SCIENTIA SINICA Informationis, Volume 47, Issue 4: 516-526(2017) https://doi.org/10.1360/N112016-00286

Outage performance analysis for a $K$th-best wireless-powered relaying SIMO system with non-linear energy harvester

• ReceivedJan 12, 2017
• AcceptedMar 2, 2017
• PublishedMar 27, 2017
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Abstract

This paper examines the outage performance of a wireless-powered relaying single-input, multiple-output system with non-linear energy harvesters over double cascaded Rayleigh fading channels. In particular, a source node with a single antenna transmits information to a destination node with multiple antennas through $N (N \ge 1)$ single-antenna wireless-powered relays. The destination node adopts maximal ratio combining in order to process the multiple signal copies. Each relay is conducted with a non-linear energy harvester, in which the harvested power is limited by a threshold. The relays employ power-splitting receivers to deal with the information receiving and energy harvesting, and broadcast the processed information using a decode-and-forward protocol. A $K$th-best relay in terms of outage probability (OP) is selected to assist with source-relay-destination transmission. An analytical expression is derived for the OP, and verified using Monte Carlo simulation results.

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