Pub Date : 2022-01-01DOI: 10.1504/ijmndi.2022.10051471
T. Moon, J. Sodha, M. Billah
{"title":"Target codes","authors":"T. Moon, J. Sodha, M. Billah","doi":"10.1504/ijmndi.2022.10051471","DOIUrl":"https://doi.org/10.1504/ijmndi.2022.10051471","url":null,"abstract":"","PeriodicalId":35022,"journal":{"name":"International Journal of Mobile Network Design and Innovation","volume":"238 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85149433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1504/ijmndi.2022.10051465
Amine Nouasri, M. A. Riahla
{"title":"A distributed monitoring scheme for a fleet of UAV flying drones","authors":"Amine Nouasri, M. A. Riahla","doi":"10.1504/ijmndi.2022.10051465","DOIUrl":"https://doi.org/10.1504/ijmndi.2022.10051465","url":null,"abstract":"","PeriodicalId":35022,"journal":{"name":"International Journal of Mobile Network Design and Innovation","volume":"176 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89381962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1504/ijmndi.2022.10051467
K. K. Rakesh, K. Pradeepa
{"title":"Mobile cluster heads on energy conscious predetermined trajectory to minimise the energy hole problem in wireless sensor network","authors":"K. K. Rakesh, K. Pradeepa","doi":"10.1504/ijmndi.2022.10051467","DOIUrl":"https://doi.org/10.1504/ijmndi.2022.10051467","url":null,"abstract":"","PeriodicalId":35022,"journal":{"name":"International Journal of Mobile Network Design and Innovation","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76812469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1504/ijmndi.2022.10051468
A. Kumar, V. Goar, M. Kuri, Mohit Srivastava
- WSNs are used in considering applications normally follow a ring and star topology where all SNs passes information to Centre controllerto Information Collision). Reconfigurable antenna with optimization brings a capable solution to decrease the accidentsdue to data transmit and obtainauthority in a valuable way, conflicting to classical approach of omnidirectional antenna. Enhancement is two different scenarios: an increase digital antenna acquires which related to some situations expand data transmissionvalue, thus enhancing the amount of mobile nodes essential for extending the system network space and reduction in mandatory data transmission power. The main profits, regarded of this research applying RDA with BFOA optimizing algorithm for MANET or WSNs are regarded sparse. In existing work, rechange directional antennas bring new chances to recover and optimize the data collision in WSNs. Various methods are surveying the rechange directional antenna reliant on received cycle (RDA-RICHER) medium access control rules has implemented for WSN sensor nodes devices with switched antennas. The wide research has been done on wireless network through RDA method that essentially reduces the rate of the energy consumption. The model of the energy consumption is for desired number of nodes. The main issue of the unique node and energy efficiency are undertaken in proposed research using bacteria foragining optimization and also evaluate the optimize energy consumption, optimize latency, received signal strength and collision rates in percentage.
{"title":"Directional antenna with reproduction optimisation (BFOA) used in mobile ad-hoc network","authors":"A. Kumar, V. Goar, M. Kuri, Mohit Srivastava","doi":"10.1504/ijmndi.2022.10051468","DOIUrl":"https://doi.org/10.1504/ijmndi.2022.10051468","url":null,"abstract":"- WSNs are used in considering applications normally follow a ring and star topology where all SNs passes information to Centre controllerto Information Collision). Reconfigurable antenna with optimization brings a capable solution to decrease the accidentsdue to data transmit and obtainauthority in a valuable way, conflicting to classical approach of omnidirectional antenna. Enhancement is two different scenarios: an increase digital antenna acquires which related to some situations expand data transmissionvalue, thus enhancing the amount of mobile nodes essential for extending the system network space and reduction in mandatory data transmission power. The main profits, regarded of this research applying RDA with BFOA optimizing algorithm for MANET or WSNs are regarded sparse. In existing work, rechange directional antennas bring new chances to recover and optimize the data collision in WSNs. Various methods are surveying the rechange directional antenna reliant on received cycle (RDA-RICHER) medium access control rules has implemented for WSN sensor nodes devices with switched antennas. The wide research has been done on wireless network through RDA method that essentially reduces the rate of the energy consumption. The model of the energy consumption is for desired number of nodes. The main issue of the unique node and energy efficiency are undertaken in proposed research using bacteria foragining optimization and also evaluate the optimize energy consumption, optimize latency, received signal strength and collision rates in percentage.","PeriodicalId":35022,"journal":{"name":"International Journal of Mobile Network Design and Innovation","volume":"166 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73175871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1504/ijmndi.2022.10051466
K. Pradeepa, K. J. Vagini
{"title":"Triangle based partitioning with multiple mobile sinks on predetermined trajectory for enhancing the sensor network lifetime","authors":"K. Pradeepa, K. J. Vagini","doi":"10.1504/ijmndi.2022.10051466","DOIUrl":"https://doi.org/10.1504/ijmndi.2022.10051466","url":null,"abstract":"","PeriodicalId":35022,"journal":{"name":"International Journal of Mobile Network Design and Innovation","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75657455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1504/ijmndi.2022.10054902
Venkatram N, R. Reddy
{"title":"Enhanced Network Lifetime in WBAN using Hybrid Meta-heuristic-enabled Mobile and Multiple Sink Nodes-connected Routing","authors":"Venkatram N, R. Reddy","doi":"10.1504/ijmndi.2022.10054902","DOIUrl":"https://doi.org/10.1504/ijmndi.2022.10054902","url":null,"abstract":"","PeriodicalId":35022,"journal":{"name":"International Journal of Mobile Network Design and Innovation","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80076852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-12DOI: 10.36227/techrxiv.16760101
V. Savaux, Patrick Savelli
This paper deals with multipath channel estimation and equalization in LoRa. It is suggested to take advantage of the cyclic property of the symbols in the LoRa frame preamble to obtain an interference-free version of the symbols in the frequency domain. Then, estimation methods used in multicarrier systems can be applied, such as the least square (LS), and the minimum mean square error (MMSE) estimators. It is shown that the cyclic property in LoRa is inherently independent of the length of the channel, making these estimation techniques robust to any frequency-selective channel. In addition the frequency domain zero-forcing (ZF) equalizer is used, and an original phase equalizer is introduced, taking advantage of the constant modulus property of LoRa symbols in the frequency domain. The performance of the investigated estimators and equalizers is shown through simulations, and applications to the presented results are further discussed.
{"title":"Frequency Domain Preamble-Based Channel Estimation and Equalization in LoRa","authors":"V. Savaux, Patrick Savelli","doi":"10.36227/techrxiv.16760101","DOIUrl":"https://doi.org/10.36227/techrxiv.16760101","url":null,"abstract":"This paper deals with multipath channel estimation and equalization in LoRa. It is suggested to take advantage of the cyclic property of the symbols in the LoRa frame preamble to obtain an interference-free version of the symbols in the frequency domain. Then, estimation methods used in multicarrier systems can be applied, such as the least square (LS), and the minimum mean square error (MMSE) estimators. It is shown that the cyclic property in LoRa is inherently independent of the length of the channel, making these estimation techniques robust to any frequency-selective channel. In addition the frequency domain zero-forcing (ZF) equalizer is used, and an original phase equalizer is introduced, taking advantage of the constant modulus property of LoRa symbols in the frequency domain. The performance of the investigated estimators and equalizers is shown through simulations, and applications to the presented results are further discussed.","PeriodicalId":35022,"journal":{"name":"International Journal of Mobile Network Design and Innovation","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81121572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-23DOI: 10.36227/techrxiv.16657063.v1
V. Savaux
This paper deals with a method of demodulation for oversampled LoRa signal. The usual maximum likelihood (ML) based demodulation method for LoRa chirp spread spectrum (CSS) waveform is dedicated to signals sampled at Nyquist rate, whereas considering oversampled signals may improve the performance of the LoRa demodulation process. In this respect, when an oversampling rate (OSR) 2 is assumed, the method suggested in this paper consists in applying two demodulation processes to the even and odd samples of the oversampled LoRa signal, and then combining the results. This principle is then generalized to any OSR, and we show that the complexity of the method is low since it only involves discrete Fourier transforms (DFT). Moreover, a performance analysis in terms of symbol and bit error rate (SER and BER) is presented considering both additive white Gaussian noise (AWGN) and Rayleigh channel models. Simulations show the relevance of the method and the performance analysis as a gain of 3 dB is achieved by the demodulation at OSR 2 compared with OSR 1.
{"title":"A Low-Complexity Demodulation for Oversampled LoRa Signal","authors":"V. Savaux","doi":"10.36227/techrxiv.16657063.v1","DOIUrl":"https://doi.org/10.36227/techrxiv.16657063.v1","url":null,"abstract":"This paper deals with a method of demodulation for oversampled LoRa signal. The usual maximum likelihood (ML) based demodulation method for LoRa chirp spread spectrum (CSS) waveform is dedicated to signals sampled at Nyquist rate, whereas considering oversampled signals may improve the performance of the LoRa demodulation process. In this respect, when an oversampling rate (OSR) 2 is assumed, the method suggested in this paper consists in applying two demodulation processes to the even and odd samples of the oversampled LoRa signal, and then combining the results. This principle is then generalized to any OSR, and we show that the complexity of the method is low since it only involves discrete Fourier transforms (DFT). Moreover, a performance analysis in terms of symbol and bit error rate (SER and BER) is presented considering both additive white Gaussian noise (AWGN) and Rayleigh channel models. Simulations show the relevance of the method and the performance analysis as a gain of 3 dB is achieved by the demodulation at OSR 2 compared with OSR 1.","PeriodicalId":35022,"journal":{"name":"International Journal of Mobile Network Design and Innovation","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87949894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-06DOI: 10.36227/techrxiv.14877078
V. Savaux
This paper deals with an improved demodulation technique for LoRa signal. The principle consists in detecting the possible errors of demodulation, by comparing the highest peak of the periodogram of the dechirped received signal weighted by a coefficient beta? smaller than one with the other peaks of the periodogram. If an error is detected, a second demodulation stage is processed at an oversampling rate (OSR) higher than the first demodulation stage. Otherwise, the result of the first demodulation is kept. A thorough performance analysis of the suggested technique, based on order statistics, is carried out, in terms of detection rate, error rate, and complexity. It is shown that beta? can be tuned to adjusts the trade-off between performance and complexity. Moreover, simulations results shows that it is possible, for relatively low signal-to-noise (SNR) values, to reach the performance of the demodulation at highest OSR while keeping the complexity of the demodulation at lowest OSR.
{"title":"An Improved Demodulation for LoRa Through a Threshold-Based Detection of Error","authors":"V. Savaux","doi":"10.36227/techrxiv.14877078","DOIUrl":"https://doi.org/10.36227/techrxiv.14877078","url":null,"abstract":"This paper deals with an improved demodulation technique for LoRa signal. The principle consists in detecting the possible errors of demodulation, by comparing the highest peak of the periodogram of the dechirped received signal weighted by a coefficient beta? smaller than one with the other peaks of the periodogram. If an error is detected, a second demodulation stage is processed at an oversampling rate (OSR) higher than the first demodulation stage. Otherwise, the result of the first demodulation is kept. A thorough performance analysis of the suggested technique, based on order statistics, is carried out, in terms of detection rate, error rate, and complexity. It is shown that beta? can be tuned to adjusts the trade-off between performance and complexity. Moreover, simulations results shows that it is possible, for relatively low signal-to-noise (SNR) values, to reach the performance of the demodulation at highest OSR while keeping the complexity of the demodulation at lowest OSR.","PeriodicalId":35022,"journal":{"name":"International Journal of Mobile Network Design and Innovation","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82052872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.1504/ijmndi.2021.10042687
K. Pradeepa, K. Jisha
{"title":"Lifetime enhancement of wireless sensor using multiple mobile data collectors and optimised trajectory","authors":"K. Pradeepa, K. Jisha","doi":"10.1504/ijmndi.2021.10042687","DOIUrl":"https://doi.org/10.1504/ijmndi.2021.10042687","url":null,"abstract":"","PeriodicalId":35022,"journal":{"name":"International Journal of Mobile Network Design and Innovation","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78714165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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