Balancing supply and demand of bandwidth in wireless cellular networks: utility maximization over powers and rates

摘要: In wireless cellular networks and local area networks, nonlinear network utility maximization need to be conducted over both user rates transmit powers. For each of the three cases considered in this paper, we present an algorithm that converges jointly optimal pair rate vector power vector. simple case when data are not limited by interferences, for example single-cell downlink transmissions, propose 1, which is iterative bidding mechanism between base station mobile users, where knowledge about channel conditions individual functions only needed locally at but station. problem complicated coupling powers rates, interference among Through centralized steps, 2, a joint global optimum solution space We then consider end-to-end transmissions traverse fading channels many hops wired links shared other traffic. There tradeoff attaining air-interface capacity hop controlling congestion backbone wide network. formulate resource allocation such hybrid obtain Pareto multi-access maximizing utility.