TY - JOUR
T1 - Outage Analysis of Practical FSO/RF Hybrid System With Adaptive Combining
AU - Rakia, Tamer
AU - Yang, Hong Chuan
AU - Alouini, Mohamed-Slim
AU - Gebali, Fayez
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2015/8
Y1 - 2015/8
N2 - Hybrid free-space optical (FSO)/radio-frequency (RF) systems have emerged as a promising solution for high-data-rate wireless transmission. We present and analyze a transmission scheme for the hybrid FSO/RF communication system based on adaptive combining. Specifically, only FSO link is active as long as the instantaneous signal-to-noise ratio (SNR) at the FSO receiver is above a certain threshold level. When it falls below this threshold level, the RF link is activated along with the FSO link and the signals from the two links are combined at the receiver using a dual-branch maximal ratio combiner. Novel analytical expression for the cumulative distribution function (CDF) of the received SNR for the proposed hybrid system is obtained. This CDF expression is used to study the system outage performance. Numerical examples are presented to compare the outage performance of the proposed hybrid FSO/RF system with that of the FSO-only and RF-only systems. © 1997-2012 IEEE.
AB - Hybrid free-space optical (FSO)/radio-frequency (RF) systems have emerged as a promising solution for high-data-rate wireless transmission. We present and analyze a transmission scheme for the hybrid FSO/RF communication system based on adaptive combining. Specifically, only FSO link is active as long as the instantaneous signal-to-noise ratio (SNR) at the FSO receiver is above a certain threshold level. When it falls below this threshold level, the RF link is activated along with the FSO link and the signals from the two links are combined at the receiver using a dual-branch maximal ratio combiner. Novel analytical expression for the cumulative distribution function (CDF) of the received SNR for the proposed hybrid system is obtained. This CDF expression is used to study the system outage performance. Numerical examples are presented to compare the outage performance of the proposed hybrid FSO/RF system with that of the FSO-only and RF-only systems. © 1997-2012 IEEE.
UR - http://hdl.handle.net/10754/594130
UR - http://ieeexplore.ieee.org/document/7120948/
UR - http://www.scopus.com/inward/record.url?scp=84939243924&partnerID=8YFLogxK
U2 - 10.1109/lcomm.2015.2443771
DO - 10.1109/lcomm.2015.2443771
M3 - Article
SN - 1089-7798
VL - 19
SP - 1366
EP - 1369
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 8
ER -