Combinatorics

Channel (broadcasting)

Spectral efficiency

Topology (electrical circuits)

Imperfect

Mathematics

Beamforming

Algorithm

Ergodic theory

Engineering

Mathematical analysis

Telecommunications link

Philosophy

Signal-to-noise ratio (imaging)

Chemistry

Electronic engineering

Noma

Outage probability

Interference (communication)

Computer science

Linguistics

Fading

Single antenna interference cancellation

Biochemistry

Decoding methods

Quadrature (astronomy)

Telecommunications

Upper and lower bounds

Duplex (building)

IEEE Wireless Communications Letters

The performance of full-duplex (FD) cooperative non-orthogonal multiple access (C-NOMA) relaying systems in the presence of in-phase and quadrature-phase imbalance (IQI) and imperfect successive interference cancellation (ipSIC) is analyzed and evaluated. In particular, by considering two classes of users located far from and near to the information source, closed-form exact and analytical approximate expressions for the outage probability (OP) and ergodic sum rate (ESR), respectively, are derived. The accuracy of the analytical approach is verified by computer simulations which have shown that for both C-NOMA and equivalent OMA systems IQI has a deleterious effect on their OP and ESR performance in moderate and high signal-to-noise ratio (SNR) regions and the OP of C-NOMA is always slightly lower than that of the traditional OMA. Additionally, comparisons with equivalent half-duplex (HD) C-NOMA schemes have revealed that for the far user the FD C-NOMA scheme is less sensitive to ipSIC.

Full-Duplex Cooperative NOMA Relaying Systems With I/Q Imbalance and Imperfect SIC