Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Raghavan, Vasanthan"'
Autor:
Raghavan, Vasanthan, Motos, Ricardo A., Tassoudji, M. Ali, Ou, Yu-Chin, Koymen, Ozge H., Li, Junyi
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 hand using studies with horn antennas and form-factor user equipments (
Externí odkaz:
http://arxiv.org/abs/2104.06472
Autor:
Raghavan, Vasanthan, Noimanivone, Sonsay, Rho, Sung Kil, Farin, Bernie, Connor, Patrick, Motos, Ricardo A., Ou, Yu-Chin, Ravid, Kobi, Tassoudji, M. Ali, Koymen, Ozge H., Li, Junyi
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 studies of double knife edge diffraction or its modifications, high-f
Externí odkaz:
http://arxiv.org/abs/1912.03717
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 smaller, antenna gain patterns becoming directional, and link budgets cri
Externí odkaz:
http://arxiv.org/abs/1901.00968
Autor:
Raghavan, Vasanthan, Li, Junyi
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 relevant research problems in physical-layer communications for study by bo
Externí odkaz:
http://arxiv.org/abs/1901.00971
Autor:
Castellanos, Miguel R., Raghavan, Vasanthan, Ryu, Jung H., Koymen, Ozge H., Li, Junyi, Love, David J., Peleato, Borja
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, the base-station uses a cell-specific codebook of beamforming vector
Externí odkaz:
http://arxiv.org/abs/1802.05146
Autor:
Raghavan, Vasanthan, Akhoondzadeh-asl, Lida, Podshivalov, Vladimir, Hulten, Joakim, Tassoudji, M. Ali, Koymen, Ozge Hizir, Sampath, Ashwin, Li, Junyi
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. In this direction, many sets of independent measurement campaigns sho
Externí odkaz:
http://arxiv.org/abs/1801.03346
Autor:
Raghavan, Vasanthan, Partyka, Andrzej, Sampath, Ashwin, Subramanian, Sundar, Koymen, Ozge Hizir, Ravid, Kobi, Cezanne, Juergen, Mukkavilli, Kiran, Li, Junyi
Millimeter-wave multi-input multi-output (mm-Wave MIMO) systems are one of the candidate schemes for 5G wireless standardization efforts. In this context, the main contributions of this article are three-fold. 1) We describe parallel sets of measurem
Externí odkaz:
http://arxiv.org/abs/1710.09449
Autor:
Raghavan, Vasanthan, Partyka, Andrzej, Akhoondzadehasl, Lida, Tassoudji, Ali, Koymen, Ozge, Sanelli, John
There has been an increasing interest in the millimeter wave (mmW) frequency regime in the design of next-generation wireless systems. The focus of this work is on understanding mmW channel properties that have an important bearing on the feasibility
Externí odkaz:
http://arxiv.org/abs/1709.05590
We consider the problem of quickest change-point detection where the observations form a first-order autoregressive (AR) process driven by temporally independent standard Gaussian noise. Subject to possible change are both the drift of the AR(1) proc
Externí odkaz:
http://arxiv.org/abs/1706.00824