Throughput performance of an energy-efficient protocol for two-hop cognitive networks with energy harvesting relays

We consider a two-hop underlay cognitive radio network (CRN) in which the secondary relay (SR) harvests energy from the secondary source (SS) before commencing two-hop transmission. During the energy harvesting phase, energy is transmitted in packets of small size followed by a silent intervals in which the relay provides a one-bit feedback. Without any need to pass channel estimates to a central node, this model allows for charging time to be optimally varied. Proposed scheme is shown to be energy efficient. A closed-form expression for the throughput is derived. Derived analytical throughput expression is verified by the computer simulations.

[1]  Cyril Leung,et al.  Wireless Energy Harvesting and Spectrum Sharing in Cognitive Radio , 2014, 2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall).

[2]  Martin Haenggi,et al.  Stochastic Geometry for Wireless Networks , 2012 .

[3]  Pingzhi Fan,et al.  On the Performance of Non-Orthogonal Multiple Access in 5G Systems with Randomly Deployed Users , 2014, IEEE Signal Processing Letters.

[4]  Pingzhi Fan,et al.  Outage Performance of Cognitive Relay Networks With Wireless Information and Power Transfer , 2016, IEEE Transactions on Vehicular Technology.

[5]  Cyril Leung,et al.  Wireless Energy Harvesting in a Cognitive Relay Network , 2016, IEEE Transactions on Wireless Communications.

[6]  Sanjay Dhar Roy,et al.  Throughput of a Cognitive Radio Network With Energy-Harvesting Based on Primary User Signal , 2016, IEEE Wireless Communications Letters.

[7]  Milton Abramowitz,et al.  Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables , 1964 .

[8]  Andrea J. Goldsmith,et al.  Breaking Spectrum Gridlock With Cognitive Radios: An Information Theoretic Perspective , 2009, Proceedings of the IEEE.

[9]  Shankar Prakriya,et al.  Outage performance of dynamic spectrum access systems with energy harvesting transmitters , 2014, 2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication (PIMRC).

[10]  Ali A. Nasir,et al.  Relaying Protocols for Wireless Energy Harvesting and Information Processing , 2012, IEEE Transactions on Wireless Communications.

[11]  Bo Yang,et al.  Fully Distributed Channel-Hopping Algorithms for Rendezvous Setup in Cognitive Multiradio Networks , 2016, IEEE Transactions on Vehicular Technology.