11 papers
SumComp: Coding for Digital Over-the-Air Computation via the Ring of Integers
Saeed Razavikia, José Mairton Barros Da Silva Júnior, Carlo Fischione
Communication and computation are traditionally treated as separate entities, allowing for individual optimizations. However, many applications focus on local information's functio…
Optimal QAM Constellation for Over-the-Air Computation in the Presence of Heavy-Tailed Channel Noise
Saeed Razavikia, Deniz Gündüz, Carlo Fischione
Over-the-air computation (OAC) enables low-latency aggregation over multiple-access channels (MACs) by exploiting the superposition property of the wireless medium to compute funct…
VecComp: Vector Computing via MIMO Digital Over-the-Air Computation
Saeed Razavikia, José Mairton Barros Da Silva Junior, Carlo Fischione
Recently, the ChannelComp framework has proposed digital over-the-air computation by designing digital modulations that enable the computation of arbitrary functions. Unlike tradit…
Function Computation Over Multiple Access Channels via Hierarchical Constellations
Saeed Razavikia, Mohammad Kazemi, Deniz Gündüz +1
We study function computation over a Gaussian multiple-access channel (MAC), where multiple transmitters aim at computing a function of their values at a common receiver. To this e…
Multi-Symbol Digital AirComp via Modulation Design and Power Adaptation
Xiaojing Yan, Saeed Razavikia, Carlo Fischione
Recently, over-the-air computation (AirComp) leverages the superposition property of wireless channels to enable efficient function computation over a multiple access channel (MAC)…
Towards Optimal Constellation Design for Digital Over-the-Air Computation
Saeed Razavikia, Deniz Gündüz, Carlo Fischione
Over-the-air computation (OAC) has emerged as a key technique for efficient function computation over multiple-access channels (MACs) by exploiting the waveform superposition prope…