The invention discloses a
resource allocation method of a multi-carrier
NOMA systemmulti-carrier
NOMA (Non-Orthogonal Multiple Access)
system. Under the condition of ensuring the minimum
data rate under the constraint of the
service quality of users accessed by all systems and the limitation of the total transmitting power of a
base station, a mathematical
optimization problem taking maximization of the
system sum rate as a target is constructed, and an original non-convex problem is split into two main convex sub-problems to be solved respectively. On one hand, a two-step bilateral matching
algorithm is provided for scheduling of the users and the subcarriers, and scheduling and matching of the users and the subcarriers in the
system can be quickly and effectively completed under the condition that the system performance is guaranteed. on the other hand, for the power distribution problem in the system, on the premise of ensuring that a receiving end can successfully execute a continuous serial interference cancellation (SIC) technology, a closed-
form solution of power distribution between
subcarrier multiplexing users is deduced, and water injection distribution of residual increment power between subcarriers is completed on the basis of the closed-
form solution. According to the method provided by the invention, the
throughput performance of the system is remarkably improved.