TY - JOUR
T1 - Outage Performance of Relay-Assisted Single-and Dual-Stage NOMA over Power Line Communications
AU - Ramesh, Roopesh
AU - Gurugopinath, Sanjeev
AU - Muhaidat, Sami
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2021
Y1 - 2021
N2 - In this paper, we analyze the performance of relay-assisted, single-stage (SS) non-orthogonal multiple access (NOMA) and dual-stage (DS) NOMA power line communication systems. Specifically, we derive closed form expressions for the outage probabilities of the SS NOMA and DS NOMA schemes. Subsequently, we formulate optimization problems and obtain closed-form solutions for the optimal power allocation coefficients of the SS NOMA and DS NOMA schemes, such that the probability of overall outage is minimized. The accuracy of our analysis and the tightness of the approximations employed are validated through Monte Carlo simulations and numerical techniques. Moreover, we show that the DS NOMA scheme outperforms the SS NOMA scheme, in terms of the overall outage probability.
AB - In this paper, we analyze the performance of relay-assisted, single-stage (SS) non-orthogonal multiple access (NOMA) and dual-stage (DS) NOMA power line communication systems. Specifically, we derive closed form expressions for the outage probabilities of the SS NOMA and DS NOMA schemes. Subsequently, we formulate optimization problems and obtain closed-form solutions for the optimal power allocation coefficients of the SS NOMA and DS NOMA schemes, such that the probability of overall outage is minimized. The accuracy of our analysis and the tightness of the approximations employed are validated through Monte Carlo simulations and numerical techniques. Moreover, we show that the DS NOMA scheme outperforms the SS NOMA scheme, in terms of the overall outage probability.
KW - Cooperative relaying
KW - non-orthogonal multiple access (NOMA)
KW - outage probability analysis
KW - power line communication (PLC)
KW - single- and dual-stage NOMA
UR - http://www.scopus.com/inward/record.url?scp=85107176927&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2021.3082169
DO - 10.1109/ACCESS.2021.3082169
M3 - Article
AN - SCOPUS:85107176927
SN - 2169-3536
VL - 9
SP - 86358
EP - 86368
JO - IEEE Access
JF - IEEE Access
M1 - 9437168
ER -