scholarly journals MUX/DEMUX circuit using plasmonic antennas for LiFi and WiFi uplink and downlink transmission

2022 ◽  
Author(s):  
A. Garhwal ◽  
A. E. Arumona ◽  
K. Ray ◽  
P. Youplao ◽  
S. Punthawanunt ◽  
...  
Keyword(s):  
Downlink Transmission

Lightbeam Configuration Method and Interference Elimination Resource Scheduling for Indoor Multibeam VLC Networks

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Cong-Nam Tran ◽  
Nam-Hoang Nguyen ◽  
Trong-Minh Hoang
Keyword(s):  
Transmission Rate ◽  
Resource Scheduling ◽  
Packet Delay ◽  
Access Point ◽  
Visible Light Communications ◽  
Resource Allocation Algorithm ◽  
Downlink Transmission ◽  
High Data ◽  
Interference Elimination ◽  
Multi Access

AbstractVisible light communications (VLC) is considered as an alternative communications technology for providing indoor wireless services. VLC systems are expected to offer high data transmission rate and seamless coverage. In order to achieve these requirements, VLC systems utilizing multi-lightbeam access points (multibeam VLC-AP) for downlink transmission have been proposed recently. In this paper, we present a lightbeam configuration method and an interference elimination resource scheduling mechanism (IERS) for indoor multibeam multi-access point VLC systems. The proposed lightbeam configuration method ensures seamless connectivity between user equipment and VLC-AP. The proposed IERS mechanism consists of a beam assignment algorithm and a resource allocation algorithm for eliminating co-channel interference as well as improving system performance. Performance results obtained by computer simulation indicate that there are significant improvements in terms of downlink signal to interference plus noise ratio, user throughput and packet delay when the proposed IERS mechanism is deployed.

scholarly journals EQSM-based multiuser MIMO downlink transmission for correlated fading channels

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Francisco R. Castillo-Soria ◽  
Carlos A. Gutierrez ◽  
Abel García-Barrientos ◽  
Armando Arce-Casas ◽  
Jorge Simón
Keyword(s):  
Fading Channels ◽  
Multiuser Mimo ◽  
Downlink Transmission ◽  
Correlated Fading ◽  
Correlated Fading Channels ◽  
Mimo Downlink ◽  
Multiuser Mimo Downlink

Plasmonic Antenna Embedded Chalcogenide MZI Circuit for Ultra-high Density Up- and Downlink Transmission

Plasmonics ◽  
2021 ◽  
Author(s):  
Arumona Edward Arumona ◽  
Anita Garhwal ◽  
Montree Bunruangses ◽  
Kanad Ray ◽  
Phichai Youplao ◽  
...  
Keyword(s):  
High Density ◽  
Downlink Transmission

scholarly journals Offset-Based Beamforming: A New Approach to Robust Downlink Transmission

2019 ◽  
Vol 67 (1) ◽  
pp. 70-82 ◽  
Author(s):  
Mostafa Medra ◽  
Yongwei Huang ◽  
Timothy N. Davidson
Keyword(s):  
New Approach ◽  
Downlink Transmission
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