Power Consumption Minimization for UL PD-NOMA with Finite Blocklength Shell Codes

Power domain Non-orthogonal multiple access (PDNOMA) has been widely considered to achieve the efficient short packet transmission (SPT). The most significant characteristic of SPT is that the finite blocklength coding is adopted, yielding a capacity backoff referred to as channel dispersion. However, the existing PD-NOMA schemes were widely investigated with the finite blocklength i.i.d. coding, which results in a large channel dispersion that dramatically decreases the capacity. To tackle this problem, we aim for investigating the PD-NOMA with the finite blocklength shell coding, which provides a smaller dispersion compared with the finite blocklength i.i.d. coding. On this basis, considering the demands of green communications, we conduct resource allocation to minimize the power consumption for the PD-NOMA scheme. Finally, simulation results verify the effectiveness of the proposed methods and compare the performance of the schemes with different coding strategies.