187 citations · 878 across the 25 of their papers we have counts for
27 papers
Mitigating Hand Blockage with Non-Directional Beamforming Codebooks
Vasanthan Raghavan, Ricardo A. Motos, M. Ali Tassoudji +3
Hand blockage leads to significant performance impairments at millimeter wave carrier frequencies. A number of prior works have characterized the loss in signal strength with the h…
Hand and Body Blockage Measurements with Form-Factor User Equipment at 28 GHz
Vasanthan Raghavan, Sonsay Noimanivone, Sung Kil Rho +8
Blockage by the human hand/body is an important impairment in realizing practical millimeter wave wireless systems. Prior works on blockage modeling are either based on theoretical…
Evolution of Physical-Layer Communications Research in the Post-5G Era
Vasanthan Raghavan, Junyi Li
The evolving Fifth Generation New Radio (5G-NR) cellular standardization efforts at the Third Generation Partnership Project (3GPP) brings into focus a number of questions on relev…
Antenna Placement and Performance Tradeoffs with Hand Blockage in Millimeter Wave Systems
Vasanthan Raghavan, Mei-Li, Chi +3
The ongoing commercial deployment of millimeter wave systems brings into focus a number of practical issues in form factor user equipment (UE) design. With wavelengths becoming sma…
Channel Reconstruction-Based Hybrid Precoding for Millimeter Wave Multi-User MIMO Systems
Miguel R. Castellanos, Vasanthan Raghavan, Jung H. Ryu +4
The focus of this paper is on multi-user MIMO transmissions for millimeter wave systems with a hybrid precoding architecture at the base-station. To enable multi-user transmissions…
Statistical Blockage Modeling and Robustness of Beamforming in Millimeter Wave Systems
Vasanthan Raghavan, Lida Akhoondzadeh-asl, Vladimir Podshivalov +5
There has been a growing interest in the commercialization of millimeter wave (mmW) technology as a part of the Fifth-Generation New Radio (5G-NR) wireless standardization efforts.…