A Novel RACH Mechanism for Massive Access of Differentiated M2M Services in 5G/HetNets

Abstract : Machine to Machine, (M2M) is an emerging technology in communication system and networking research area. It is also referred to as Machine Type Communication (MTC). The M2M communication is considered as an indispensable part of Internet of Thing (IoT). One of the major challenge of incorporating MTC devices into 5G Heterogeneous Network (HetNets) is to overcome the overload problem caused by the huge number of concurrent and ubiquitous access attempts of MTC devices. When differentiated M2M services coexist, such as emerging alerting and regular monitoring services, the problem becomes more and more complicated and challenging. This is because emerging alerting services are High – Priority (HP) services, they need to access to the Base Station within a short stipulated time frame Whereas regular monitoring services are Low-Priority (LP) services, they get much fewer chance to access the network. To conquer the problem, we propose an efficient Random Access Channel (RACH) mechanism for massive access of differentiated M2M services. Our solution aims at balancing the random access intensity among cells according to M2M traffic category. Simulation results were done for testing the effectiveness of our proposed mechanism and show that using a base station (BS) selection method and tacking into account differentiated M2M services can increase the access success probability and reduce overload as well as improve throughput while satisfying the load balancing between BSs.
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  • HAL Id : hal-01775824, version 1

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Kaouther Taleb, Sonia Rejeb, Nazim Agoulmine, Zièd Choukair. A Novel RACH Mechanism for Massive Access of Differentiated M2M Services in 5G/HetNets. 5th International Workshop on ADVANCEs in ICT Infrastructures and Services (ADVANCE 2017), Jan 2017, Evry, France. ⟨hal-01775824⟩

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