Multi-User Buffer Control with Drift Fields

Multi-user buffer control is a closed-loop transmission strategy to ensure users buffers do not underflow or overflow. The dynamic scheme requires buffer state information and cooperation among transmitters. By altering the average arrival rate to users, the transmitters cause users´ buffer levels to drift away from underflow and overflow conditions. The paper presents three schemes that suggest coordination among transmitters significantly reduces the resource requirement to ensure multi-user buffer stability.