{"title":"Efficient rectifier for wireless power transfer in VHF band","authors":"A. Fisher, D. Peroulis","doi":"10.1109/WAMICON.2018.8363915","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363915","url":null,"abstract":"This paper presents a high-efficiency single-diode rectifier and rectenna targeted to VHF wireless power transfer applications, operating at 82 MHz. The rectifier obtains a peak efficiency of 82% at an input power of 25 mW. Additionally, greater than 50% efficiency is demonstrated for input powers from −3 to 25 dBm and across input frequencies from 73 to 100 MHz. The rectifier is combined with a folded dipole antenna to realize a receiver rectenna for large-area wireless power applications. A design approach for high-efficiency VHF rectennas, applicable to both large-dimension and compact connected sensors and devices, accompanies the measured results.","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114907354","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":"Cross layer-based intrusion detection based on network behavior for IoT","authors":"Amar Amouri, V. Alaparthy, S. Morgera","doi":"10.1109/WAMICON.2018.8363921","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363921","url":null,"abstract":"The intrusion detection systems gained major significance in the field of internet of things (IoT) as the communicating entities could reach thousands of nodes. An intrusion detection system (IDS) that uses a hybrid learning approach, consists of two stages of detection, local and global. The data collection for the classification purposes at the local detection phase is intended to mimic the network behavior rather than node behavior and the ability to infer the state of the node. A scheme based on obtaining datasets related to the packet counts for normal and malicious cases, collected using promiscuous mode, is adopted in the network. The local detection is conducted by the dedicated sniffers (DS) where each DS uses supervised learning approach based on decision trees to generate correctly classified instances (CCIs). The global stage collects the CCIs sent from the dedicated sniffers (DS) to the super node (SN) and applies an iterative linear regression to generate a time-based profile called the accumulated measure of fluctuation (AMoF) for malicious and normal nodes. A profile of a malicious and a normal node is obtained, and an anomaly is detected after three iterations (processed samples).","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123844033","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":"Hybrid precoding for mmWave massive MIMO systems with generalized triangular decomposition","authors":"Y. Kabalci, H. Arslan","doi":"10.1109/WAMICON.2018.8363891","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363891","url":null,"abstract":"Hybrid precoding schemes have recently gained a great attention for millimeter wave (mmWave) massive multiple-input-multiple-output (massive MIMO) communication systems because of offered cost and low-power consumption advantages. The singular value decomposition (SVD) method which is exploited in the design of hybrid precoding causes several problems on system design, especially on bit allocation, precoding and equalizing processes. On the other hand, the previous works show that generalized triangular decomposition (GTD) method can present asymptotically optimal performance in conventional MIMO systems. In the light of this, we propose the use of GTD method for designing hybrid precoding operating in mmWave massive MIMO systems. The proposed design is analyzed via performed simulation studies including different system configurations. Moreover, the archived results are compared with the standard orthogonal matching pursuit (OMP) algorithm based hybrid precoding scheme. The simulation results show that the proposed hybrid precoding scheme can reach up to the performance of optimal precoding scheme.","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"27 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":"115993921","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}