Sharif Digital Repository

In this thesis, we study optimal scheduling in a multi-hop wirelessly-powered network. We propose an online control policy for energy transfer from the energy access point to the wireless nodes and for data transfer among the nodes. With our proposed control policy, all data queues of the nodes are stable, while the average energy consumption of the network is shown to be within a bounded gap of the minimum energy required for stabilizing the network. Our proposed policy is designed using a quadratic Lyapunov function to capture the limitations on the energy consumption of the nodes imposed by their bachery levels. We show that under the proposed control policy, the bachlog level in the data... 

Nowadays, humans can travel long distances using land, air, and sea vehicles, moving from a certain origin to a desired destination. To navigate optimally and accurately, appropriate positioning methods need to be employed, which require accurate measurements of speed, acceleration, and movement angles throughout the journey. In everyday applications, nearly all inhabitants of the Earth utilize satellite positioning methods, which are easy to use and provide adequate accuracy. However, in specific scenarios for exploratory and military applications, the use of satellite localization is not feasible. The underwater scenario is one such case, where specific measurements must be taken using...