scholarly journals High-Speed Concurrent Transmission Scheme for Full Duplex Multi-Hop Relay Assisted mmWave WPAN Networks

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 162192-162205
Author(s):  
Wenson Chang ◽  
Chien-Wen Wu
Keyword(s):  
High Speed ◽  
Full Duplex ◽  
Transmission Scheme ◽  
Concurrent Transmission ◽  
Mmwave Wpan

scholarly journals BSS: A Burst Error-Correction Scheme of Multipath Transmission for Mobile Fog Computing

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Wentao Zhao ◽  
Ping Dong ◽  
Min Guo ◽  
Yuyang Zhang ◽  
Xuehong Chen
Keyword(s):  
High Speed ◽  
High Reliability ◽  
Fog Computing ◽  
Round Robin ◽  
Bandwidth Utilization ◽  
Transmission Scheme ◽  
High Quality ◽  
Multipath Transmission ◽  
Communication Needs ◽  
Bidirectional Selection

In the scenario of mobile fog computing (MFC), communication between vehicles and fog layer, which is called vehicle-to-fog (V2F) communication, needs to use bandwidth resources as much as possible with low delay and high tolerance for errors. In order to adapt to these harsh scenarios, there are important technical challenges concerning the combination of network coding (NC) and multipath transmission to construct high-quality V2F communication for cloud-aware MFC. Most NC schemes exhibit poor reliability in burst errors that often occur in high-speed movement scenarios. These can be improved by using interleaving technology. However, most traditional interleaving schemes for multipath transmission are designed based on round robin (RR) or weighted round robin (WRR), in practice, which can waste a lot of bandwidth resources. In order to solve those problems, this paper proposes a novel multipath transmission scheme for cloud-aware MFC, which is called Bidirectional Selection Scheduling (BSS) scheme. Under the premise of realizing interleaving, since BSS can be used in conjunction with a lot of path scheduling algorithms based on Earliest Delivery Path First (EDPF), it can make better use of bandwidth resources. As a result, BSS has high reliability and bandwidth utilization in harsh scenarios. It can meet the high-quality requirements of cloud-aware MFC for transmission.

scholarly journals Monolitic Hybrid Transmitter-Receiver Lens for Rotary On-Axis Communications

2020 ◽  
Vol 10 (4) ◽  
pp. 1540 ◽  
Author(s):  
René Kirrbach ◽  
Michael Faulwaßer ◽  
Tobias Schneider ◽  
Philipp Meißner ◽  
Alexander Noack ◽  
...  
Keyword(s):  
High Speed ◽  
State Of The Art ◽  
Power Level ◽  
Optical Power ◽  
Full Duplex ◽  
Optical Wireless ◽  
High Complexity ◽  
Optical Wireless Communications ◽  
Optical Crosstalk ◽  
Communication Links

High-speed rotary communication links exhibit high complexity and require challenging assembly tolerances. This article investigates the use of optical wireless communications (OWC) for on-axis rotary communication scenarios. First, OWC is compared with other state-of-the-art technologies. Different realization approaches for bidirectional, full-duplex links are discussed. For the most promising approach, a monolithic hybrid transmitter-receiver lens is designed by ray mapping methodology. Ray tracing simulations are used to study the alignment-depended receiver power level and to determine the effect of optical crosstalk. Over a distance of 12.5 m m , the lens achieves an optical power level at the receiver of − 16.2 dBm to − 8.7 dBm even for misalignments up to 3 m m .

An Integrated High-Speed Full Duplex Coherent OFDM-PON and Visible-Light Communication System

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Simarpreet Kaur ◽  
Mahendra Kumar ◽  
Ashu Verma
Keyword(s):  
Visible Light ◽  
Optical Networks ◽  
High Speed ◽  
Light Emitting Diode ◽  
Low Cost ◽  
Dispersion Compensation ◽  
Optical Network ◽  
Visible Light Communication ◽  
Passive Optical Network ◽  
Full Duplex

AbstractWe demonstrated a full duplex hybrid passive optical network and indoor optical wireless system employing coherent optical frequency division multiplexing. To accomplish reliable transmission in passive optical networks integrated visible-light communication (VLC), yellow light-emitting diode and infrared LED is used in downstream and upstream, respectively, for intra building network. In order to support high data rate, pulse-width reduction scheme based on dispersion compensation fiber is incorporated and system successfully covered the distance of 50 km. A data stream at the rate of 30 Gb/s is transmitted for each user out of eight users. VLC-supported users are catered with the bit rate of 1.87 Gb/s over 150 cm and in order to realize a low-cost system, visible and infrared LEDs are used in downlink and uplink, respectively.

scholarly journals An Adaptive Transmission Scheme for Cognitive Decode-and-Forward Relaying Networks: Half Duplex, Full Duplex, or No Cooperation

2016 ◽  
Vol 15 (8) ◽  
pp. 5586-5602 ◽  
Author(s):  
Edgar Eduardo Benitez Olivo ◽  
Diana Pamela Moya Osorio ◽  
Hirley Alves ◽  
Jose Candido Silveira Santos Filho ◽  
Matti Latva-aho
Keyword(s):  
Adaptive Transmission ◽  
Full Duplex ◽  
Transmission Scheme ◽  
Decode And Forward ◽  
Half Duplex ◽  
Relaying Networks

MAC Enhancement for High Speed Communications in the 802.15.3c mmWave WPAN

2009 ◽  
Vol 51 (4) ◽  
pp. 825-841 ◽  
Author(s):  
Chang-Woo Pyo ◽  
Fumihide Kojima ◽  
Junyi Wang ◽  
Hiroshi Harada ◽  
Shuzo Kato
Keyword(s):  
High Speed ◽  
Mmwave Wpan
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