ABSTRACT
Resource allocation among multimedia users to meet the various quality of service (QoS) requirements in a wireless network is still a challenge. This chapter describes the attacked resource allocation problem into a network utility maximization (NUM) model, in which the objective function is formulated by the nonconcave utility functions. It proposes an approximate concave model for the original model, which is easier to solve. The chapter also proposes a gradient-type greedy iteration method to obtain the solution for the approximate model. It examines the obtained solution to the approximate model as the starting point of iteration to solve the original problem (OP). The chapter provides a flexible admission control protocol, based on the solution obtained, from the optimal algorithm that can adapt to systems with different requirement. It evaluates the theoretical analysis and an algorithm for solving the utility maximization problem is proposed. The chapter presents the admission control protocol based on the solution of the utility maximization problem.
