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In this paper, we consider the problem of admission control in 5G networkswhere enhanced mobile broadband (eMBB) users and ultra-reliable low-latencycommunication (URLLC) users are coexisting. URLLC users require low latency andhigh reliability while eMBB users require high data rates. Thus, it isessential to control the admission of eMBB users while giving priority to allURLLC users in a network where both types of users are coexisting. Our aim isto maximize the number of admitted eMBB users to the system with a guaranteeddata rate while allocating resources to all URLLC users. We formulated this asan l_0 minimization problem. Since it is an NP-hard problem we have usedapproximation methods and sequential convex programming to obtain a suboptimalsolution. Numerically we have shown that the proposed algorithm achievesnear-optimal performance. Our algorithm is able to maximize the number ofadmitted eMBB users with an optimal allocation of resources while givingpriority to all URLLC users.

Admission Control in 5G Networks for the Coexistence of eMBB-URLLC Users