Throughput and energy consumption tradeoffs in pathgain-based constrained power control in ALOHA networks

Power control has been proposed as a tool to improve the performance of pac ket radio systems in terms of increased throughput and battery lifetime for mobile terminals. In this paper we study the tradeoff between transmitter dynamic range, average energy consumption and the achievable throughput for a simple pathgain based power control algorithm in a slotted ALOHA radio s ystem. The results show that increasing the throughput significantly by mea ns of transmitter power control requires only a very moderate increase in e nergy consumption and transmitter dynamic range.