![]() The modified deficit round-robin scheme then addresses how to minimize delay on top of the DRR scheme. Although VoIP streams need both bandwidth and delay guarantees, we can think of an alternate approach of providing a bandwidth guarantee with minimizing delay. This is helpful, for example, in handling VoIP packets. Modified deficit round-robin (MDRR) is a variation of DRR that also addresses delay minimization for some traffic streams. Read moreĭeep Medhi, Karthik Ramasamy, in Network Routing (Second Edition), 2018 17.1.6 Modified Deficit Round-Robin Queueing Finally, it can be seen that the maximum transmit power and energy consumption constraints are coupled and both need to be increased to fully lower the delay. Moreover, it is clear that the proposed joint resource allocation schemes significantly outperform the baseline ones with fixed computing resource allocation. Simulation results show the obtained performance gain when employing more antennas at the BS, especially under imperfect CSI. For the imperfect CSI case, the formulated nonconvex problem has been handled by the successive convex approximation technique. For the perfect CSI case, we have derived a semi-closed-form solution, and further proposed an optimal and low-complexity algorithm. The formulated problem requires a joint radio and computational resource allocation. In this section, we have considered the overall delay minimization among all users for a massive MIMO assisted MEC system under maximum transmit power and energy consumption constraints. Wanming Hao, in Intelligent Sensing and Communications for Internet of Everything, 2022 7.3.6 Conclusion Fog/edge computing technology and big data system with IoT
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