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Int. J. Ultra Wideband Commun. Syst.最新文献

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Energy efficiency performance evaluation for multiband-OFDM UWB cross-layer design 多频带ofdm超宽带跨层设计的能效性能评价
Int. J. Ultra Wideband Commun. Syst. Pub Date : 2018-06-20 DOI: 10.1504/IJUWBCS.2018.092437
H. Chihi
{"title":"Energy efficiency performance evaluation for multiband-OFDM UWB cross-layer design","authors":"H. Chihi","doi":"10.1504/IJUWBCS.2018.092437","DOIUrl":"https://doi.org/10.1504/IJUWBCS.2018.092437","url":null,"abstract":"Energy consumption is an important criterion that needs great attention as it is the requirement of energy efficiency (EE) improvement. In this regard, we analyse the joint association between physical layer through modulation and coding scheme (MCS) and data link layer toward truncated hybrid automatic repeat request (HARQ) type I retransmission protocol into multiband orthogonal frequency division multiplexing ultra-wideband (MB-OFDM UWB) systems. This paper investigates the overall energy expenditure per bit in cross-layer design. The total energy expenditure per bit of information is investigated following an adopted energy consumption model. The idea is about energy per bit diminishing in terms of packet error rate (PER) under the respect of an accurate energy consumption model. Computer results show a comparison between different MCS levels in terms of energy expenditure per bit of information.","PeriodicalId":294875,"journal":{"name":"Int. J. Ultra Wideband Commun. Syst.","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124412744","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}
引用次数: 0
CPW - fed dodecagon ring shape antenna for ultra wide band application 用于超宽带应用的CPW馈电十二角环形天线
Int. J. Ultra Wideband Commun. Syst. Pub Date : 2018-06-20 DOI: 10.1504/IJUWBCS.2018.092428
Amar Sharma, P. Khanna, Anil Kumar Singh, Arun Kumar
{"title":"CPW - fed dodecagon ring shape antenna for ultra wide band application","authors":"Amar Sharma, P. Khanna, Anil Kumar Singh, Arun Kumar","doi":"10.1504/IJUWBCS.2018.092428","DOIUrl":"https://doi.org/10.1504/IJUWBCS.2018.092428","url":null,"abstract":"The paper presents a coplanar waveguide (CPW)–fed compact ultra wideband (UWB) dodecagon ring shape microstrip antenna. The proposed antenna consists of dodecagon ring radiating patch in place of a conventional annular ring microstrip antenna (ARMSA) to achieve UWB. The proposed antenna is simulated through Ansoft's high frequency structure simulator (HFSS v. 14.0). The measured result shows good agreement with the simulated results. The prototype is taken with dimensions 47 mm × 47 mm × 1.6 mm that achieves good return loss, peak gain (8 dBi) and good radiation patterns over the entire operating bandwidth of 2.18 to 13.76 GHz (11.58 GHz) with 145% of impedance bandwidth at 7.97 GHz centre frequency. Thus, the proposed antenna is applicable for numerous wireless applications.","PeriodicalId":294875,"journal":{"name":"Int. J. Ultra Wideband Commun. Syst.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127515411","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}
引用次数: 1
Conception and optimisation of UWB microstrip array antennas for radar applications with ordinary end-fire beam steering characteristic 具有普通端火波束转向特性的超宽带微带阵列雷达天线的设计与优化
Int. J. Ultra Wideband Commun. Syst. Pub Date : 2016-11-13 DOI: 10.1504/IJUWBCS.2016.10001048
A. Slimani, S. Bennani, A. E. Alami
{"title":"Conception and optimisation of UWB microstrip array antennas for radar applications with ordinary end-fire beam steering characteristic","authors":"A. Slimani, S. Bennani, A. E. Alami","doi":"10.1504/IJUWBCS.2016.10001048","DOIUrl":"https://doi.org/10.1504/IJUWBCS.2016.10001048","url":null,"abstract":"In this paper, a compact linear array antennas with ultra wideband (UWB) end-fire characteristic for radar applications is proposed. The array antenna consists of four rectangular antenna element with a partial ground plane and a coplanar waveguide (CPW) transmission line of 50 ohm. The proposed array antennas is etched onto a FR4 printed circuit board (PCB) with an overall size of 85 × 32 × 1.58 mm3 and a dielectric constant er = 4.4, it is planar and simple, and it is able to achieve an impedance bandwidth about 72% which is required in various radar applications like weather radars, local air traffic radars and naval radars. Ansoft's high frequency structure simulator (HFSS) and computer simulation tool (CST) softwares are used to calculate and compare the various parameters mentioned after.","PeriodicalId":294875,"journal":{"name":"Int. J. Ultra Wideband Commun. Syst.","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126078876","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}
引用次数: 1
Compact planar UWB monopole antenna with dual band-notch characteristics 具有双带陷波特性的紧凑平面超宽带单极天线
Int. J. Ultra Wideband Commun. Syst. Pub Date : 2016-11-13 DOI: 10.1504/IJUWBCS.2016.10001063
Manish Sharma, Yogendra Kumar Awasthi, Himanshu Singh
{"title":"Compact planar UWB monopole antenna with dual band-notch characteristics","authors":"Manish Sharma, Yogendra Kumar Awasthi, Himanshu Singh","doi":"10.1504/IJUWBCS.2016.10001063","DOIUrl":"https://doi.org/10.1504/IJUWBCS.2016.10001063","url":null,"abstract":"In this article, a compact Mickey shaped monopole UWB antenna is presented with dual notch band characteristics. The proposed antenna VSWR (<2) and return loss (<-10 dB) results have been verified by EM simulator and the measured impedance bandwidth covers from 2.88 GHz to 12.11 GHz which confirms the bandwidth. Furthermore, the two notched bands, i.e., WiMAX (3.3-3.7 GHz) along with C band (3.7-4.2 GHz) and WLAN (5.15-5.825 GHz) are band rejected so that the interference is mitigated in the existing wireless system. The proposed antenna is fabricated with compact dimensions of 20 × 20 mm² = 400 mm² on FR4 substrate with permitivity 4.4 and thickness of 1.6 mm. The measured gain and radiation characteristics of proposed antenna provide best results showing omni-directional pattern in H-plane and dipole like pattern in E-plane.","PeriodicalId":294875,"journal":{"name":"Int. J. Ultra Wideband Commun. Syst.","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128950786","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}
引用次数: 4
A survey on ultra wideband and ultrasonic communication for body area networks 体域网超宽带及超声通信研究进展
Int. J. Ultra Wideband Commun. Syst. Pub Date : 2016-11-13 DOI: 10.1504/IJUWBCS.2016.10001068
S. Basu, M. Sarkar, S. Nagaraj, S. Chinara
{"title":"A survey on ultra wideband and ultrasonic communication for body area networks","authors":"S. Basu, M. Sarkar, S. Nagaraj, S. Chinara","doi":"10.1504/IJUWBCS.2016.10001068","DOIUrl":"https://doi.org/10.1504/IJUWBCS.2016.10001068","url":null,"abstract":"Emergence of implantable and wearable medical sensors for patient monitoring, diagnosis as well as cure has helped in the development of body area networks (BANs). For networking of these implantable and wearable devices, an appropriate choice of radio technology and communication methodology has to be made. Ultra wideband (UWB) has been identified as a solution for wireless body area networks (WBANs) in IEEE 802.15.6, but there are issues to be addressed such as attenuation inside body for implantable devices, energy efficient networking with low heat dissipation and others. Ultrasonic communication although an emerging technology promises better propagation inside body in watery media. It is known to be used without much health hazard in medical applications. This paper compares and evaluates the above two technologies for WBAN. It provides an extensive survey of existing work on UWB and ultrasonic communication for body area networks and highlights the unaddressed research challenges in using UWB and ultrasonic for WBAN applications.","PeriodicalId":294875,"journal":{"name":"Int. J. Ultra Wideband Commun. Syst.","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134542908","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}
引用次数: 6
Planning of UWB indoor positioning network using binary integer linear programming 基于二进制整数线性规划的超宽带室内定位网络规划
Int. J. Ultra Wideband Commun. Syst. Pub Date : 2016-11-13 DOI: 10.1504/IJUWBCS.2016.10001073
Euiho Kim, Dongkyu Choi
{"title":"Planning of UWB indoor positioning network using binary integer linear programming","authors":"Euiho Kim, Dongkyu Choi","doi":"10.1504/IJUWBCS.2016.10001073","DOIUrl":"https://doi.org/10.1504/IJUWBCS.2016.10001073","url":null,"abstract":"The ultra wide band (UWB) is a promising indoor positioning sensor. Its precise range measurement and wall penetration capability are well suited for indoor navigation. UWB anchor locations must also be carefully determined to achieve the optimal performance of a UWB positioning. However, previous approaches on the UWB anchor placement resulted in poor positioning accuracy around corners of an indoor environment and ignored UWB wall penetration effects. To overcome those shortcomings, this paper introduces an advanced method of an UWB anchor network design that provides high positioning accuracy in all user space and minimises uncertainty due to UWB signal wall penetrations with a binary integer linear programming. It is expected that the presented method would provide a reliable positioning performance that is needed for the navigation of autonomous systems.","PeriodicalId":294875,"journal":{"name":"Int. J. Ultra Wideband Commun. Syst.","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132336018","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}
引用次数: 2
DS-UWB pulse design in IEEE802.15.3a multipath fading channel for cognitive radio applications 认知无线电应用中IEEE802.15.3a多径衰落信道DS-UWB脉冲设计
Int. J. Ultra Wideband Commun. Syst. Pub Date : 2016-11-13 DOI: 10.1504/IJUWBCS.2016.10001074
E. Shaheen
{"title":"DS-UWB pulse design in IEEE802.15.3a multipath fading channel for cognitive radio applications","authors":"E. Shaheen","doi":"10.1504/IJUWBCS.2016.10001074","DOIUrl":"https://doi.org/10.1504/IJUWBCS.2016.10001074","url":null,"abstract":"This paper presents a novel spectrum shaping technique in direct sequence ultra-wideband (DS-UWB) communication systems. This proposed pulse introduces spectral nulls to limit the interference impact of high power coexisting narrowband signals and to elevate the applications of cognitive radio. The idea depends on the addition and subtraction of several UWB Gaussian derivative pulses in order to design a new pulse that has spectral null at the operating frequency of the narrowband interference (NBI) signal. The use of the Gaussian derivative ensures that the UWB spectrum mask established by the Federal Communications Commission (FCC) is met. The NBI signals are modelled as either the wireless local area network (WLAN) IEEE802.11n which operates in the 5 GHz frequency band or multi tone signals. The power spectral density of the proposed transmitted UWB pulse is derived analytically. The bit error rate performance of the proposed pulse is derived in the multi-path IEEE802.15.3a UWB fading channel models and validated with simulations. Results show that the impact of either the IEEE802.11n interference signal or the multi tone interference signals can be effectively suppressed by transmitting and matched filtering the new pulse with a single or multiple spectral nulls at the interference operating frequencies.","PeriodicalId":294875,"journal":{"name":"Int. J. Ultra Wideband Commun. Syst.","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114697750","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}
引用次数: 1
Miniaturised CSCP patch antenna using PMGS and IFS with frequency rejection at 5.5 GHz for UWB wireless applications 小型化CSCP贴片天线，采用PMGS和IFS，频率抑制为5.5 GHz，适用于超宽带无线应用
Int. J. Ultra Wideband Commun. Syst. Pub Date : 2016-11-13 DOI: 10.1504/IJUWBCS.2016.10001044
K. Sawant, C. R. S. Kumar
{"title":"Miniaturised CSCP patch antenna using PMGS and IFS with frequency rejection at 5.5 GHz for UWB wireless applications","authors":"K. Sawant, C. R. S. Kumar","doi":"10.1504/IJUWBCS.2016.10001044","DOIUrl":"https://doi.org/10.1504/IJUWBCS.2016.10001044","url":null,"abstract":"This paper focuses on the performance parameters estimation of a patch antenna in their ultra wideband region. In particular, a special attention intended for FRNB characterisation for WLAN at 5.15-5.825 GHz, bandwidth enhancement, and size reduction. The fractal and PMGS techniques help to keep VSWR < 2. A CSCP antenna excited by a 50 ohm CPW-feed embedded with an N-shaped FRNB is examined and experimentally tested. With this design, the attainable impedance bandwidth is about 138% (S11 < −10 dB) in the UWB range. This antenna is fabricated on FR4 substrate having dielectric constant er = 4.3, thickness t = 1.53 mm, loss tangent tan δ = 0.0162, and effective conductivity at f0(S/m) = 0.0042. The simulated and experimental results are found valid. This antenna is very useful in UWB wireless communications in their band pass and band stop characterisation.","PeriodicalId":294875,"journal":{"name":"Int. J. Ultra Wideband Commun. Syst.","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123878873","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}
引用次数: 0
Design and analysis of superstrate embedded dielectric resonator antenna 叠层嵌入式介质谐振器天线的设计与分析
Int. J. Ultra Wideband Commun. Syst. Pub Date : 2014-05-27 DOI: 10.1504/IJUWBCS.2014.060984
R. Yaduvanshi
{"title":"Design and analysis of superstrate embedded dielectric resonator antenna","authors":"R. Yaduvanshi","doi":"10.1504/IJUWBCS.2014.060984","DOIUrl":"https://doi.org/10.1504/IJUWBCS.2014.060984","url":null,"abstract":"Antenna high gain, wide bandwidth, reconfigurability and compact design has been long requirements in the field of mobile communications and aeronautics. This paper experimentally investigates superstrate layer of arrays placed above the dielectric resonator antenna (DRA), which can largely enhance the gain of antenna. Experimental and simulated results of gain with and without superstrate have been investigated. The superstrate arrays placed on DRA has improved the antenna gain, i.e., 8.7 dBi to 12.27 dBi. The effect of high permittivity material has been studied for gain and bandwidth improvement. Barium strontium titanate (BaSrTio3) mixed with silicon oil was used in DRA. Superstrate array have resulted into gain improvement to the extent of 28%. The design frequency was kept at 6.59 Ghz and verified theoretically using MATLAB. Height of substrate and dielectric constant affected the gain and bandwidth. Theoretical, simulated and experimental results have been compared and found in good agreement.","PeriodicalId":294875,"journal":{"name":"Int. J. Ultra Wideband Commun. Syst.","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131081946","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}
引用次数: 0
Artificial neural network design of stub microstrip band-pass filters 短微带带通滤波器的人工神经网络设计
Int. J. Ultra Wideband Commun. Syst. Pub Date : 2014-05-27 DOI: 10.1504/IJUWBCS.2014.060987
G. Tomar, V. Kushwah, S. Bhadauria
{"title":"Artificial neural network design of stub microstrip band-pass filters","authors":"G. Tomar, V. Kushwah, S. Bhadauria","doi":"10.1504/IJUWBCS.2014.060987","DOIUrl":"https://doi.org/10.1504/IJUWBCS.2014.060987","url":null,"abstract":"In this paper, an artificial neural network (ANN) design technique for a stub microstrip band-pass filter is presented. Essential dimensions of the microstrip filter layout are used to get the relationship of the input-outputs for ANN model. This paper presents the design and analysis of stub microstrip band-pass filter at mid-band frequency 1.8 GHz, which produced improved bandwidth and minimum insertion loss of –0.5899 dB and return loss of –36.67 dB. Artificial neural network architecture has been proposed to determine the magnitude variation of scattering parameters (S-parameters) of the microstrip band-pass filters for various dimensions. The ANN model produced has been exposed to be as exact and veracious as an EM simulator and it is computationally more effective in the design. The simulation is performed using the commercial software IE3D 14.1 and ANN training of S-parameters are performed in MATLAB 7.1.","PeriodicalId":294875,"journal":{"name":"Int. J. Ultra Wideband Commun. Syst.","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123197343","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}
引用次数: 13
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