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Wireless energy harvesting in a decode-and-forward (DF) relay network is studied. The relay node is energy constrained and harvests energy from the radio frequency (RF) signal of the source node. The RF signal also carries information from the source to be forwarded via the relay to a destination in the presence of interference from unknown sources. We study the performance of three relaying protocols,...
Wireless energy harvesting is regarded as a promising energy supply alternative for energy-constrained wireless networks. In this paper, a new wireless energy harvesting protocol is proposed for an underlay cognitive relay network with multiple primary user (PU) transceivers. In this protocol, the secondary nodes can harvest energy from the primary network (PN) while sharing the licensed spectrum...
A wireless energy harvesting protocol is proposed for a decode-and-forward relay- assisted secondary user (SU) network in a cognitive spectrum sharing paradigm. An expression for the outage probability of the relay-assisted cognitive network is derived subject to the following power constraints: 1) the maximum power that the source and the relay in the SU network can transmit from the harvested energy,...
centralized trust-based collusion attack strategy in conjunction with an integer linear programming is proposed to compromise the decision of the fusion center in a two-phase energy efficient collaborative spectrum sensing (CSS) strategy, namely EE-CSS, which was discussed in [1]. The proposed strategy aims to attack only when it is likely to compromise the decision of the fusion center (FC). The...
An energy efficient collaborative spectrum sensing (EE-CSS) protocol, based on trust management, is proposed. The protocol reduces the total number of sensing reports exchanged between the secondary users (SUs) and the secondary user base station (SUBS) when compared to a traditional collaborative spectrum sensing (T-CSS) protocol in which each SU transmits a sensing report to the SUBS. In addition,...
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