Wireless Communications Technologies ( 16 : 332 : 546 ) Instructor : Professor Narayan Mandayam Spring 2005 Lecture # 23 ( on

INTRODUCTION In this lecture, we continue on radio resource management in wireless networks, and are focused on the resource allocation algorithm. Firstly, we discuss the goal of optimum regarding resource allocation, based on which we define the assignment failure rate and the instantaneous capacity of a wireless system. We also discuss two kinds of channel allocation: Fixed Channel Allocation (FCA) and Dynamic Channel Allocation (DCA). And then we study power control, including the SIR requirement and a theorem (and a corollary) for solving the problem. Distributed power control algorithm, specially the per-user version is presented. We also go through some power control models such as the minimum power assignment, macro diversity and multiple connection reception, and a unified framework for uplink power control. Finally power control in practice is discussed and the block diagram is given.