Deadline-Aware UE Service Scheduling In Mobile-Relay-Augmented Cellular Networks

Connection and Service Request (CSR) scheduling affects the performance of a Mobile Relay Node (MRN) in relay-assisted LTE network in terms of crucial Quality-of-Servce (QoS) metrics such as the blocking probability and the system's response time. In this paper, a novel Deadline-constrained Connection and service Request Scheduling (DCRS) scheme is proposed with the objective of improving an MRN's performance in terms of the above-mentioned metrics. A stochastic queueing model is formulated for the purpose of capturing the MRN's behavioral dynamics and evaluating its performance as it operates under DCRS. Simulations are conducted in order to verify the model's results' validity and accuracy. Moreover, the MRN performance achieved under DCRS is compared to that achieved under the typically adopted First-Come-First-Servce (FCFS) scheme. Results indicate that DCRS remarkably outperforms FCFS.