Congestion Control Mechanisms for 4G Random Access Channel (RACH): A Survey

Magbo P.C., Chukwudi P.C., Abubakar A.

Telecommunication systems have evolved from various generations; this evolution aimed at improving the rate of information transfer and communication from one place to another. One of the evolutions in communications is the Long-term Evolution Advanced (LTE-A), also known as the fourth-generation network (4G). The LTE-Advanced, which is a wireless cellular network, offers tremendous services in terms of providing quality of service, security, and improved mobility when compared to the other generation network that predates it. Machine to Machine communications explores the LTE-Advanced technology to supports the massive connection of devices with little or no human interaction.  However, one of the challenging issues of Machine-to-Machine communication is congestion. Congestion limits the access of these multiple devices to the network and reduces their response time. This paper presents a survey of different mechanisms that various researchers have proposed over the years to solve the issue of congestion experienced when multiple devices want to have access to the base station (also known as eNodeB).

https://dx.doi.org/10.31873/IJEAS.6.12.02