{"title":"Performance evaluation of cooperative relay networks with one full-energy relay and one energy harvesting relay","authors":"T. T. Nhat, Tran Trung Duy, Vo Nguyen Quoc Bao","doi":"10.1109/SIGTELCOM.2018.8325808","DOIUrl":"https://doi.org/10.1109/SIGTELCOM.2018.8325808","url":null,"abstract":"In this paper, we propose a cooperative relay protocol in which the data transmission between a source and a destination is performed via the assistance of one full-energy (FE) relay and one energy harvesting (EH) relay. In addition, the EH relay harvests energy from the radio frequency (RF) signals of the source and the FE relay, follows a time switching method. For performance evaluation, we derive exact and asymptotic expressions of outage probability (OP) for the proposed protocol over Rayleigh fading channels. Then, the analytical results are validated by computer simulations using Monte Carlo method.","PeriodicalId":236488,"journal":{"name":"2018 2nd International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128778032","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}
{"title":"Optimal sum-throughput analysis for downlink cooperative SWIPT NOMA systems","authors":"Tri Nhu Do, Beongku An","doi":"10.1109/SIGTELCOM.2018.8325811","DOIUrl":"https://doi.org/10.1109/SIGTELCOM.2018.8325811","url":null,"abstract":"In this paper, we investigate the sum-throughput of cell-center and cell-edge users in downlink scenarios of cooperative simultaneous wireless information and power transfer (SWIPT) non-orthogonal multiple access (NOMA) systems. Specifically, we consider a two-user NOMA system, in which the cell-center user acts as a power-splitting (PS)-based SWIPT relay aiming to improve the performance of the cell-edge user. In order to evaluate the performance of the considered system, we first derive a closed-form expression for the outage probability (OP) of the cell-center user and a closed-form approximate expression for the OP of the cell-edge user. Adopting the gradient decent method, we then propose an algorithm that finds the optimal value of the PS coefficient, which results in a maximum sum-throughput of the system. With the obtained optimal PS coefficient, we show that the optimal SWIPT NOMA system provides essential throughput improvement for the cell-edge user while the use of SWIPT-based relaying transmission does not jeopardize the sum-throughput of the system compared to that of non-cooperative NOMA systems.","PeriodicalId":236488,"journal":{"name":"2018 2nd International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128259285","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}
Doan Van Truong, Linh Mai, Van-Su Tran, Nguyễn Bình Dương, Hung Ngoc Do
{"title":"0.5W S-band two-stage power amplifier: Research, design and implementation","authors":"Doan Van Truong, Linh Mai, Van-Su Tran, Nguyễn Bình Dương, Hung Ngoc Do","doi":"10.1109/SIGTELCOM.2018.8325804","DOIUrl":"https://doi.org/10.1109/SIGTELCOM.2018.8325804","url":null,"abstract":"This paper describes the study of designing a power amplifier (PA) operating at S-band which amplifies a low power radio frequency (RF) signals into a higher power signals. The RF transistor BFP740 and GaAs FET MGF2430A are used in this work. The PA includes two stages which have both driver and power stages. The two-stage PA with the bandwidth of 400 MHz at 2.9 GHz center frequency is designed to have the desired specifications. In the designed two-stage PA, the forward gain is over 25 dB and power-added efficiency (PAE) is rather than 20% of combining driver and power stages. Besides, the output power obtains 27 dBm in total. The input/output coefficient reflections are less than −10 dB.","PeriodicalId":236488,"journal":{"name":"2018 2nd International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122022830","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}
S. Jayram, K. Ouahada, S. Rimer, A. Pitsillides, F. Mekuria
{"title":"Stochastically resonant spectrum sensing for white space communications: Dynamic spectrum access and intelligent radios and networks","authors":"S. Jayram, K. Ouahada, S. Rimer, A. Pitsillides, F. Mekuria","doi":"10.1109/SIGTELCOM.2018.8325792","DOIUrl":"https://doi.org/10.1109/SIGTELCOM.2018.8325792","url":null,"abstract":"This paper proposes and investigates Stochastically Resonant Spectrum Sensing (SRSS) in order to expedite Dynamic Spectrum Access and TV White Space (TVWS) communications. SRSS adds noise to a signal in order to enhance its Signal-to-Noise Ratio (SNR) and can be useful in sensing and detecting weak signals, e.g. weak Primary User or even Secondary User activity in TVWS. We demonstrate that SR is a useful Spectrum Sensing technique and can improve SNRs by ∼8–10 dB using MATLAB simulations. Typically, SRSS uses only Additive SR Noise and we include and also investigate Multiplicative SR Noise effects, showing that in certain instances the latter can also improve SNRs by ∼2 dB. We compare the Additive versus the combined Additive and Multiplicative cases using Uniform and Normal/Gaussian distributions and present our results. Our ultimate goal is to include SRSS in an IEEE/DySPAN-SC 1900.∗ Standards based Interference Managing Ontological Cognitive Radio, Intelligent Radio or Policy Based Radio for Ad-Hoc and Heterogeneous i.e. Composite Wireless Networks.","PeriodicalId":236488,"journal":{"name":"2018 2nd International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122879194","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}
{"title":"Evaluation of maintained effect of hypertonic saline solution in Guyton's closed-loop model","authors":"C. N. Thai, L. T. That, H. Cao","doi":"10.1109/SIGTELCOM.2018.8325779","DOIUrl":"https://doi.org/10.1109/SIGTELCOM.2018.8325779","url":null,"abstract":"This paper aims to evaluate the sustainable effect of hypertonic saline solution in Guyton's closed loop model. A model involves the correlation of mean arterial pressure (MAP), heart rate (HR), and cardiac output (CO) is created for investigation. The developed model is then compared with the cardiovascular dynamics system originally schemed by Guyton in 1972. The output results from closed-loop circuitry simulation show a +/−5.86 % difference to the Guyton 1972 model's outputs and less than a +/− 2% difference to the steady state values. The effect of hypertonic saline thought short-lived but stimulated excess body fluid excretion moderately as expected.","PeriodicalId":236488,"journal":{"name":"2018 2nd International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom)","volume":"59 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133409998","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}
Kieu-Ha Phung, H. Tran, Quan M. B. Nguyen, Truong Thu Huong, Thanh-Long Nguyen
{"title":"Analysis and assessment of LoRaWAN","authors":"Kieu-Ha Phung, H. Tran, Quan M. B. Nguyen, Truong Thu Huong, Thanh-Long Nguyen","doi":"10.1109/SIGTELCOM.2018.8325799","DOIUrl":"https://doi.org/10.1109/SIGTELCOM.2018.8325799","url":null,"abstract":"Low-Power Wide Area Network (LPWAN) supports long-range communication for hundreds to millions smart devices and enables new types of services in Internet of Things (IoT) context. Several wireless technologies have proposed; LoRa wireless technology is arguable the most adopted, and LoRaWAN is an open standard network stack based on LoRa modulation at the physical layer. That combination promises popular connectivity in outdoor applications, while maintaining simple network structures and managements. This work provides an in-depth analysis and assessment of LoRaWAN functional components: its capabilities (total traffic load, packet delivery quality) versus its efficiency (collision and frequency usage). The evaluation based on extensive simulation study has given the hints for scalability of network deployment as well.","PeriodicalId":236488,"journal":{"name":"2018 2nd International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131212921","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}
Vo Nguyen Quoc Bao, Tran Trung Duy, Nguyen Toan Van
{"title":"Exact outage analysis of energy-harvesting multihop cluster-based networks with multiple power beacons over Nakagami-m fading channels","authors":"Vo Nguyen Quoc Bao, Tran Trung Duy, Nguyen Toan Van","doi":"10.1109/SIGTELCOM.2018.8325769","DOIUrl":"https://doi.org/10.1109/SIGTELCOM.2018.8325769","url":null,"abstract":"In this paper, we propose energy-harvesting cluster-based multi-hop networks, where all communicating nodes simultaneously harvest energy from radio frequency (RF) radiation transmitted by multiple dedicated power beacons (PBs) to support data transmission. At each hop, relay selection is applied to choose the forwarder. For performance evaluation, we derive the exact and asymptotic expressions of the system outage probability (OP) over Nakagami-m fading channels and then perform Monte Carlo simulations to verify the theoretical analysis results. The obtained results show that the number of relays, the number of PBs as well as the positions of PBs have significant impact on the system performance. In addition, we investigate the optimal time switching ratio and the optimal number of hops.","PeriodicalId":236488,"journal":{"name":"2018 2nd International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114645799","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}
{"title":"A novel content adaptive search strategy for low complexity frame rate up conversion","authors":"Xiem HoangVan, Huy Phi Cong","doi":"10.1109/SIGTELCOM.2018.8325810","DOIUrl":"https://doi.org/10.1109/SIGTELCOM.2018.8325810","url":null,"abstract":"Frame rate up-conversion (FRUC) is an important technique for various film/video conversions, and technology displays due to its benefits in both increasing the viewing quality experiences and reducing the cost of video transmission. However, with the growing of video resolutions and the exceeding of computation associated to the motion estimation (ME), FRUC is hardly suitable for real-time video applications. In this context, we propose a novel ME search strategy for low complexity, yet effective FRUC framework. In the proposed FRUC framework, the search strategy, one of the major aspects which directly influences to the FRUC processing time as well as the interpolated frame quality, is adaptively driven by the video content. Both temporal and spatial activities are considered to adjust the number of searching points according to the minimum of mean absolute difference (MAD) between current and reference blocks. Experimental results conducted for a rich set of video sequences shown the advantages of the proposed FRUC scheme, notably in both interpolated frame quality and time processing when comparing to relevant benchmarks.","PeriodicalId":236488,"journal":{"name":"2018 2nd International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115460566","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}
{"title":"Implementation of vision-based autonomous mobile platform to control by A∗ algorithm","authors":"H. Tran, H. Ngo, T. Nguyen, Hung Nguyen","doi":"10.1109/SIGTELCOM.2018.8325802","DOIUrl":"https://doi.org/10.1109/SIGTELCOM.2018.8325802","url":null,"abstract":"Aiming at rareness of navigation solutions for vehicle platform in unapplicable-GPS or low quality of GPS environment, this paper investigated an approach of vision-based path planning and navigation by a stereo camera. Firstly, camera is calibrated to get its parameters. In this stage, host PC must deterime locations of all objects in working area. When start point and target point is given out, host based on A∗ algorithm generates trajectory for mobile platform to prevent obstacles. Later, vehicle is driven to track the path planning. Additionally, host is able to update status and re-construct trajectory to avoid dynamic obstacles. The low-cost hardware architecture of mobile platform is built-in to verify the design. From the experiments, it can be seen clearly that vehicle runs on the optimized trajectory and navigated successfully.","PeriodicalId":236488,"journal":{"name":"2018 2nd International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133301190","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}
{"title":"A low power two-step cyclic time-to-digital converter without startup time error in 180 nm CMOS","authors":"V. Nguyen, Jong‐Wook Lee","doi":"10.1109/SIGTELCOM.2018.8325773","DOIUrl":"https://doi.org/10.1109/SIGTELCOM.2018.8325773","url":null,"abstract":"We present a low power, small area time-to-digital converter (TDC) based on Venier cyclic digital controlled oscillator (DCO) structure. The TDC is designed to be combined with an array of single photon avalanche diodes (SPAD) arranged in a digital silicon photomultiplier (SiPM) architecture to form a fluorescence lifetime sensor. The high dynamic range is achieved by using two individual counters in two (coarse and fine) conversion steps. The TDC is fabricated in 0.18 μm CMOS process in a compact chip area of 0.23 × 0.12 mm2. Using a 1.8 V supply, the TDC achieves a resolution of 100 ps, dynamic range of 160 ns and an average power consumption of 0.8 mW.","PeriodicalId":236488,"journal":{"name":"2018 2nd International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131629149","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}