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Ehsan Aryafar
Researcher at Portland State University
Publications - 61
Citations - 1774
Ehsan Aryafar is an academic researcher from Portland State University. The author has contributed to research in topics: Communication channel & Wireless network. The author has an hindex of 18, co-authored 58 publications receiving 1555 citations. Previous affiliations of Ehsan Aryafar include Princeton University & Intel.
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Proceedings ArticleDOI
MIDU: enabling MIMO full duplex
Ehsan Aryafar,Mohammad A. Khojastepour,Karthikeyan Sundaresan,Sampath Rangarajan,Mung Chiang +4 more
TL;DR: The design and implementation of MIDU is presented, the first MIMO full duplex system for wireless networks, and it is shown that MIDU's design provides large amounts of self-interference cancellation with several key advantages.
Proceedings ArticleDOI
RAT selection games in HetNets
TL;DR: The dynamics of network selection in heterogeneous wireless networks (HetNets) is studied, and it is shown that RAT selection games converge to Nash equilibria in a small number of steps, and hence are amenable to practical implementation.
Proceedings ArticleDOI
Design and experimental evaluation of multi-user beamforming in wireless LANs
TL;DR: The design and implementation of the first multi-user beamforming system and experimental framework for wireless LANs are presented and it is shown that spatial reuse can be increased by efficiently eliminating interference at any desired location; however, this may come at the expense of a significant drop in the quality of the served users.
Proceedings ArticleDOI
Enabling technologies and architectures for 5G wireless
Shilpa Talwar,Debabani Choudhury,Konstantinos Dimou,Ehsan Aryafar,Boyd Bangerter,Kenneth Stewart +5 more
TL;DR: The main 5G technologies are presented and the network and device evolution towards 5G is discussed, including higher densification of heterogeneous networks with massive deployment of small base stations supporting various Radio Access Technologies (RATs), and use of very large Multiple Input Multiple Output (MIMO) arrays.
Proceedings ArticleDOI
Analysis of human-body blockage in urban millimeter-wave cellular communications
Margarita Gapeyenko,Andrey Samuylov,Mikhail Gerasimenko,Dmitri Moltchanov,Sarabjot Singh,Ehsan Aryafar,Shu-Ping Yeh,Nageen Himayat,Sergey Andreev,Yevgeni Koucheryavy +9 more
TL;DR: In this paper, the authors proposed a tractable model for characterizing the blocking caused by humans to mmWave propagation as a function of system parameters like transmitter-receiver locations and dimensions, as well as density and dimensions of humans.