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Spectral Efficiency of Energy Harvesting Random Cognitive Radio Networks in Dual-slope Model 双斜率模型下能量收集随机认知无线网络的频谱效率
EAI Endorsed Trans. Cogn. Commun. Pub Date : 2019-01-14 DOI: 10.4108/eai.14-1-2019.160388
S. R. Sabuj, R. Rayhana, Aldrin Nippon Bobby
{"title":"Spectral Efficiency of Energy Harvesting Random Cognitive Radio Networks in Dual-slope Model","authors":"S. R. Sabuj, R. Rayhana, Aldrin Nippon Bobby","doi":"10.4108/eai.14-1-2019.160388","DOIUrl":"https://doi.org/10.4108/eai.14-1-2019.160388","url":null,"abstract":"This research article evaluates the performance of an energy harvesting random cognitive radio network employing a dual-slope path-loss model in terms of spectral efficiency. It derives the mathematical expression of spectral efficiency by means of stochastic geometry for secondary receivers present in the network in active mode. The numerical result highlights a rise in the efficiency by 20.7% for an increase of 1 dBm in transmit power at a power splitting ratio of 0.5.","PeriodicalId":334012,"journal":{"name":"EAI Endorsed Trans. Cogn. Commun.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122731641","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
WIFI/PDR indoor integrated positioning system in a multi-floor environment 多层环境下WIFI/PDR室内综合定位系统
EAI Endorsed Trans. Cogn. Commun. Pub Date : 2019-01-14 DOI: 10.4108/EAI.11-5-2018.155075
Mu Zhou, Maxim Dolgov, Yiyao Liu, Yanmeng Wang
{"title":"WIFI/PDR indoor integrated positioning system in a multi-floor environment","authors":"Mu Zhou, Maxim Dolgov, Yiyao Liu, Yanmeng Wang","doi":"10.4108/EAI.11-5-2018.155075","DOIUrl":"https://doi.org/10.4108/EAI.11-5-2018.155075","url":null,"abstract":"Location-based services (LBS) are services offered through a mobile device that take into account a device’s geographical location. To provide position information for these services, location is a key process. The creation of systems for solving problems of positioning and navigation inside buildings is a very perspective, actual and complicated task, especially in a multi-floor environment. To improve the accuracy of indoor positioning for location-based services, we created an improved WiFi/PDR (Pedestrian Dead Reckoning) integrated positioning and navigation system where we are using Extended Kalman filter (EKF). The proposed algorithm first relies on MEMS in our mobile phone to estimate the velocity and heading angles of the target. Second, the velocity and heading angles, together with the results of WiFi fingerprinting-based positioning, are considered as the input of the EKF for the sake of conducting two-dimensional (2D) positioning. Third, the proposed algorithm calculates the altitude of the target by using the real-time recorded barometer and geographic data. Tests were conducted on two floors of the building to achieve three-dimensional (3D) positioning in multi-floor environment using proposed integrated WiFi/PDR positioning algorithm. The results of our experiments show that integrated navigation system using Extended Kalman filter can effectively eliminate the accumulated errors in the PDR positioning algorithm and can reduce the influence of the large-scale jump of the WiFi fingerprint positioning result brought by the RSSI disturbance on the positioning accuracy of the system. In a real multi-floor environment, the proposed algorithm of WiFi/PDR integrated system has a mean error of positioning accuracy is 1.6m, which is much less than the 10m of the WiFi alone positioning result, and the 2m of the PDR alone positioning result.","PeriodicalId":334012,"journal":{"name":"EAI Endorsed Trans. Cogn. Commun.","volume":"22 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120847007","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
Natural Disasters and Agrarian Conflict 自然灾害和土地冲突
EAI Endorsed Trans. Cogn. Commun. Pub Date : 2019-01-14 DOI: 10.4108/EAI.13-7-2018.158667
Adha Fathiah, A. Afrizal, Jendrius Jendrius
{"title":"Natural Disasters and Agrarian Conflict","authors":"Adha Fathiah, A. Afrizal, Jendrius Jendrius","doi":"10.4108/EAI.13-7-2018.158667","DOIUrl":"https://doi.org/10.4108/EAI.13-7-2018.158667","url":null,"abstract":"The tsunami disaster that stroked Aceh in 2004 not only resulted in massive casualties and huge economic losses, has also resulted in massive horizontal agrarian conflicts. This article will discuss how natural disasters cause horizontal agrarian conflicts. The question that will be answered is how the tsunami caused the agrarian conflicts among the people? How such agrarian conflicts affect the reconstruction effort of after tsunami which is a series of disaster mitigation. This article uses a literature review consisting of research reports, scientific journal articles, and media reports on the impact of the 2004 Aceh tsunami. Study results and media reports suggest that the tsunami disaster resulted in the loss of boundaries of community-controlled land and this causes land disputes among neighbors that influences reconstruction efforts undertaken by governments and NGOs. However, local wisdom on conflict mitigation contributes to the settlement of land conflicts and this has contributed to post-tsunami reconstruction efforts in Aceh. With that this article contributes to the development of knowledge on disaster mitigation.","PeriodicalId":334012,"journal":{"name":"EAI Endorsed Trans. Cogn. Commun.","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130766739","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
Research on Intelligent anti-jamming communication with Cognitive Radio 基于认知无线电的智能抗干扰通信研究
EAI Endorsed Trans. Cogn. Commun. Pub Date : 2019-01-14 DOI: 10.4108/eai.11-5-2018.155074
Jing-ning Wang, Meng Liu, Yi Zhang
{"title":"Research on Intelligent anti-jamming communication with Cognitive Radio","authors":"Jing-ning Wang, Meng Liu, Yi Zhang","doi":"10.4108/eai.11-5-2018.155074","DOIUrl":"https://doi.org/10.4108/eai.11-5-2018.155074","url":null,"abstract":"In order to solve the interfere problem in complex electromagnetic environment, NC-OFDM and TDCS are efficient transmit wave form proposed for cognitive radio. The spectral efficiency and the applicable environment of TDCS are different from NC-OFDM. The simulation results show that NC-OFDM can obtain the higher spectral efficiency and the required SINR is higher, and TDCS can work well in lower SINR environment with different spreading factor. When there is little spectrum hole, spread spectrum is a better choice. There is no threshold of some parameter which can make decision. An artificial intelligence algorithm is proposed to select the optimal one from several wave forms. The input parameters of the algorithm include SINR, interference bandwidth, spectrum holes, etc.","PeriodicalId":334012,"journal":{"name":"EAI Endorsed Trans. Cogn. Commun.","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124528226","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
The Influence of Noise Uncertainty and SNR Wall on the Performance of Hybrid Sensing Method 噪声不确定性和信噪比壁对混合传感方法性能的影响
EAI Endorsed Trans. Cogn. Commun. Pub Date : 2017-12-14 DOI: 10.4108/eai.13-12-2017.153474
Mateusz Kustra, M. Kosmowski, M. Suchanski
{"title":"The Influence of Noise Uncertainty and SNR Wall on the Performance of Hybrid Sensing Method","authors":"Mateusz Kustra, M. Kosmowski, M. Suchanski","doi":"10.4108/eai.13-12-2017.153474","DOIUrl":"https://doi.org/10.4108/eai.13-12-2017.153474","url":null,"abstract":"The paper discusses the hybrid sensing method and presents the hybrid detector (HD) which improves the sensing performance. The proposed HD takes advantage of the energy detection (ED) and a method based on the Covariance Absolute Value (CAV) or Cyclic Autocorrelation Function (CAF). The paper characterizes the limitations of the use of ED resulting from the uncertainty of spectral density of noise power estimation known as ‘SNR Wall’. The paper describes the system model and presents the simulation results for OFDM signal (Orthogonal Frequency Division Multiplexing) of WiMAX system. The simulation results refer to the ideal case of an environment with well-known parameters and for an environment with the uncertainty of spectral density of noise power estimation, as it has been considered in the literature so far. Corresponding author. Email: m.kustra@wil.waw.pl","PeriodicalId":334012,"journal":{"name":"EAI Endorsed Trans. Cogn. Commun.","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124211443","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
Reconfigurable Microstrip Printed Patch Antenna for Future Cognitive Radio Applications 用于未来认知无线电应用的可重构微带印刷贴片天线
EAI Endorsed Trans. Cogn. Commun. Pub Date : 2017-12-13 DOI: 10.4108/eai.13-12-2017.153473
I. Elfergani, M. Al-Rawi, Jonathan Rodriguez, W. Mshwat, A. Hussaini, Abdelgader M. Abdalla, I. Otung, R. Abd‐Alhameed
{"title":"Reconfigurable Microstrip Printed Patch Antenna for Future Cognitive Radio Applications","authors":"I. Elfergani, M. Al-Rawi, Jonathan Rodriguez, W. Mshwat, A. Hussaini, Abdelgader M. Abdalla, I. Otung, R. Abd‐Alhameed","doi":"10.4108/eai.13-12-2017.153473","DOIUrl":"https://doi.org/10.4108/eai.13-12-2017.153473","url":null,"abstract":"A family of compact microstrip antennas are presented targeting applications such as Long-Term Evolution (LTE), Wireless Local Area Networks (WLAN), Universal Mobile Telecommunications system (UMTS), Global System Mobile (GSM) and global positioning system (GPS). These antennas consist of a rectangular shaped structure printed over FR4 substrate. The antenna occupies a small volume of 70x54x1.6mm. A 50-Ohm strip line was used to feed the proposed antennas. For miniaturization purposes, an Ishaped slot was inserted in the appropriate location on the radiator resulting in the second version (antenna with I-shaped slot). The integration of the slot helped towards shifting the resonant frequency downwards, which potentially created an additional resonant frequency to cover the WLAN2400MHz, but this resonant frequency is still static in nature. Thus, tuning mechanisms were introduced to tune the resonant frequency over a wide continuous frequency range. A lumped capacitor was firstly used as the tuning approach, in which its capacitance was varied from 0.5pF to 3pF , covering the frequency range from 2300MHz to 1500MHz. Secondly, the varactor diode was exploited to verify this; by changing the bias voltage across the varactor from 0.21V to 12.9V, the antenna operates over the targeted range from 1500MHz to 2300MHz. Both the simulated and measured results show a stable performance. The proposed antenna may be suitable for future cognitive radio system.","PeriodicalId":334012,"journal":{"name":"EAI Endorsed Trans. Cogn. Commun.","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124832591","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
Modeling of Time and Frequency Random Access Network and Throughput Capacity Analysis 时频随机接入网络建模与吞吐量分析
EAI Endorsed Trans. Cogn. Commun. Pub Date : 2017-05-31 DOI: 10.4108/eai.31-5-2017.152555
V. Savaux, A. Kountouris, Y. Louët, C. Moy
{"title":"Modeling of Time and Frequency Random Access Network and Throughput Capacity Analysis","authors":"V. Savaux, A. Kountouris, Y. Louët, C. Moy","doi":"10.4108/eai.31-5-2017.152555","DOIUrl":"https://doi.org/10.4108/eai.31-5-2017.152555","url":null,"abstract":"In this paper, we model the random multiuser multi-channel access network by using the occupancy problem from probability theory, and we combine this with a network interference model in order to derive the achievable throughput capacity of such networks. Furthermore, we compare the random multi-channel access with a cognitive radio system in which the users are able to minimize the channels occupancy. Besides, we show that the sampling rate can be reduced under the Nyquist rate if the use of the spectrum resource is known at the gateway side. This scenario is referred as \"cognitive radio\" context. The mathematical developments and results are illustrated through various simulations results. The proposed model is particularly relevant in analyzing the performance of networks where the users are not synchronized neither in time nor in frequency as it is often the case in various Internet of Things (IoT) applications.","PeriodicalId":334012,"journal":{"name":"EAI Endorsed Trans. Cogn. Commun.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130657935","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: 3
Spectrum Sensing and Throughput Analysis for Full-Duplex Cognitive Radio with Hardware Impairments 具有硬件损伤的全双工认知无线电频谱感知和吞吐量分析
EAI Endorsed Trans. Cogn. Commun. Pub Date : 2017-05-31 DOI: 10.4108/eai.31-5-2017.152556
A. Nasser, A. Mansour, K. Yao, H. Abdallah, A. Ghani
{"title":"Spectrum Sensing and Throughput Analysis for Full-Duplex Cognitive Radio with Hardware Impairments","authors":"A. Nasser, A. Mansour, K. Yao, H. Abdallah, A. Ghani","doi":"10.4108/eai.31-5-2017.152556","DOIUrl":"https://doi.org/10.4108/eai.31-5-2017.152556","url":null,"abstract":"In Full-d uplex Cognitiv e Radios, the silen t period of the Secondary User (SU) during the Spectrum Sensing can be elimina ted by appl ying the Self -Interf erence Cancella tion (SIC). Due to the channel estima tion error and the hardw are imperf ections (the Phase Noise and the Non-Linear Distortion (NLD)) SIC is not perf ectl y perf ormed and resul ts in the Resid ual Self -Interf erence (RSI) which a ff ects the Spectrum Sensing reliability . In this paper , the e ff ect of RSI on Spectrum Sensing is anal yticall y deriv ed by expressing the detection ( p d ) and false alarm ( p f a ) probabilities under FD in terms of the ones under Half -Duplex (HD) (where SU shoul d remain silen t during the Spectrum Sensing period). In addition, an algorithm is proposed to suppress the NLD and improv es the Spectrum Sensing perf ormance. Hereinafter , the SU throughput under FD is anal ysed comparing to HD by deriving the upper and lower bounds to be respected by p f a and p d respectiv ely in order to make FD beneficia rela tive to HD.","PeriodicalId":334012,"journal":{"name":"EAI Endorsed Trans. Cogn. Commun.","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130254227","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
Social Cognitive Cooperation for Device to Device Communications 设备对设备通信的社会认知合作
EAI Endorsed Trans. Cogn. Commun. Pub Date : 2017-05-31 DOI: 10.4108/eai.31-5-2017.152557
A. Vizziello, Riccardo Amadeo, L. Favalli
{"title":"Social Cognitive Cooperation for Device to Device Communications","authors":"A. Vizziello, Riccardo Amadeo, L. Favalli","doi":"10.4108/eai.31-5-2017.152557","DOIUrl":"https://doi.org/10.4108/eai.31-5-2017.152557","url":null,"abstract":"","PeriodicalId":334012,"journal":{"name":"EAI Endorsed Trans. Cogn. Commun.","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126336917","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
Asymptotic Approximation of the Standard Condition Number Detector for Large Multi-Antenna Cognitive Radio Systems 大型多天线认知无线电系统标准条件数检测器的渐近逼近
EAI Endorsed Trans. Cogn. Commun. Pub Date : 2017-05-31 DOI: 10.4108/eai.31-5-2017.152554
Hussein Kobeissi, Y. Nasser, A. Nafkha, O. Bazzi, Y. Louët
{"title":"Asymptotic Approximation of the Standard Condition Number Detector for Large Multi-Antenna Cognitive Radio Systems","authors":"Hussein Kobeissi, Y. Nasser, A. Nafkha, O. Bazzi, Y. Louët","doi":"10.4108/eai.31-5-2017.152554","DOIUrl":"https://doi.org/10.4108/eai.31-5-2017.152554","url":null,"abstract":"Standard condition number (SCN) detector is a promising detector that can work efficiently in uncertain environments. In this paper, we consider a Cognitive Radio (CR) system with large number of antennas (eg. Massive MIMO) and we provide an accurate and simple closed form approximation for the SCN distribution using the generalized extreme value (GEV) distribution. The approximation framework is based on the moment-matching method where the expressions of the moments are approximated using bi-variate Taylor expansion and results from random matrix theory. In addition, the performance probabilities and the decision threshold are considered. Since the number of antennas and/or the number of samples used in the sensing process may frequently change, this paper provides simple form decision threshold and performance probabilities offering dynamic and real-time computations. Simulation results show that the provided approximations are tightly matched to relative empirical ones. Received on 17 May 2016; accepted on 07 May 2017; published on 31 May 2017","PeriodicalId":334012,"journal":{"name":"EAI Endorsed Trans. Cogn. Commun.","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131702344","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
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