Cooperative Spectrum Sensing (CSS) is an effective approach to overcome the impact of multi-path fading and shadowing issues. The reliability of CSS can be severely degraded under Byzantine attack, which may be caused by either malfunctioning sensing terminals or malicious nodes. Almost, the previous studies have not analyzed and considered the attack in their models. The present study introduc...

Cognitive radio (CR) network is an excellent solution to the spectrum scarcity problem. Cooperative spectrum sensing (CSS) has been widely used to precisely detect of primary user (PU) signals. The trustworthiness of the CSS is vulnerable to spectrum sensing data falsification (SSDF) attack. In an SSDF attack, some malicious users intentionally report wrong sensing results to cheat the fusion c...

Low-power wide-area network technologies such as long-range (LoRaWAN) are promising for collecting low-rate monitoring data from geographically distributed sensors, in which timestamping the sensor is a critical system function. This article considers synchronization-free approach to LoRaWAN uplink based on signal arrival time at gateway, well matches LoRaWAN’s one-hop star topology and release...

In this paper we present a mix-type remote electronic voting system belonging to the “proof of product with redundancy” paradigm. Votes are composed using a redundancy system that permits to prove the correct composition and plaintext awareness of votes at vote reception and check the validity of the mixing operation while preventing some privacy or denial of service attacks that were possible ...