The main research objective in wireless sensor networks (WSN) domain is to develop algorithms and protocols to ensure minimal energy consumption with maximum network lifetime. In this paper, we propose a novel design ...The main research objective in wireless sensor networks (WSN) domain is to develop algorithms and protocols to ensure minimal energy consumption with maximum network lifetime. In this paper, we propose a novel design for energy harvesting sensor node and cross-layered MAC protocol using three adjacent layers (Physical, MAC and Network) to economize energy for WSN. The basic idea behind our protocol is to re-energize the neighboring nodes using the radio frequency (RF) energy transmitted by the active nodes. This can be achieved by designing new energy harvesting sensor node and redesigning the MAC protocol. The results show that the proposed cross layer CL_EHSN improves the life time of the WSN by 40%.展开更多
In this paper,an ultra-low power high-efficiency ultra-high frequency(UHF)-band wireless energy harvesting circuit based on the diode SMS7360 is designed and experimentally demonstrated,being operated in all released ...In this paper,an ultra-low power high-efficiency ultra-high frequency(UHF)-band wireless energy harvesting circuit based on the diode SMS7360 is designed and experimentally demonstrated,being operated in all released Global System for Mobile Communications(GSM)bands in China(GSM900 band:0.87-0.96 GHz and GSM1800 band:1.71-1.86 GHz).This UHF-band wireless energy harvesting circuit can harvest energy at 0.87-0.96 GHz and 1.71-1.86 GHz bands simultaneously in outdoor or indoor environment.The test results show that a radio-frequency(RF)-to-direct-current(DC)conversion efficiency in the range of 20%-63.2% is obtained for an available input power of-22 dBm to 1 dBm in GSM900 band and that in the range of 13.8%-55.5% is achieved for an available input power of-22 dBm to 3 dBm in GSM1800 band.The harvested RF energy is converted into DC energy and be stored in a 6.8 mF super capacitor through the energy management circuit.This super capacitor’s capacity is more than 20 mJ,which can meet the demand of high-speed broadband wireless communication transceivers.This ultra-low power highefficiency UHF-band wireless energy harvesting circuit could be used to achieve the low power wireless sensor network node(tag).展开更多
文摘The main research objective in wireless sensor networks (WSN) domain is to develop algorithms and protocols to ensure minimal energy consumption with maximum network lifetime. In this paper, we propose a novel design for energy harvesting sensor node and cross-layered MAC protocol using three adjacent layers (Physical, MAC and Network) to economize energy for WSN. The basic idea behind our protocol is to re-energize the neighboring nodes using the radio frequency (RF) energy transmitted by the active nodes. This can be achieved by designing new energy harvesting sensor node and redesigning the MAC protocol. The results show that the proposed cross layer CL_EHSN improves the life time of the WSN by 40%.
基金supported in part by Guangdong Provincial Science and Technology Planning Program(Industrial High-Tech Field)of China under Grant No.2016A010101036Sichuan Provincial Science and Technology Planning Program(Technology Supporting Plan)of China under Grant Nos.2016GZ0061,2016GZ0116 and 2017GZ0336+2 种基金the Fundamental Research Funds for the Central Universities under Grant No.ZYGX2016Z011the National Natural Science Foundation of China under Grant Nos.61371047,61601093 and 61701082Science and Technology on Electronic Information Control Laboratory
文摘In this paper,an ultra-low power high-efficiency ultra-high frequency(UHF)-band wireless energy harvesting circuit based on the diode SMS7360 is designed and experimentally demonstrated,being operated in all released Global System for Mobile Communications(GSM)bands in China(GSM900 band:0.87-0.96 GHz and GSM1800 band:1.71-1.86 GHz).This UHF-band wireless energy harvesting circuit can harvest energy at 0.87-0.96 GHz and 1.71-1.86 GHz bands simultaneously in outdoor or indoor environment.The test results show that a radio-frequency(RF)-to-direct-current(DC)conversion efficiency in the range of 20%-63.2% is obtained for an available input power of-22 dBm to 1 dBm in GSM900 band and that in the range of 13.8%-55.5% is achieved for an available input power of-22 dBm to 3 dBm in GSM1800 band.The harvested RF energy is converted into DC energy and be stored in a 6.8 mF super capacitor through the energy management circuit.This super capacitor’s capacity is more than 20 mJ,which can meet the demand of high-speed broadband wireless communication transceivers.This ultra-low power highefficiency UHF-band wireless energy harvesting circuit could be used to achieve the low power wireless sensor network node(tag).
