Scheduling improvement on mass M2M communications in LTE-A system

Abstract

M2M (Machine-to-machine) systems are developing very fast nowadays, and they are quite different from traditional H2H (Human-to-human) systems, which enable machines or devices to collect signals, exchange information and share the data with other machines and devices automatically to achieve certain goals without direct human intervention. Therefore, traditional resource scheduling algorithms cannot meet the needs of new M2M service transmission. LTE-A (Long Term Evolution Advanced) is one of the most important mobile communication networks in modern society, and there will be a flood of M2M terminals along with a wide range of businesses needed to join link access mobile communication networks, therefore some collisions are inevitable conflict between the businesses if we apply M2M to LTE-A directly. In this paper, the network architecture and the LTE-A terminal M2M communications infrastructure are analyzed, and then the M2M service model is established. According to the characteristics of M2M communications, we propose an improved algorithm M2MI-SA (M2M Improved Scheduling Algorithm) based on one uplink scheduling algorithm M2MA-SA [1] to improve the throughput, and reduce the delay and packet loss probability. Finally, we use MATLAB software to simulate and verify it. Keywords: M2M services; LTE-A; scheduling algorithm; system simulation