A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2011; you can also visit the original URL.
The file type is application/pdf.
Filters
Experience with a wireless network testbed based on signal propagation emulation
2010
2010 European Wireless Conference (EW)
Preserved Fulltext
We also compare the results of various experiments on the emulator with simulation results to shed some light on when the increased accuracy of the emulator testbed is important. ...
Finally, we use the experience gained on the emulator to identify classes of experiments for which the emulator is well suited, compared with other evaluation platforms. ...
Spectrum of OFDM Signals in a Fading Channel with Short Delay Spread Spectrum of OFDM Signals in a Fading Channel with long Delay Spread retransmissions. ...
doi:10.1109/ew.2010.5483538
fatcat:geaey2ds7nhgxnqbaoab4jajde
Multi Channel Multi Clock Frequency Speed rate Real Time Industrial Standard Parallel PRBS CDMA Transceiver Array ASIC SOC Card Design for Ultra High Speed Wireless Communication Products/Application Cards
2016
International Journal of Advanced Engineering Research and Science
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
, frames, super frames, very long word super frames, super very long word frames for very high long distance communications by synchronization of byte,frame, super frame clocks of above same frequencies ...
Spread Spectrum Communication Important encoding method for wireless communications analog & digital data with analog signal spreads data over wide bandwidth makes jamming and interception harder two approaches ...
doi:10.22161/ijaers/3.9.19
fatcat:civil33g5beljbcnl7cnnpl5sa
Terahertz channel modeling of underground sensor networks in oil reservoirs
2012
2012 IEEE Global Communications Conference (GLOBECOM)
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
Our results show that sensors can communicate successfully for distances up to 1 centimeter and we have determined the existence of two transmission bands, in which the path loss is below 100 dB. ...
Different path and absorption loss schemes considered, which suggests that the 70 to 85 THz band is suitable for sensor communications in a medium of crude oil/water mixture and soil. ...
ACKNOWLEDGMENT The authors would like to thank Zhi Sun and Josep Miquel Jornet for their valuable comments that improved the quality of this paper. ...
doi:10.1109/glocom.2012.6503169
dblp:conf/globecom/AkkasAS12
fatcat:i24itgs7ebazrpqlmzwitkjabe
Design and Implementation of Wireless Gas Meter Reading System Based on Spread Spectrum Communication
2018
DEStech Transactions on Computer Science and Engineering
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
A new scheme of Wireless meter reading system used low-power MCU STM8L052 and spread spectrum communication chip SX1278 are proposed. ...
Gas meters, repeaters and data concentrators through the spread spectrum communication transmission of data and instructions, data concentrator and gas management system through the GPRS network for real-time ...
Conclusion In this paper, a wireless remote meter reading system is designed based on LoRa spread spectrum communication and GPRS technology. ...
doi:10.12783/dtcse/wcne2017/19792
fatcat:opuylqqjuvcwhkao2kaatgusyq
Application of Wireless Sensor Network based on LoRa in City Gas Meter Reading
2017
International Journal of Online Engineering (iJOE)
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
Through the comparison and analysis of several wireless communication technologies, a gas meter reading platform based on LoRa spread spectrum and wireless sensors is proposed. ...
With the development of the wireless communication technology, a wireless communication technology named LoRa for long-distance and low-power-consumption devices appeared. ...
Basic Theory and Technology LoRa (Long Rang) is a low-power spread spectrum wireless communication technology proposed by Semtech in 2013. ...
doi:10.3991/ijoe.v13i12.7887
fatcat:kbvgxjycr5bkpch6vuheldbbpu
Demystifying low-power wide-area communications for city IoT applications
2016
Proceedings of the Tenth ACM International Workshop on Wireless Network Testbeds, Experimental Evaluation, and Characterization - WiNTECH '16
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
In this paper, we look beyond data sheets and white papers of LPWA communication technologies and provide insights into the performance of three emerging LPWA solutions based on real world experiments ...
That is, each technology comes with its own advantages and limitations; yet there is a lack of comparative studies that examine their trade-offs based on empirical evidence. ...
Collaborative Research Institute on Sustainable Connected Cities. ...
doi:10.1145/2980159.2980162
dblp:conf/mobicom/KartakisCGLM16
fatcat:52hi7r5kbnfajpjwj7afs4bwye
High performance wireless Ethernet
2001
IEEE Communications Magazine
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The article also discusses the role and limitations of spread spectrum communications in wireless Ethernet. ...
The article describes the history of the IEEE 802.11 standards and the market opportunities in the wireless Ethernet field. ...
The article also discusses the role and limitations of spread spectrum communications in wireless Ethernet. ...
doi:10.1109/35.965361
fatcat:gemjkgmbpjhwbasxkaoorecalu
LORA (Long Range) Based Low Power Emergency Tracking System in Disaster Areas
[chapter]
2021
Advances in Parallel Computing
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
The communication network is one of the major assistances for disaster management purposes. ...
Even when radio equipment works, police officers, rescue teams, medical teams cannot communicate with each other because of incompatible radios. ...
In this solution, we have used LoRa for long-distance transmission which allows us to make communication way easier and more cost-effective [6] . ...
doi:10.3233/apc210261
fatcat:ugdwbaqb2zhitipr6fcnubhupa
A low SINR synchronization system for direct-sequence spread-spectrum communications: radio prototype, verification testbed and experimental results
2008
Proceedings of the 4th International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
Our system uses a high spreading gain in the direct-sequence spread-spectrum (DSSS) modulation to combat the problems associated with low SINR. ...
However, it is difficult to design a communication system that operates correctly in this type of environment. ...
Low SINR is caused by long distance between transmitter and receiver, the communication channel being in fade, or interference from adjacent wireless transmissions over the same frequency spectrum. ...
doi:10.4108/tridentcom.2008.3137
dblp:conf/tridentcom/AmdeSMYC08
fatcat:yekbasd4ubfdphp5ua2ytuhsnq
Improving the Reliability of Unmanned Aircraft System Wireless Communications through Cognitive Radio Technology
2013
Communications and Network
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2014; you can also visit the original URL.
The file type is application/pdf.
Unmanned Aircraft System networks are a special type of networks where high speeds of the nodes, long distances and radio spectrum scarcity pose a number of challenges. ...
In this paper we discuss a modular system based on cognitive to enhance the reliability of UAS networks. ...
Propagation Losses UAS wireless links need to cover long distances of sometimes 360 km, while the most common wireless link such as Wi-Fi, WiMAX, and 3GPP only cover distances of 100 m, 1 km, and 3 km ...
doi:10.4236/cn.2013.53027
fatcat:nj4k5fpfq5hllanirdci2ap2m4
Understanding the impact of cross technology interference on IEEE 802.15.4
2014
Proceedings of the 9th ACM international workshop on Wireless network testbeds, experimental evaluation and characterization - WiNTECH '14
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2016; you can also visit the original URL.
The file type is application/pdf.
Over the last few decades, we witnessed notable progress in wireless communication. ...
This has led to rapid emergence of heterogeneous wireless technologies that share the RF spectrum in an un-coordinated way. ...
This could be due to the underlying spread sequence concentrating on this region of the spectrum. ...
doi:10.1145/2643230.2643235
dblp:conf/mobicom/HithnawiSD14
fatcat:2ghqg63t4vajjjcya3cwzt6ibm
Wireless Local Area Networks: A Comprehensive Guide
2002
Radioengineering
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2016; you can also visit the original URL.
The file type is application/pdf.
Nowadays the demand on exchange of information is higher and higher.During recent years rapid development of radio communication, bothmobile and non-mobile has been experienced. ...
This paper deals mainlywith wireless LAN using license-free band such as 2.4GHz (ISM) or5.2GHz. ...
The standard defines three protocols for the physical layer: Frequency Hopping Spread Spectrum (FHSS), Direct Sequence Spread Spectrum (DSSS) and communication using infrared rays. ...
doaj:d60c041023d045dd9667a0f47a99f125
fatcat:ghqu6kpgejda5gs2zzksy65iri
The wireless revolution
1991
IEEE Communications Magazine
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2014; you can also visit the original URL.
The file type is application/pdf.
., American Personal Communications, PCN America, and Omnipoint Data) are lookingat theviability of overlaying TDMA, FDMA, and spread spectrum mobile radio systems on existing point-to-point microwave ...
Experimental F C C licenses t h a t allow limited use of radio transmissions for portable FAX service, wireless spread spectrum PABX systems, and microcellular and personal communication services have ...
doi:10.1109/35.109666
fatcat:i2w2r4qin5euzkffrty5urgawq
SPREAD SPECTRUM TECHNOLOGY RESEARCH AND ITS APPLICATION IN POWER LINE COMMUNICATION SYSTEMS
2020
T-Comm
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
Ready-made solutions existing on the market provide either high data transmission rates over short distances or a communication long-range with rates not exceeding several tens of kilobits per second. ...
In the course of the experiment, it was found that the joint use of OFDM technology and the spread spectrum technology makes it possible to form a solution that provides communication over power lines ...
Simulation of Spreading Spectrum Technology with Different Lengths of a Coding Sequence The simulation of the communication system for determining the efficiency of using the spreading spectrum technology ...
doi:10.36724/2072-8735-2020-14-10-45-52
fatcat:nacjceuuvjf7heszey2akfwroq
EvaluationOf LoRaWAN In A Highly Dense Environment With Design Of Common Automated Metering Platform (CAMP) Based On LoRaWAN Protocol
2022
KSII Transactions on Internet and Information Systems
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
LoRa offers Long Range with lower power consumption. ...
LoRa Wide Area Network stack can accommodate thousands of nodes under a single LoRa gateway with a single hop communication between the end nodes and LoRaWAN gateway. ...
For facilitating long distance communication with better signal to noise ratio (SNR) and low Bit Error Rate (BER), Spread Spectrum (SS) technique has been in deployment for many years in space communication ...
doi:10.3837/tiis.2022.05.007
fatcat:l6swqg732zdhpjjjap7redgwjm
« Previous
Showing results 1 — 15 out of 17,558 results