scholarly journals Reducing Buffering Delay Using Memory Arbitration Mechanism for IPTV Based Applications

2021 ◽  
Author(s):  
Cammillus S ◽  
Shanmugavel S
Keyword(s):  
High Speed ◽  
Data Transfer ◽  
Video Signals ◽  
High Data ◽  
Low Delay ◽  
Set Top Box ◽  
Proposed Model ◽  
Quartus Ii ◽  
Switching Delay ◽  
Communication Needs

Abstract High-speed communication needs high data transfer capacity and low latency, which are the key parameters of high-speed communication. Converging different applications such as IPTV to high-speed networks requires high transmission capacity and low delay with good QoS. Delays related to IPTV are video buffering, synchronization, and switching delay that obstructs the client's excellent quality assistance. In an application like IPTV, the video signals are buffered (happened to be in near end routers), and they are recombined for the client when it is asserted. To achieve the above stated, memory banks are deployed in a set top box that is used to buffer the video signals that enter in, thereby reducing expected delay. Playback mechanism is also included along with the proposed model to accomplish a better outcome. Proposed RTL schematic design was simulated using Verilog, executed in Model Sim – Altera 10.1b (Quartus II 12.1 edition) and Cadence 5.

Modulation and Demodulation Techniques in Indoor Visible Light Communication System

2014 ◽  
Vol 685 ◽  
pp. 306-309
Author(s):  
Hao Wang ◽  
Ze Yu Han
Keyword(s):  
Visible Light ◽  
Communication Technology ◽  
Communication System ◽  
High Speed ◽  
Data Transfer ◽  
Visible Light Communication ◽  
Communication Link ◽  
High Data ◽  
Modulation And Demodulation ◽  
The Impact

Visible light communication technology is a emerging wireless and optical communication technology developed after invention and application of white LED.In this paper, we have a research based on indoor visible light communication system of lighting white LED,discuss of the visible light communication channel characteristics,detailedly analysis of the indoor visible light communication link. This paper focuses on the modulation and demodulation method applied to visible light communication. In the past visible light communication is mainly used off keying modulation,however, the data transfer speed is limited due to the influence of ISI .This paper presents a solution based on OFDM modulation and demodulation, to reduce the impact brought from inter-symbol string under high data transfer speed.Based on data analysis and computer simulation,the program presented in this paper can be used as indoor lighting and high-speed data transmission.Finally, give scheme to achieve visible light communication modulation and demodulation,provide a theoretical basis for further experiments.

scholarly journals ANALISA PERBANDINGAN ROUTING PROTOKOL PADA WIRELESS SENSOR NETWORKS (WSNs)

2019 ◽  
Vol 7 (2) ◽  
pp. 177
Author(s):  
Igor Novid ◽  
Delsina Faiza ◽  
Thamrin Thamrin ◽  
Winda Agustiarmi
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Routing Protocol ◽  
Routing Protocols ◽  
High Speed ◽  
Internet Use ◽  
Data Transfer ◽  
Wireless Sensor ◽  
High Data

The development of Internet use has spurred Wireless Sensor Networks (WSNs) technology so that it becomes a widely researched and applied device. With the need to use high WSNs, the quality of features provided such as high data transfer speeds and the smallest possible disruption is something that should be available. Although some uses of WSNs do not require high speed and have a tolerance for interference, there are very few types of use. Nevertheless, routing protocols are provided to meet the types of data transfer requirements. The protocols available for each type will be analyzed and compared to find out the best performance.Keywords: data transfer, routing protocol, WSN.

Design and implementation of OLT switching function in 40/10G TDM-PON experimental system

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Juntao Han ◽  
Rongchuan Yang ◽  
Chaosheng Tang
Keyword(s):  
High Speed ◽  
Data Exchange ◽  
Optical Network ◽  
Access Network ◽  
Experimental System ◽  
Switching Function ◽  
Large Capacity ◽  
Switching Algorithm ◽  
Low Delay ◽  
Switching Delay

Abstract The access network is developing towards large capacity, wide-coverage, and low delay, which puts forward higher requirements for network structure and data exchange performance of optical access network equipment. In this paper, we have designed a high-speed optical network device with 40/10G TDM-PON. To effectively solve the problem of network switching capability in high-speed data transmission, we propose a low delay large capacity switching algorithm, which minimizes the network switching delay. We model the network by integer linear programming and simulate the network based on OMNeT++. The simulation results show that the algorithm can effectively solve the problem of network switching delay in the high-speed network environment.

High Speed Passive Optical Network Based Elastic Optical Communication System

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Nikhlesh Kumar Mishra ◽  
Kamal Kishore Upadhyay ◽  
N. K. Shukla
Keyword(s):  
Optical Networks ◽  
Communication System ◽  
High Speed ◽  
Optical Network ◽  
Wave Length ◽  
Single Mode ◽  
Passive Optical Network ◽  
High Data ◽  
Data Rates ◽  
Communication Needs

AbstractFor addressing needs of modern day communication needs, new type of networks are required to be evolved to cater the demand of high data rates. Use of survivable elastic-optical-network (EON) with existing passive-optical-networks (PON) may provide the solution for this. The present work focus on employing EON–PON based wave-length-division multiplexing enabled communication system comprises of 2×5 Gbps for downlink and 2×1 Gbps for uplink over a single-mode-fibre of length 100 km. The results are the evaluated via bit-error-rate analyser, q factor and eye diagrams.

High-Speed Tracking Method Using Zero Phase Error Tracking-Feed-Forward (ZPET-FF) Control for High-Data-Transfer-Rate Optical Disk Drives

2004 ◽  
Vol 43 (7B) ◽  
pp. 4811-4815 ◽  
Author(s):  
Daiichi Koide ◽  
Hitoshi Yanagisawa ◽  
Haruki Tokumaru ◽  
Shoichi Nakamura ◽  
Kiyoshi Ohishi ◽  
...  
Keyword(s):  
Transfer Rate ◽  
High Speed ◽  
Data Transfer ◽  
Phase Error ◽  
Disk Drives ◽  
Data Transfer Rate ◽  
Tracking Method ◽  
High Data ◽  
Speed Tracking ◽  
Zero Phase

Development of High-Speed Memory Interface Application Based on FPGA

2012 ◽  
Vol 236-237 ◽  
pp. 1004-1009
Author(s):  
Xiao Bo Zhou ◽  
Rui Jing Li ◽  
Qiang Zhao
Keyword(s):  
High Speed ◽  
Data Transfer ◽  
High Capacity ◽  
Hardware Verification ◽  
Time Sharing ◽  
Storage Media ◽  
Quartus Ii ◽  
Feature Based ◽  
Memory Interface ◽  
Sdram Controller

In order to make a convenient interface to the complexity of the timing of high-speed, high-capacity storage medium applications, a new design has been proposed for the interface device of storage media with FIFO feature based on DDRII SDRAM by this thesis. At first, the principles and implementation of DDRII SDRAM controller are introduced. Then the memory interface module has been designed based on the time-sharing technique of DDRII SDRAM. Finally, the principles of the interface controller module have been deeply analyzed and implemented by functional simulation through the Quartus II software and FPGA hardware verification. Through stimulation and verification, the high-speed memory interface controller module based on DDRII SDRAM implemented the bi-directional data transfer and interaction between DDRII memory and FPGA, which has a certain value of practical application.

scholarly journals Visible Light Communication for Data and Audio Transmission using Light -Fidility (Li-Fi)

2019 ◽  
pp. 534-539
Author(s):  
Z. Asmathunnisa ◽  
S. Manavalan ◽  
N. Kumar
Keyword(s):  
Visible Light ◽  
High Speed ◽  
Nuclear Power ◽  
Power Plants ◽  
Data Transfer ◽  
Visible Light Communication ◽  
Electromagnetic Spectrum ◽  
High Data ◽  
Pass Through ◽  
Very High

LiFi is a wireless optical networking technology that uses light-emitting diodes (LEDs) for data transmission. LiFi is designed to use LED light bulbs similar to those currently in use in many energy-conscious homes and offices. LiFi data is transmitted by the LED bulbs and received by photoreceptors. Li-Fi technology transmits data at very high speed and is capable of delivering 224GB of data per second. Furthermore, it offers better security as compared to Wi-Fi. Due to its high speed, Li-Fi technology can be widely used in electromagnetic sensitive areas, such as, hospitals, airplanes, and nuclear power plants. Light Fidelity (Li-Fi) is a data transfer technique that uses light. Light is analogous not only to illumination but also to speed. Li-Fi is also much secured since light cannot pass through walls. It uses visible light portion of the electromagnetic spectrum to transmit information. Hence the visible light communication solves the problem of radio frequency congestion. In this project we transmit data and audio through light at very high data rates without use of microcontrollers and its other peripheral devices.

scholarly journals A 100 Gbps True Full-Duplex Link with Interference Cancellation in the Background

2021 ◽  
Author(s):  
Sandeep Goyal ◽  
Shalabh Gupta
Keyword(s):  
Interference Cancellation ◽  
High Speed ◽  
Data Transfer ◽  
Training Sequence ◽  
Coaxial Cable ◽  
Full Duplex ◽  
Communication Link ◽  
High Data ◽  
Start Up ◽  
High Speed Interconnects

In this work, we introduce the concept of true full-duplexing (TFD) for high-speed interconnects. Full-duplex transceivers at the two ends of an interconnect can support simultaneous bidirectional data transfer. Full-duplexing can help in increasing the throughput per lane and also enable higher data transfer bandwidths without an increase in the routing density. The proposed TFD approach allows for the use of independent modulation schemes as well as independent baud-rates by the transceivers on either side of the interconnect. The approach also obviates the requirement of a dedicated start-up protocol or a training sequence for cancellation of near-end interference in the TFD transceivers. In this work, we have used a correlation-based cancellation technique which can support background cancellation of the interference. Here, we demonstrate a 100 Gbps TFD link over a 1 m long coaxial cable with off-the-shelf components, which is the first demonstration of a full-duplex communication link at such a high data rate.

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