Pub Date : 2023-02-07DOI: 10.1109/IMAS55807.2023.10066903
Rui Xu, Z. Shen
A very simple and compact metal-mountable structure is proposed as a tag antenna in UHF RFID systems. Two shorting vias are adopted to connect the ground plane and to reduce the tag size. Some folded meander strips are introduced to further miniaturize the tag size, achieving a compact tag antenna size of 10×30×1.5 mm3, The input impedance of this tag antenna can be easily matched to the complex conjugate of a chip's impedance by using a double T-match network. The measured maximum read distance can reach 4.5 m at the resonant frequency of 912 MHz.
{"title":"A Miniaturized Tag Antenna for UHF RFID Metallic Objects","authors":"Rui Xu, Z. Shen","doi":"10.1109/IMAS55807.2023.10066903","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066903","url":null,"abstract":"A very simple and compact metal-mountable structure is proposed as a tag antenna in UHF RFID systems. Two shorting vias are adopted to connect the ground plane and to reduce the tag size. Some folded meander strips are introduced to further miniaturize the tag size, achieving a compact tag antenna size of 10×30×1.5 mm3, The input impedance of this tag antenna can be easily matched to the complex conjugate of a chip's impedance by using a double T-match network. The measured maximum read distance can reach 4.5 m at the resonant frequency of 912 MHz.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116077502","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 : 2023-02-07DOI: 10.1109/IMAS55807.2023.10066895
G. R, C. Saha, Y. Antar
A dual-port fed Bessel beam launcher designed for 10 GHz microwave wireless power transfer is proposed in this article. The annular slot rings placed on the top plane is excited with a two-port coaxial probe fed circular loop placed in the middle layer. The feed circular loop is designed such that the structure exhibits a parallel combiner feature at the design frequency. The proposed structure is designed and simulated in the full wave numerical solver of ANSYS HFSS. The obtained results indicate a Bessel beam generation within a non-diffracting range of $6lambda$ and parallel combiner nature at 10 GHz.
{"title":"A Dual-Port Bessel Beam Launcher for Microwave Wireless Power Transfer","authors":"G. R, C. Saha, Y. Antar","doi":"10.1109/IMAS55807.2023.10066895","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066895","url":null,"abstract":"A dual-port fed Bessel beam launcher designed for 10 GHz microwave wireless power transfer is proposed in this article. The annular slot rings placed on the top plane is excited with a two-port coaxial probe fed circular loop placed in the middle layer. The feed circular loop is designed such that the structure exhibits a parallel combiner feature at the design frequency. The proposed structure is designed and simulated in the full wave numerical solver of ANSYS HFSS. The obtained results indicate a Bessel beam generation within a non-diffracting range of $6lambda$ and parallel combiner nature at 10 GHz.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129003511","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 : 2023-02-07DOI: 10.1109/IMAS55807.2023.10066891
Ayoub Naoui, B. Reig, E. Perret, Mohamad El-Chaar, F. Podevin
This paper presents a switch based on GeTe (Germanium-Telluride) phase-change material (PCM) suitable for millimeter-wave applications. A shunt configuration with indirect excitation through heating is proposed to facilitate the implementation process in integrated circuits and to reduce impact on RF signal. Electromagnetic simulations, from 50 GHz up to 70 GHz, of two parallel switches shunted a CPW transmission line (TL) show an overall ON-state resistance (RON) of 3 $Omega$ with an OFF-state capacitance (COFF) of 7.1 $mathbf{fF}$. This leads to a high Figure-of-Merit with a cutoff frequency of 7.5 THz. The demonstrated performance is validated through the design of a reflection-type phase shifter (RTPS), where a 3-dB branch-line coupler is loaded with tunable-length lines using those shunt-switches. Simulation results of the RTPS show great precision in terms of phase tunability with an insertion loss (IL) less than 2.7 dB at 60 GHz.
{"title":"Indirect Electrical-Control Through Heating of a GeTe Phase Change Switch and Its Application to Reflexion Type Phase Shifting","authors":"Ayoub Naoui, B. Reig, E. Perret, Mohamad El-Chaar, F. Podevin","doi":"10.1109/IMAS55807.2023.10066891","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066891","url":null,"abstract":"This paper presents a switch based on GeTe (Germanium-Telluride) phase-change material (PCM) suitable for millimeter-wave applications. A shunt configuration with indirect excitation through heating is proposed to facilitate the implementation process in integrated circuits and to reduce impact on RF signal. Electromagnetic simulations, from 50 GHz up to 70 GHz, of two parallel switches shunted a CPW transmission line (TL) show an overall ON-state resistance (RON) of 3 $Omega$ with an OFF-state capacitance (COFF) of 7.1 $mathbf{fF}$. This leads to a high Figure-of-Merit with a cutoff frequency of 7.5 THz. The demonstrated performance is validated through the design of a reflection-type phase shifter (RTPS), where a 3-dB branch-line coupler is loaded with tunable-length lines using those shunt-switches. Simulation results of the RTPS show great precision in terms of phase tunability with an insertion loss (IL) less than 2.7 dB at 60 GHz.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116361433","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 : 2023-02-07DOI: 10.1109/IMAS55807.2023.10066929
A. M. E. Abounemra, Nasser Ojaroudi, A. El-Tager, M. Mahdi, M. Darwish
This paper describes the design and fabrication of a 1500 watts multi-stage L-band RF solid-state power amplifier (SSPA). The basic approach is to use 50-volt Gallium Nitride High Electron Mobility Transistors (GaN-HEMT) for all the stages to ease the requirements for DC power supply, and a step towards the integration into a single chip. So, the main structure of the proposed power amplifying chain is to use 2-parallel connected 800-watt PAs to provide the required output level preceded with a multi-stage cascaded driver to provide the required gain and the power level required by the output stage. A 5-watt amplifier plays the role of a pre-amplifier stage, followed by a 30-watt PA, and finally, a 100-watt PA was employed to generate the necessary power level required to deliver the power stage. The implemented solid state power amplifier chain achieves 1.5 KW total output power, 57 dB power gain associated with total power added efficiency (PAE) of more than 50% when derived with a pulsed input signal with a duty cycle of 5% and pulse duration of $100 mutext{sec}$.
{"title":"A 1.5 KW L-Band All GaN High-Efficiency Solid State Power Amplifier for Pulsed Applications","authors":"A. M. E. Abounemra, Nasser Ojaroudi, A. El-Tager, M. Mahdi, M. Darwish","doi":"10.1109/IMAS55807.2023.10066929","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066929","url":null,"abstract":"This paper describes the design and fabrication of a 1500 watts multi-stage L-band RF solid-state power amplifier (SSPA). The basic approach is to use 50-volt Gallium Nitride High Electron Mobility Transistors (GaN-HEMT) for all the stages to ease the requirements for DC power supply, and a step towards the integration into a single chip. So, the main structure of the proposed power amplifying chain is to use 2-parallel connected 800-watt PAs to provide the required output level preceded with a multi-stage cascaded driver to provide the required gain and the power level required by the output stage. A 5-watt amplifier plays the role of a pre-amplifier stage, followed by a 30-watt PA, and finally, a 100-watt PA was employed to generate the necessary power level required to deliver the power stage. The implemented solid state power amplifier chain achieves 1.5 KW total output power, 57 dB power gain associated with total power added efficiency (PAE) of more than 50% when derived with a pulsed input signal with a duty cycle of 5% and pulse duration of $100 mutext{sec}$.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116485338","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 : 2023-02-07DOI: 10.1109/IMAS55807.2023.10066887
Latarence Butts, Sloan Becker, A. Mantooth, S. El-Ghazaly
While millimeter-wave technology provides the advantages of footprint reduction and enhanced range resolution for radar systems, output power tends to decrease with frequency. Furthermore, the assembly of these components can pose several challenges due to the enhanced losses and parasitics introduced at higher frequencies. In this study, an amplification module consisting of commercial components is designed and integrated with a commercial FMCW W-Band radar system to increase the maximum detectable range. The amplification module consists of power amplifier dies which are assembled for low insertion loss, and power supplies for the power amplifiers. The expected range improvement for the radar is estimated by considering the insertion loss of the GCPW transmission and ribbon bond interconnect which are obtained from electromagnetic simulation. The amplification module is expected to double the range of the original radar.
{"title":"Performance Enhancement of W-Band Radar Through Front End Reconfiguration","authors":"Latarence Butts, Sloan Becker, A. Mantooth, S. El-Ghazaly","doi":"10.1109/IMAS55807.2023.10066887","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066887","url":null,"abstract":"While millimeter-wave technology provides the advantages of footprint reduction and enhanced range resolution for radar systems, output power tends to decrease with frequency. Furthermore, the assembly of these components can pose several challenges due to the enhanced losses and parasitics introduced at higher frequencies. In this study, an amplification module consisting of commercial components is designed and integrated with a commercial FMCW W-Band radar system to increase the maximum detectable range. The amplification module consists of power amplifier dies which are assembled for low insertion loss, and power supplies for the power amplifiers. The expected range improvement for the radar is estimated by considering the insertion loss of the GCPW transmission and ribbon bond interconnect which are obtained from electromagnetic simulation. The amplification module is expected to double the range of the original radar.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114386629","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 : 2023-02-07DOI: 10.1109/IMAS55807.2023.10066885
Rania Rabhi, A. Gharsallah
This work presents a compact circularly polarized (CP) implantable antenna operating at the 2.45 GHz industrial, scientific, and medical (ISM) Band. The antenna is etched on a top layer of a high permittivity substrate Rogers RT 6010 and it features very good miniaturization with overall dimensions of π× 3.5 2 × 0.5 mm3. To mimic the human body environment, the antenna was studied in a numerical three-layer phantom with an implant depth of 15 mm. The simulated results show that the antenna provides a good performance; an impedance bandwidth of 140 MHz (5.66%), a wide axial ratio (AR) bandwidth of 590 MHz (23%), and a peak gain of −26.25 dB were obtained, respectively. Furthermore, for health safety considerations, the specific absorption rate (SAR) was also investigated. All these characteristics make the presented antenna a promising candidate for implantable healthcare applications.
{"title":"Compact Circularly Polarized Implantable Antenna With Wide Axial-Ratio Bandwidth for biomedical applications","authors":"Rania Rabhi, A. Gharsallah","doi":"10.1109/IMAS55807.2023.10066885","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066885","url":null,"abstract":"This work presents a compact circularly polarized (CP) implantable antenna operating at the 2.45 GHz industrial, scientific, and medical (ISM) Band. The antenna is etched on a top layer of a high permittivity substrate Rogers RT 6010 and it features very good miniaturization with overall dimensions of π× 3.5 2 × 0.5 mm3. To mimic the human body environment, the antenna was studied in a numerical three-layer phantom with an implant depth of 15 mm. The simulated results show that the antenna provides a good performance; an impedance bandwidth of 140 MHz (5.66%), a wide axial ratio (AR) bandwidth of 590 MHz (23%), and a peak gain of −26.25 dB were obtained, respectively. Furthermore, for health safety considerations, the specific absorption rate (SAR) was also investigated. All these characteristics make the presented antenna a promising candidate for implantable healthcare applications.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"302 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115139969","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 : 2023-02-07DOI: 10.1109/IMAS55807.2023.10066948
Randa Elkhosht, H. Hammad
In this work, a dual band rectenna system is presented for radio frequency energy harvesting. A broadband high gain Yagi-Uda antenna operating at GSM 1800 and 2100 is designed for scavenging radio frequency radiations. The antenna's return loss is below −10 dB over a fractional bandwidth of 28.6% extending from 1.65 till 2.2 GHz. The antenna has a gain of 3.8 dBi and 5.7 dBi at 1.8 and 2.1 GHz respectively. A half wave rectifier using single shunt diode and a matching network using radial stubs were designed and integrated with the proposed antenna forming the rectenna. The proposed rectenna system achieved an output voltage of approximately 0.23V at 1.8 and 2.1 GHz, and an overall efficiency of 28% for an input power of −10dBm, which makes it suitable for powering wireless sensor nodes.
{"title":"A Dualband Rectenna Design for RF Energy Scavenging using a Modified Yagi-Uda Antenna","authors":"Randa Elkhosht, H. Hammad","doi":"10.1109/IMAS55807.2023.10066948","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066948","url":null,"abstract":"In this work, a dual band rectenna system is presented for radio frequency energy harvesting. A broadband high gain Yagi-Uda antenna operating at GSM 1800 and 2100 is designed for scavenging radio frequency radiations. The antenna's return loss is below −10 dB over a fractional bandwidth of 28.6% extending from 1.65 till 2.2 GHz. The antenna has a gain of 3.8 dBi and 5.7 dBi at 1.8 and 2.1 GHz respectively. A half wave rectifier using single shunt diode and a matching network using radial stubs were designed and integrated with the proposed antenna forming the rectenna. The proposed rectenna system achieved an output voltage of approximately 0.23V at 1.8 and 2.1 GHz, and an overall efficiency of 28% for an input power of −10dBm, which makes it suitable for powering wireless sensor nodes.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126693372","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 : 2023-02-07DOI: 10.1109/IMAS55807.2023.10066925
Ahmed M. H. Eissa, I. Eshrah, Mohamed A. Moharram Hassan
A combination of Random Auxiliary Sources (RAS) and Method of Moments (MoM) is presented to solve the electromagnetic (EM) scattering problems from 2-D PEC structures, including the challenging geometries with sharp corners. The proposed technique is developed to overcome the corner limitation of the RAS method while maintaining its speed. In addition to the typical random set of distributed infinitesimal sources within the scatterer boundary based on the RAS method, the proposed technique incorporates surface currents at critical regions to capture the fast variations of the due to edge conditions. A comparison is held between the proposed hybrid method, conventional MoM and RAS method, and the other corner treatment methods for RAS, showing a significant advantage when using the proposed approach.
{"title":"Analysis of 2-D PEC Cylindrical Scatterers Using a Hybrid RAS-MoM Method","authors":"Ahmed M. H. Eissa, I. Eshrah, Mohamed A. Moharram Hassan","doi":"10.1109/IMAS55807.2023.10066925","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066925","url":null,"abstract":"A combination of Random Auxiliary Sources (RAS) and Method of Moments (MoM) is presented to solve the electromagnetic (EM) scattering problems from 2-D PEC structures, including the challenging geometries with sharp corners. The proposed technique is developed to overcome the corner limitation of the RAS method while maintaining its speed. In addition to the typical random set of distributed infinitesimal sources within the scatterer boundary based on the RAS method, the proposed technique incorporates surface currents at critical regions to capture the fast variations of the due to edge conditions. A comparison is held between the proposed hybrid method, conventional MoM and RAS method, and the other corner treatment methods for RAS, showing a significant advantage when using the proposed approach.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132010793","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 : 2023-02-07DOI: 10.1109/IMAS55807.2023.10066932
Abubakar Sharif, S. Liaqat, K. Arshad, Khaled Assaleh, N. Ramzan
Infants, the elderly, people with disabilities, and patients in hospitals are among those who use disposable diapers. Event-based alerting regarding the wetness level of diapers can improve care for this population by improving incontinence management, decreasing the risk of getting cold, rashes, and infections. Therefore, this paper presents an inkjet printed ultra-high frequency (UHF) radio frequency identification (RFID) sensor for wetness detection of diapers. The proposed sensor design consists of an L-shaped radiator, a T-shaped loop, and two small stubs. The loop is connected to Impinj R6 RFID chip and joined at the middle of L-shaped radiator. This sensor design covers a bandwidth ranging from 900–935 MHz along with a read range of 2.5 m. The tag antenna is optimized to work on water filled slab with a low conductivity value (0.05). However, the realized gain of this sensor reduced drastically after increasing conductivity. An experiment is conducted to record the difference between received signal strength indicator (RSSI) of the empty, water and urine-filled diaper. So, the proposed sensor can be useful for sensing the wetness level of both adult and baby diapers.
{"title":"Inkjet Printed Passive RFID Sensor for Wetness Detection of Diapers","authors":"Abubakar Sharif, S. Liaqat, K. Arshad, Khaled Assaleh, N. Ramzan","doi":"10.1109/IMAS55807.2023.10066932","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066932","url":null,"abstract":"Infants, the elderly, people with disabilities, and patients in hospitals are among those who use disposable diapers. Event-based alerting regarding the wetness level of diapers can improve care for this population by improving incontinence management, decreasing the risk of getting cold, rashes, and infections. Therefore, this paper presents an inkjet printed ultra-high frequency (UHF) radio frequency identification (RFID) sensor for wetness detection of diapers. The proposed sensor design consists of an L-shaped radiator, a T-shaped loop, and two small stubs. The loop is connected to Impinj R6 RFID chip and joined at the middle of L-shaped radiator. This sensor design covers a bandwidth ranging from 900–935 MHz along with a read range of 2.5 m. The tag antenna is optimized to work on water filled slab with a low conductivity value (0.05). However, the realized gain of this sensor reduced drastically after increasing conductivity. An experiment is conducted to record the difference between received signal strength indicator (RSSI) of the empty, water and urine-filled diaper. So, the proposed sensor can be useful for sensing the wetness level of both adult and baby diapers.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"10 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132193416","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 : 2023-02-07DOI: 10.1109/IMAS55807.2023.10066939
A. H. Swalem, J. Halim, H. El Hennawy
This paper investigates the performance analysis of the uplink fixed gain Amplify and Forward (AF) for the Hybrid Satellite Terrestrial Cooperative Networks (HSTCNs). The proposed HSTCN utilizes both the orthogonal and the non-orthogonal Direct Sequence Code Division Multiple Access (DS-CDMA) technique between the uplink users and it applies the maximal ratio combining (MRC) scheme at the destination receiver. The mobile-satellite and the base station-satellite are assumed to have independent uplink channels, described as shadowed-Rician fading channels whereas the mobile-base station link experiences Nakagami-m fading channels. The performance for HSTCN different Techniques are performed under different numbers of relays. Moreover, a closed form Moment Generating Function (MGF) for the uplinks are derived for the total end-to-end instantaneous signal to noise ratio (SNR) to obtain the outage probability and the probability of error. Furthermore, the closed form nth Moment function derivation will be used to estimate the Ergodic capacity of the system. The analytical results are confirmed by Monte Carlo simulations for the uplink HSTCNs. Furthermore, the paper studies the significant parameters of the applied channels for the mobile-satellite, the base station-satellite and the mobile-base station links that affect the system performance.
{"title":"Uplink Performance Analysis of Multiple Relays Hybrid Satellite-Terrestrial Cooperative Networks employing Amplify-and-Forward DS-CDMA Technique","authors":"A. H. Swalem, J. Halim, H. El Hennawy","doi":"10.1109/IMAS55807.2023.10066939","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066939","url":null,"abstract":"This paper investigates the performance analysis of the uplink fixed gain Amplify and Forward (AF) for the Hybrid Satellite Terrestrial Cooperative Networks (HSTCNs). The proposed HSTCN utilizes both the orthogonal and the non-orthogonal Direct Sequence Code Division Multiple Access (DS-CDMA) technique between the uplink users and it applies the maximal ratio combining (MRC) scheme at the destination receiver. The mobile-satellite and the base station-satellite are assumed to have independent uplink channels, described as shadowed-Rician fading channels whereas the mobile-base station link experiences Nakagami-m fading channels. The performance for HSTCN different Techniques are performed under different numbers of relays. Moreover, a closed form Moment Generating Function (MGF) for the uplinks are derived for the total end-to-end instantaneous signal to noise ratio (SNR) to obtain the outage probability and the probability of error. Furthermore, the closed form nth Moment function derivation will be used to estimate the Ergodic capacity of the system. The analytical results are confirmed by Monte Carlo simulations for the uplink HSTCNs. Furthermore, the paper studies the significant parameters of the applied channels for the mobile-satellite, the base station-satellite and the mobile-base station links that affect the system performance.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131240125","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：