Showing 61 - 80 results of 187 for search 'IEEE Wireless Communications', query time: 0.08s Refine Results
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    MAC Protocols Used by Wireless Sensor Networks and a General Method of Performance Evaluation by Joseph Kabara, Maria Calle

    Published 2012-01-01
    “…Many researchers employ IEEE802.15.4 as communication technology for wireless sensor networks (WSNs). …”
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    Exploiting Multiple Channels for Low Latency and Semireliable Broadcasting in Cognitive Wireless Sensor Networks by Tae-Sung Kim, Sok-Hyong Kim, Bo-Kyum Kim, Young-Yong Kim

    Published 2015-10-01
    “…Mobile sensor nodes support disaster relief and recovery by means of real-time bidirectional communication. For its high data rate requirement, IEEE 802.11 specification can be used for the radio interface of sensor nodes, and the nodes can be equipped with multiple 802.11 radios to utilize multiple channels and link data rates. …”
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    Receiver scheme of rake equalization for 60GHz pulse communication system by Xian CHEN, Xuehua LI

    Published 2016-01-01
    “…Dispersion of the signal energy and the inter symbol interference(ISI)is caused by the multipath fading in 60GHz pulse communication environment.To solve this problem,the severity of the ISI in the system was analyzed,and the method to eliminate interference was studied.Based on the 60GHz wireless channel model established by IEEE 802.15.3c,the simulation platform of 60GHz pulse communication system was built.Theoretical analysis and numerical simulation of ISI in the system were carried out,and a receiver scheme of combining Rake receiver and equalizer was designed.Results show that,the two taps MRC-Rake receiver module combined with MMSE linear equalization module can not only improve the signal energy by multipath diversity,but also eliminate ISI.The performance of the system was improved without increasing the complexity.The scheme provides a reference for the design of 60GHz pulse communication system in the future.…”
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    A Novel Wideband Circularly Polarized Antenna for RF Energy Harvesting in Wireless Sensor Nodes by Nhu Huan Nguyen, Thi Duyen Bui, Anh Dung Le, Anh Duc Pham, Thanh Tung Nguyen, Quoc Cuong Nguyen, Minh Thuy Le

    Published 2018-01-01
    “…The wideband circularly polarized antenna with 2.4 GHz of bandwidth is a promising solution for wireless communication system such as tracking or wireless energy harvesting from Wi-Fi signal based on IEEE 802.11ac standard or future 5G cellular. …”
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    A cross-layer approach to message authentication based on sparse representation for wireless body area networks by Ning Wang, Weiwei Li, Ting Jiang

    Published 2017-03-01
    “…Due to personal privacy, information security is a particularly important issue in wireless body area networks. Although current communication protocol has considered the security, there is still a risk that lapses in physical layer security may be a potential threat in wireless body area networks. …”
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    Performance Evaluation of a Communication Protocol for Vital Signs Sensors Used for the Monitoring of Athletes by George Kiokes, Clio Vossou, Panagiotis Chatzistamatis, Stelios M. Potirakis, Savvas Vassiliadis, Kleanthis Prekas, Gurkan Tuna, Kayhan Gulez

    Published 2014-06-01
    “…Overtraining is an extreme state of fatigue that forces athletes to rest for several weeks having a negative impact on athlete's performance, health, and daily life. A wireless sensor network (WSN) combines embedded computing technology with communication technology in order to collect information of the network coverage area and send it to the observer. …”
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