Effectiveness of BPSK Modulation With Peak Noise Avoidance Algorithm in Smart Street Lighting Communications Based on PLC

Abstract This work reports the measurement results of long-terms tests obtained in real smart street lighting LV networks and in lab test bed. The measurements results are presented in the form of PER vs. SNR characteristics for BPSK coded and BPSK coded with peak noise avoidance algorithm. The surprising results obtained from real LV networks prompted the Authors to carry out detailed lab tests. The setup for lab tests is also presented in this work. To carry out lab tests a suitable software was prepared, it allowed to obtain results in 72 times shorter time comparing to real conditions; it is why this work can present characteristics of PER vs. SNR even for the values of PER at the level of 10−9. The work concludes with disadvantages of using the peak noise avoidance algorithm in PLC communication for smart street lighting.

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Impact Analysis of Interference Sources on Data Communication System for CBTC Application

Advanced Engineering Forum ◽

10.4028/www.scientific.net/aef.6-7.356 ◽

2012 ◽

Vol 6-7 ◽

pp. 356-360

Author(s):

Shao Yin Wang ◽

Yi Yu ◽

Guo Xin Zheng ◽

Qing Feng Ding

Keyword(s):

Communication System ◽

Impact Analysis ◽

Data Communication ◽

Access Point ◽

Outdoor Environment ◽

Test Bed ◽

Communication Performance ◽

Train Control ◽

Data Throughput ◽

Lab Test

We study the anti-interference performance of the 802.11 system when it works as Data Communication System (DCS) in Communication Based Train Control (CBTC). We first conduct extensive experiments on a 802.11b network to assess the ability on a lab test bed, then the outdoor experiments are also conducted. In the presence of jammer, we find that in each case of interference model, there exists a C/I threshold which determine the DCS-Access Point (DCS-AP) and DCS-Station Adapter (DCS-STA) communication performance. In the outdoor environment, different interference sources are adopted to investigate the data throughput value and other parameters of the DCS system under the critical state.

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Providing Quantitative Scalability Improvement of Consistency Control for Large-Scale, Replication-Based Grid Systems

Quantitative Quality of Service for Grid Computing ◽

10.4018/978-1-60566-370-8.ch005 ◽

2011 ◽

pp. 91-111

Author(s):

Yijun Lu ◽

Hong Jiang ◽

Ying Lu

Keyword(s):

Response Time ◽

Large Scale ◽

Cost Effective ◽

Communication Overhead ◽

Control Mechanisms ◽

Test Bed ◽

Consistency Maintenance ◽

Grid Systems ◽

Consistency Control ◽

Lab Test

Consistency control is important in replication-based-Grid systems because it provides QoS guarantee. However, conventional consistency control mechanisms incur high communication overhead and are ill suited for large-scale dynamic Grid systems. In this chapter, the authors propose CVRetrieval (Consistency View Retrieval) to provide quantitative scalability improvement of consistency control for large-scale, replication-based Grid systems. Based on the observation that not all participants are equally active or engaged in distributed online collaboration, CVRetrieval differentiates the notions of consistency maintenance and consistency retrieval. Here, consistency maintenance implies a protocol that periodically communicates with all participants to maintain a certain consistency level; and consistency retrieval means that passive participants explicitly request consistent views from the system when the need arises in stead of joining the expensive consistency maintenance protocol all the time. The rationale is that it is much more cost-effective to satisfy a passive participant’s need on-demand. The evaluation of CVRetrieval is done in two parts. First, by analyzing its scalability and the result shows that CVRetrieval can greatly reduce communication cost and hence make consistency control more scalable. Second, a prototype of CVRetrieval is deployed on the Planet-Lab test-bed and the results show that the active participants experience a short response time at expense of the passive participants that may encounter a longer response time.

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Hardware implementation of MIMO OFDMA test bed and its application towards channel characterization on indoor LAB test environment

2016 Twenty Second National Conference on Communication (NCC) ◽

10.1109/ncc.2016.7561212 ◽

2016 ◽

Author(s):

Sandip Das ◽

Suvra Sekhar Das ◽

Indrajit Chakrabarti

Keyword(s):

Hardware Implementation ◽

Test Bed ◽

Test Environment ◽

Channel Characterization ◽

Lab Test

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Initial radiation measurement results from Europe's Galileo test-bed satellite, Giove-A

57th International Astronautical Congress ◽

10.2514/6.iac-06-b3.6.06 ◽

2006 ◽

Author(s):

K. A. Ryden ◽

P. A. Morris ◽

D. J Rodgers ◽

C. S. Dyer ◽

C. I. Underwood ◽

...

Keyword(s):

Radiation Measurement ◽

Test Bed ◽

Measurement Results ◽

Initial Radiation

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Performance Analysis of DTN Using Level Signal Priority Epidemic Routing Protocol

EMITTER International Journal of Engineering Technology ◽

10.24003/emitter.v3i2.50 ◽

2016 ◽

Vol 3 (2) ◽

Author(s):

Ahmad Zainudin ◽

Amang Sudarsono ◽

Kevin Prima Pambudi

Keyword(s):

Routing Protocol ◽

Network Architecture ◽

Dynamic Routing ◽

Delay Tolerant Network ◽

Test Bed ◽

Measurement Results ◽

Epidemic Routing ◽

Epidemic Dynamic ◽

Performance System ◽

Delay Tolerant

A DTN architecture consists of several nodes that are connected with high dynamic topology. The routing protocol is an important part which determine the DTN performance system. Although DTN is addressed to be tolerant of delay, a routing protocol with better performance will maximizing packet delivery rate and minimizing the delivery latency. This paper evaluate a level signal priority epidemic routing protocol for delay tolerant network architecture. Our system adopts DTN2 framework using classic epidemic and priority epidemic dynamic routing protocols. The performance of both dynamic routing is observed and compared based on throughput and delay of transmitted data. The measurement results show that the classic epidemic use more bandwith due to sending the same messages many times. The delay transmission using a level signal priority epidemic routing is smaller than classic epidemic routing protocol in all hops of the test-bed. Epidemic based on signal level routing could make traffic of network more efficient than classic Epidemic routing because of filtering system in node before sending bundle to neighbor node.Keywords: DTN, dynamic routing, level signal priority

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Heterogeneous (ITS-G5 and 5G) Vehicular Pilot Road Weather Service Platform in a Realistic Operational Environment

Sensors ◽

10.3390/s21051676 ◽

2021 ◽

Vol 21 (5) ◽

pp. 1676

Author(s):

Muhammad Naeem Tahir ◽

Marcos Katz

Keyword(s):

Real Time ◽

Traffic Safety ◽

Field Measurement ◽

Road Traffic ◽

Research Work ◽

Ieee 802.11P ◽

Weather Data ◽

Test Bed ◽

Operational Environment ◽

Measurement Results

VANETs (Vehicular Ad hoc Networks) operating in conjunction with road-side infrastructure connecting road-side infrastructure are an emerging field of wireless communication technology in the vehicular communication’s domain. For VANETs, the IEEE 802.11p-based ITS-G5 is one of the key standards for communication globally. This research work integrates the ITS-G5 with a cellular-based 5G Test Network (5GTN). The resulting advanced heterogeneous Vehicular Network (VN) test-bed works as an effective platform for traffic safety between vehicles and road-side-infrastructure. This test-bed network provides a flexible framework to exploit vehicle-based weather data and road observation information, creating a service architecture for VANETs that supports real-time intelligent traffic services. The network studied in this paper aims to deliver improved road safety by providing real-time weather forecast, road friction information and road traffic related services. This article presents the implementation of a realistic test-bed in Northern Finland and the field measurement results of the heterogeneous VANETs considering the speed of vehicle, latency, good-put time and throughput. The field measurement results have been obtained in a state-of-the-art hybrid VANET system supporting special road weather services. Based on field measurement results, we suggest an efficient solution for a comprehensive hybrid vehicular networking infrastructure exploiting road weather information.

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Experimental Evaluation of Small GTE Test Bed

Volume 1B: Marine; Microturbines, Turbochargers and Small Turbomachines; Steam Turbines ◽

10.1115/gt2014-25811 ◽

2014 ◽

Cited By ~ 1

Author(s):

Jiří Pečinka ◽

Adolf Jílek ◽

Gabriel T. Bugajski

Keyword(s):

Czech Republic ◽

Gas Flow ◽

Operating Conditions ◽

Test Cell ◽

Turbine Engines ◽

Gas Turbine Engines ◽

Test Bed ◽

Engine Thrust ◽

Measurement Results ◽

The University

Staff at the University of Defence in Brno, Czech Republic, designed and constructed a test cell for small gas turbine engines as detailed in GT2012-69419. Once construction was completed, the test cell was instrumented and put through a series of tests to confirm the design suitability, calibrate data acquisition channels, establish correction parameters for measurement values, and examine real operating conditions. This paper details the methodology of those tests with a focus on used equipment, noise emissions, air and gas flow and the associated impact on engine thrust. Lastly, measurement results are presented and compared with the design predictions.

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