{"title":"Design of a Circular-Patch Reflectarray for Microwave Power Transfer and Communications in Space","authors":"Emily Backer, Mohammad Alhassoun, G. Durgin","doi":"10.1109/WiSEE.2019.8920362","DOIUrl":"https://doi.org/10.1109/WiSEE.2019.8920362","url":null,"abstract":"This work presents the design and simulation of holographic reflectarrays made up of circular patches for wireless power transfer (WPT) in the Fresnel region. We simulate efficient focusing at 5.8 GHz for a 1.216m square reflectarray design at a focal distance of 10m. The example design is particularly well-suited to microwave power transfer in space, where the ratio of aperture-to-mass must be maximized.","PeriodicalId":167663,"journal":{"name":"2019 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE)","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121284531","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 Machine Learning Approach to the Estimation of Near-Optimal Electrostatic Force in Micro Energy-Harvesters","authors":"Masoud Roudneshin, K. Sayrafian-Pour, A. Aghdam","doi":"10.1109/WiSEE.2019.8920332","DOIUrl":"https://doi.org/10.1109/WiSEE.2019.8920332","url":null,"abstract":"Wearable medical sensors are one of the key components of remote health monitoring systems which allow patients to stay under continuous medical supervision away from the hospital environment. These sensors are typically powered by small batteries which allow the device to operate for a limited time. Any disruption in the battery power could lead to temporary loss of vital data. Kinetic-based micro-energy-harvesting is a technology that could prolong the battery lifetime or equivalently reduce the frequency of recharge or battery replacement. Focusing on a Coulomb-Force Parametric Generator (CFPG) micro harvesting architecture, several machine learning approaches are presented in this paper to optimally tune the electrostatic force parameter; and therefore, maximize the harvested power.","PeriodicalId":167663,"journal":{"name":"2019 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124149586","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":"Low Power Antenna Design for Free Space Optical Communications inside the Ariane 5 VEB","authors":"Christian Sánchez, S. Paul, J. Sebald","doi":"10.1109/WiSEE.2019.8920367","DOIUrl":"https://doi.org/10.1109/WiSEE.2019.8920367","url":null,"abstract":"In this paper the prototyping of a low power optical antenna is presented. This antenna is designed so that several communication protocols can be implemented and tested. A transceiver is designed and constructed using discrete commercial off-the-shelf electronic devices. Some theoretical background, simulations and practical tests are proposed and the results are finally summarized.","PeriodicalId":167663,"journal":{"name":"2019 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE)","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116145543","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":"IR-UWB Study for Intra-Satellite Wireless Communication","authors":"J. Awano, A. Tomiki, Hisashi Nishikawa","doi":"10.1109/WiSEE.2019.8920299","DOIUrl":"https://doi.org/10.1109/WiSEE.2019.8920299","url":null,"abstract":"This paper reports the prototype evaluation results of the Impulse Radio UWB (IR-UWB) module developed for an intra-satellite wireless communication system. The PN-Pulse Density Modulation (PN-PDM) scheme and the Pulse Position Modulation (PPM) scheme are adopted as our unique functions for resistance in a multipath environment, and a thermal structure model of a small satellite was used to evaluate the performance of both schemes. We have confirmed the robustness of communication by the PN-PDM scheme, realized error-free communication of 1.3 Mbps data rate, and confirmed the effectiveness of the reflection wave cancelling function.","PeriodicalId":167663,"journal":{"name":"2019 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122945691","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":"Maximizing Throughput in Deterministic and Low Latency Intra-Spacecraft UWB Sensor Networks","authors":"André Lübken, M. Drobczyk","doi":"10.1109/WiSEE.2019.8920312","DOIUrl":"https://doi.org/10.1109/WiSEE.2019.8920312","url":null,"abstract":"Sensor networks based on Impulse-Radio Ultra Wideband (IR-UWB) technology have gained traction in fields where precise localization and robust communication links are required. In spacecraft and launchers these networks can be used to connect sensors to a central on board computer or to provide a communication link between the different subsystems. This contributes to a reduced cable harness, a key driver in overall spacecraft mass and design complexity. A problem in low power wireless sensor networks is the low data throughput. This paper presents a high data throughput extension to an 802.15.4 standard compliant MAC layer for Ultra Wideband to accommodate for e.g. payload data acquisition or software update distribution to the different subsystems. Where the previous protocol allowed for a mere 3 kB/s of throughput in a typical configuration, the augmented MAC layer now is able to achieve up to 341 kB/s.","PeriodicalId":167663,"journal":{"name":"2019 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134517534","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}
J. Mitsugi, Hiromu Kamei, Yuusuke Kawakita, H. Ichikawa
{"title":"Real-Time Separation of Collided Signals in Multiple Zones Backscatter Communication System","authors":"J. Mitsugi, Hiromu Kamei, Yuusuke Kawakita, H. Ichikawa","doi":"10.1109/WiSEE.2019.8920346","DOIUrl":"https://doi.org/10.1109/WiSEE.2019.8920346","url":null,"abstract":"Backscatter communication is essential in applications where wireless and batteryless sensors are demanded. Backscatter communication system may suffer short communication range because its sensors transmit signals by means of the reflection of incident radio wave that is provided by counterpart interrogator. The use of multiple interrogators, forming multiple interrogation zones, is the usual practice to extend the range of backscatter communication system. However, if a sensor receives more than one radio waves — one from its counterpart interrogator and others from neighbor interrogators — the sensor produces modulated backscatters to all the interrogators, causing interference to neighbor interrogators. This inter-zone interference is particularly problematic when multiple sensors send stream data concurrently. This paper proposes a real-time separation of collided backscatter signals based on their statistical independence. The proposal uses a priori probability of backscatter signal to extract the independent carrier phase angles and the independent amplitudes from IQ signal observation. The measurement of channel state information with predefined symbol pattern in packet is not needed. The proposal is evaluated both in numerical simulations and a physical experiment using prototype backscatter sensors and a software-defined interrogator. The results show that collided backscatter signals can be separated in real-time without degrading the packet error rate of each signal.","PeriodicalId":167663,"journal":{"name":"2019 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133735123","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":"Effective Learning Algorithms for Search and Rescue Missions in Unknown Environments","authors":"Masoud Roudneshin, A. M. Sizkouhi, A. Aghdam","doi":"10.1109/WiSEE.2019.8920360","DOIUrl":"https://doi.org/10.1109/WiSEE.2019.8920360","url":null,"abstract":"During the last decade, there has been a huge attention on deployment of unmanned aerial vehicles (UAVs) for both civilian and military missions. Alike swarming phenomena in animals and insects, these herds of smart robots could perform complicated task when working together. However, doing so needs smart coordination between individual subsystems. In this paper, aerial coordination by a UAV (also known as aerial shepherd) for a group of unmanned ground vehicles (UGVs) is investigated. The problem is separated in two sections. In the first stage, the aerial leader learns how to find a target using both Q-Learning and DQN techniques. In the next step, the optimal path is sent through a communication link to a group of mobile robots for ground coordination. Through simulations, we study the problem in a model-free environment with existence of stochasticity in control input and the environment. Once the target has been localized, the optimal path is sent to ground mobile robots to provide rescue. The obtained results for a primitive environment indicate successful coordination of mobile robots on the ground.","PeriodicalId":167663,"journal":{"name":"2019 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124707106","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}
Hendra Kesuma, Sallar Ahmadi-Pour, Hans-Jürgen Zimmerman, Amber Joseph, P. Weis
{"title":"Ultrasonic Wireless Sensor Network for Human Habitation in Deep Space Mission","authors":"Hendra Kesuma, Sallar Ahmadi-Pour, Hans-Jürgen Zimmerman, Amber Joseph, P. Weis","doi":"10.1109/WiSEE.2019.8920364","DOIUrl":"https://doi.org/10.1109/WiSEE.2019.8920364","url":null,"abstract":"In this work we show the design and measurement of ultrasonic wireless sensor network in on-earth Columbus Module. The module is a copy of the original module attached on International Space Station (ISS) and it is usually used for testing any new hardware before launching them to the ISS. An analog mixed signal 350 nm technology Application-Specific Integrated Circuit (ASIC) was designed to handle ultrasonic modulation and signal conditioning. The sensor node comprises three pairs of ultrasonic transmitters and receivers. Smart sensors such as humidity/temperature sensor, air pressure sensor and visible/infrared light sensor are utilized to minimize power consumption, computational time and save weight. A low power micro controller ATMega238 is added to interface the smart sensors and ultrasonic ASIC. In order to achieve simple installation procedure for the astronauts, an innovative sensor node casing was designed to allow easy mounting and easy signal directing when attached to the wall. One access point and two sensor nodes were built for testing the signal range on various location in the module. During the test, the ultrasonic signal managed to propagate and received within the entire module. A constant speech signal was added (e.g. human conversation in the background) in order to simulate real mission condition. The power consumption of the sensor node in active/communication mode is less than 60 mW that ensures high durability. The total weight of the sensor node including 400 mAh battery, casing and sensor node holder is less than 50 g.","PeriodicalId":167663,"journal":{"name":"2019 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124511404","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}
Guéréguin Der Sylvestre Sidibé, A. Surier, Raphaël Bidaud, G. Delisle, N. Hakem, M. Servajean, B. Rmili, G. Chalhoub, M. Misson
{"title":"Use of a Switched Beam Antenna in a Star Wireless Sensor Network for Data Collection: Neighbor Discovery Problem","authors":"Guéréguin Der Sylvestre Sidibé, A. Surier, Raphaël Bidaud, G. Delisle, N. Hakem, M. Servajean, B. Rmili, G. Chalhoub, M. Misson","doi":"10.1109/WiSEE.2019.8920303","DOIUrl":"https://doi.org/10.1109/WiSEE.2019.8920303","url":null,"abstract":"Switched beam antennas (SBA) offer many advantages when used in confined and obstructed environments that represent a difficult radio propagation environment. However to benefit from these antennas, some low layer mechanisms such as MAC (Medium Access Control) protocols, routing protocols and neighbor discovery protocols which are primarily designed to work with omnidirectional antennas need to be redesigned. In this paper, a new neighbor discovery method based on time slotting and random algorithm is proposed. The proposed method is designed for a sink node in a star network and equipped with a switched beam antenna to discover its neighboring nodes. The proposed protocol was implemented in Contiki OS, and several simulations were performed using Cooja. Results show that our protocol gives better performance in terms of delay.","PeriodicalId":167663,"journal":{"name":"2019 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE)","volume":"275 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116668332","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}
Abigail J. Kragt Finnell, Sawyer H. Powell, Penghui Heng, P. Schubert
{"title":"Spacetenna Flatness and Error Correction","authors":"Abigail J. Kragt Finnell, Sawyer H. Powell, Penghui Heng, P. Schubert","doi":"10.1109/WiSEE.2019.8920300","DOIUrl":"https://doi.org/10.1109/WiSEE.2019.8920300","url":null,"abstract":"Wireless Power Transfer (WPT) from space-to-earth at a large scale will not be possible until the Side Lobe Levels (SLL) are reduced many orders of magnitude from the current technology available today. To accomplish this, careful design of the transmitting antenna (spacetenna) is imperative. Any module failures or errors in connectivity, including askew angles between adjacent sandwich modules, reduce the effectiveness of the antenna design and thereby increase SLL. This work examines two interrelated issues; error detection and repair, and spacetenna flatness correction. Multiple different designs of sandwich module mechanical connections, wiring, and control are examined. The results of the analysis and best options are presented in order to facilitate for ultra-low SLL for use in Space Solar Power for the benefit of humanity and the environment.","PeriodicalId":167663,"journal":{"name":"2019 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132013566","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}