Optimal power control and opportunistic fair scheduling in TH-PPM UWB ad-hoc multimedia networks
* Corresponding Author: Yang Liu; Email: yangliu@eee.hku.hk This research was supported by a grant from the Research Grants Council of the HKSAR under project number HKU7157/04E. Abstract—Ultra wideband (UWB) systems are widely envisioned to be the next important wireless infrastructure for efficient short-range communications and mobile applications. Indeed, forming ad hoc networks among various UWB enabled devices is considered as an important mobile data exchange operating environment. In our study, we explore the problem of jointly optimizing the power level and data rate used in the devices in such a UWB based ad hoc network. We propose a practical optimization scheme and decompose the optimization problem into power control for real-time applications and opportunistic scheduling for non-real-time applications. Efficient optimization algorithms are designed to meet different fairness requirements and numerical results are obtained.