Search

This paper investigates the joint effects of in-phase and quadrature-phase imbalance (IQI) and imperfect successive interference cancellation (ipSIC) on the cooperative Internet of Things (IoT) nonorthogonal multiple access (NOMA) networks where the Nakagami-m fading channel is taken into account. The closed-form expressions of outage probability for the far and near IoT devices are derived to evaluate the outage behaviors. For deeper insights of the performance of the considered system, the approximate outage probability and diversity order in high signal-to-noise ratio (SNR) regime are obtained. In addition, we also analyze the throughput and energy efficiency to characterize the performance of the considered system. The simulation results demonstrate that, compared with IQI, ipSIC has a greater impact on the outage performance for the near-IoT-device of the considered system. Furthermore, we also find that the outage probabilities of IoT devices can be minimized by selecting a specific power allocation scheme.

Additional file 2. Studies listed in the PEDro database in which the efficacy of non-pharmacological, conservative treatments in the management of low back pain was compared with the efficacy of pharmacological treatments and the combination thereof.

Additional file 3. Outcome of the present study of the subgroup of patients with Pain Self-Efficacy Questionnaire (PSEQ) score < 50 at baseline (these patients could have reached the minimal clinically important difference of the PSEQ score when treating chronic nonspecific low back pain).

Additional file 1. Studies on radial extracorporeal shock wave therapy and focused extracorporeal shock wave therapy for nonspecific low back pain that were published so far.