wireless communication system that can support stringent reli…