Resource Efficiency Analysis of Random Access Parallelization Technique for Cellular IoT Networks

Abstract

Recently, a random access parallelization (RAP) technique for cellular internet-of-things (IoT) networks was proposed in [1], and RA failure probability was the performance metric of interest. Even though the performance gain in terms of the RA failure probability comes from the sacrifice of the resource efficiency, this point was not well discussed in [1]. We believe that providing supplementary descriptions on the RAP technique from the viewpoint of the resource efficiency is highly required to comprehensively understand for the RAP technique. To this end, in this letter, we newly provide the mathematical analysis on the resource efficiency of the RAP technique and verify its validity through simulations. Finally, we formulate an optimization problem taking the resource efficiency into account and numerically find its solution.