Open AccessOutage of relay simultaneous wireless information and power transfer with GSC and finite storage in Nakagami‐ m fading
Author(s) -
Wang Danyang,
Yu Han,
Lei Hongjiang,
Li Tingting,
Zhang Jiliang,
Pan Gaofeng,
Chen Yunfei
Publication year - 2017
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2016.1242
Subject(s) - nakagami distribution , relay , fading , cumulative distribution function , wireless , computer science , probability density function , antenna (radio) , energy (signal processing) , signal to noise ratio (imaging) , wireless power transfer , topology (electrical circuits) , electronic engineering , power (physics) , telecommunications , mathematics , statistics , physics , engineering , channel (broadcasting) , quantum mechanics , combinatorics
In this study, a wireless powered dual‐hop relay system, which consists of a source, a destination and a relay that is equipped with N R ( N R > 1 ) receiving antennas and finite energy storage, is considered. Antenna selection scheme is employed for the relay to harvest energy from the received signals, under which the L R ( 0 < L R ≤ N R ) strongest received signals are combined for information processing and the other L Z = N R − L R copies of signals are used for energy harvesting. Considering Nakagami‐ m fading scenarios, the authors first derive the closed‐form expressions for the probability density function and the cumulative distribution function of the signal‐to‐noise ratio with generalised selection combining (GSC), and then the exact and asymptotic analytical expressions for outage probability are derived, respectively. Finally, simulation results are presented to verify the proposed analysis model.