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Eleftherios Karipidis

Researcher at Ericsson

Publications -  70
Citations -  2277

Eleftherios Karipidis is an academic researcher from Ericsson. The author has contributed to research in topics: Beamforming & Wireless network. The author has an hindex of 19, co-authored 70 publications receiving 2164 citations. Previous affiliations of Eleftherios Karipidis include Technical University of Crete & University of Crete.

Papers
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Journal ArticleDOI

Quality of Service and Max-Min Fair Transmit Beamforming to Multiple Cochannel Multicast Groups

TL;DR: It is shown that Lagrangian relaxation coupled with suitable randomization/cochannel multicast power control yield computationally efficient high-quality approximate solutions.
Patent

Network architecture, methods, and devices for a wireless communications network

Stefan Parkvall, +129 more
TL;DR: In this article, the uplink access configuration index is used to identify an uplink AP from among a predetermined plurality of AP configurations, and then the AP is transmitted to the wireless communications network according to the identified AP.
Journal ArticleDOI

Far-Field Multicast Beamforming for Uniform Linear Antenna Arrays

TL;DR: It is proven here that for Vandermonde channel vectors, it is possible to recast the optimization in terms of the autocorrelation sequences of the sought beam vectors, yielding an equivalent convex reformulation in the efficient optimal solution using modern interior point methods.
Journal ArticleDOI

Spectrum sharing improves the network efficiency for cellular operators

TL;DR: The article describes the potential gain by spectrum sharing between cellular operators in terms of network efficiency and encourages to seriously consider the inter-operator spectrum sharing technologies.
Proceedings ArticleDOI

Transmit beamforming to multiple co-channel multicast groups

TL;DR: In this article, the problem of transmits beamforming to multiple co-channel multicast groups is considered, from the viewpoint of guaranteeing a prescribed minimum signal-to-interference-plus-noise-ratio (SENR) at each receiver.