TY - JOUR
T1 - Performance Analysis and Optimization of Cooperative Satellite-Aerial-Terrestrial Systems
AU - Pan, Gaofeng
AU - Ye, Jia
AU - Zhang, Yongqiang
AU - Alouini, Mohamed Slim
N1 - Publisher Copyright:
© 2002-2012 IEEE.
PY - 2020/10
Y1 - 2020/10
N2 - Aerial relays have been regarded as an alternative and promising solution to extend and improve satellite-Terrestrial communications, as the probability of line-of-sight transmissions increases compared with adopting terrestrial relays. In this paper, a cooperative satellite-Aerial-Terrestrial system including a satellite transmitter (S), a group of terrestrial receivers (D), and an aerial relay (R) is considered. Specifically, considering the randomness of S and D and employing stochastic geometry, the coverage probability of R-D links in non-interference and interference scenarios is studied, and the outage performance of S-R link is investigated by deriving an approximated expression for the outage probability. Moreover, an optimization problem in terms of the transmit power and the transmission time over S-R and R-D links is formulated and solved to obtain the optimal end-To-end energy efficiency for the considered system. Finally, some numerical results are provided to validate our proposed analysis models, as well as to study the optimal energy efficiency performance of the considered system.
AB - Aerial relays have been regarded as an alternative and promising solution to extend and improve satellite-Terrestrial communications, as the probability of line-of-sight transmissions increases compared with adopting terrestrial relays. In this paper, a cooperative satellite-Aerial-Terrestrial system including a satellite transmitter (S), a group of terrestrial receivers (D), and an aerial relay (R) is considered. Specifically, considering the randomness of S and D and employing stochastic geometry, the coverage probability of R-D links in non-interference and interference scenarios is studied, and the outage performance of S-R link is investigated by deriving an approximated expression for the outage probability. Moreover, an optimization problem in terms of the transmit power and the transmission time over S-R and R-D links is formulated and solved to obtain the optimal end-To-end energy efficiency for the considered system. Finally, some numerical results are provided to validate our proposed analysis models, as well as to study the optimal energy efficiency performance of the considered system.
KW - Coverage probability
KW - energy efficiency
KW - outage probability
KW - satellite-Terrestrial communication
KW - stochastic geometry
UR - http://www.scopus.com/inward/record.url?scp=85092760148&partnerID=8YFLogxK
U2 - 10.1109/TWC.2020.3004644
DO - 10.1109/TWC.2020.3004644
M3 - Article
AN - SCOPUS:85092760148
SN - 1536-1276
VL - 19
SP - 6693
EP - 6707
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 10
M1 - 9130899
ER -