Performance Analysis of Congestion Control for Massive MTC Networks
This paper describes scheduling and processing of congested packets in massive Machine Type Communications (MTC). When there are too many uplink packets, it may cause congestions in the Radio Access Network (RAN) and the Evolved Packet Core (EPC). To solv
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Abstract. This paper describes scheduling and processing of congested packets in massive Machine Type Communications (MTC). When there are too many uplink packets, it may cause congestions in the Radio Access Network (RAN) and the Evolved Packet Core (EPC). To solve this problem, we propose a Critical Random Early Detection (CRED) method to compute the current average queue length for each process to determine whether a packet needs to be discarded or not to prevent from congestions. The proposed method is evaluated through NS-2 simulations. Keywords: Machine Type Communications (MTC) Congestion
Cellular network
1 Introduction The term, Machine Type Communications (MTC), comes from the 3GPP (Third Generation Partnership Project) specification [1]. Nowadays, sensors, actuators, and RFID/NFC, are used to collect information and to bring convenience to our daily life, making the number of these devices increases exponentially in recent years. Once generated sensed data, those devices are scheduled to report their data to an evolved NodeB (eNB). Given the number of the devices is large, it may cause significant congestions and latency in the network. In this paper, we focus on designing the management mechanism of scheduling the MTC devices transferring the packets to eNBs and Packet Data Network Gateways (P-GWs). To achieve and solve the congestion problem, we propose the Critical Random Early Detection (CRED) Method to decide if an MTC packet should be discarded for releasing network congestion. Our method is based on three steps to prevent the network congestion: (i) According to the MTC devices at the fixed position periodically sends data to eNB and P-GW, the sender packet time must match service time at eNB and P-GW; (ii) According to the data urgent and real-time priority to give higher priority; and (iii) use Early Detection Gateways for Congestion Avoidance [4] to migrate the MME/S-GW by drop congestion MTC packets at the radio access network (eNBs). It drops congestion packets by computing the average queue length of the arriving packets.
© Springer Nature Singapore Pte Ltd. 2017 J.J. (Jong Hyuk) Park et al. (eds.), Advanced Multimedia and Ubiquitous Engineering, Lecture Notes in Electrical Engineering 448, DOI 10.1007/978-981-10-5041-1_2
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About the scheduling related mechanism, we know that in Loss type queuing system queue space is zero and does not allow queuing, when the MTC device arrives OM2M gateway. If all channels (channel) are occupied, that is, the MTC device transmitted the data packet to be discarded, and assume no re-transmission. Another scheduling related mechanism is waiting type queuing system; we list them as follows: FCFS (First Come First Service): According to the order of the queue, the system first serves the jobs in front of the queue. LCFS (Last Come First Service): According to the order of the queue, the system last serves the jobs in front of the queue. PS (priority): The system serves the jobs based on their priority. SIRO (Service
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