Mathematical Problems in Engineering / 2017 / Article / Fig 1

Research Article

Delay-Optimal Scheduling for Two-Hop Relay Networks with Randomly Varying Connectivity: Join the Shortest Queue-Longest Connected Queue Policy

Figure 1

Two-hop queueing network model. The system consists of one source queue (SQ) and relay queues (RQs). Only one customer can be served at any instant (half duplex). Binary variable represents the connectivity of the th RQ, .

We are committed to sharing findings related to COVID-19 as quickly and safely as possible. Any author submitting a COVID-19 paper should notify us at to ensure their research is fast-tracked and made available on a preprint server as soon as possible. We will be providing unlimited waivers of publication charges for accepted articles related to COVID-19. Sign up here as a reviewer to help fast-track new submissions.