A modified vacation queueing model and its application on the Discontinuous Reception power saving mechanism in unreliable Long Term Evolution networks

In this paper, Discontinuous Reception, a power savingmechanism in Long Term Evolution wireless networks, is analytically investigated in the presence of transient faults by using an unreliableM/G/1 queue with multiple vacations. System failures may occur either due to transient faults in themobile device or due towireless link errors.When a failure occurs, the device may request the retransmission of the packet after a recovery period. In such a case, the power consumption will be further increased. Steady state analysis is presented, and decomposition results are discussed. Energy and performance metrics are obtained, and used to provide useful numerical results. © 2014 Elsevier B.V. All rights reserved.