183 citations · 640 across the 53 of their papers we have counts for
8 papers · 1 filter
Two-stage Beamformer Design via Deterministic Equivalents
Hossein Asgharimoghaddam, Antti Tölli
Complexity reduction of optimal linear receiver is considered in a scenario where both the number of single-antenna user equipments (UEs) and base station (BS) antennas are…
Capacity Approaching Low Density Spreading in Uplink NOMA via Asymptotic Analysis
Hossein Asgharimoghaddam, Jarkko Kaleva, Antti Tölli
Low-density spreading non-orthogonal multiple-access (LDS-NOMA) is considered where single-antenna user-equipments (UEs) communicate with a base-station (BS) over fading su…
A Multi-Antenna Coded Caching Scheme with Linear Subpacketization
MohammadJavad Salehi, Antti Tölli, Seyed Pooya Shariatpanahi
Exponentially growing subpacketization is known to be a major issue for practical implementation of coded caching, specially in networks with multi-antenna communication setups. We…
Blockage-aware Reliable mmWave Access via Coordinated Multi-point Connectivity
Dileep Kumar, Jarkko Kaleva, Antti Tölli
The fundamental challenge of the millimeter-wave (mmWave) frequency band is the sensitivity of the radio channel to blockages, which gives rise to unstable connectivity and impacts…
Message passing-based link configuration in short range millimeter wave systems
Nitin Jonathan Myers, Jarkko Kaleva, Antti Tölli +1
Millimeter wave (mmWave) communication in typical wearable and data center settings is short range. As the distance between the transmitter and the receiver in short range scenario…
A Geometry-aided Message Passing Method for AoA-Based Short Range MIMO Channel Estimation
Jarkko Kaleva, Nitin Jonathan Myers, Antti Tölli +1
Short range channels commonly arise in millimeter wave (mmWave) wearable settings, where the length of the antenna arrays can be comparable to the distance between the radios. Conv…
D2D Assisted Beamforming for Coded Caching
Hamidreza Bakhshzad Mahmoodi, Jarkko Kaleva, Seyed Pooya Shariatpanahi +2
Device-to-device (D2D) aided beamforming for coded caching is considered in finite signal-to-noise ratio regime. A novel beamforming scheme is proposed where the local cache conten…
Subpacketization-Rate Trade-off in Multi-Antenna Coded Caching
MohammadJavad Salehi, Antti Tölli, Seyed Pooya Shariatpanahi +1
Coded caching can be applied in wireless multi-antenna communications by multicast beamforming coded data chunks to carefully selected user groups and using the existing file fragm…