HYGIENE Scheduling for OFDMA Wireless Cellular Networks

Packet scheduling algorithms are viewed as one of the key mechanisms for increasing the diversity order, robustness and effectiveness of a wireless multi-user communication system. Traditional packet scheduling are mainly designed for homogeneous single traffic scenarios. In this paper we present a novel scheduling algorithm that support real-time (RT) and non real-time (NRT) traffics at the same time. Our goal is to maximize the achievable cell traffic load while keeping the active users satisfied. Simulation results show that in an OFDMA air interface based communication system our proposed HYGIENE scheduler is able to give better performance than existing packet scheduling algorithms such as maximum channel to interference ratio (MCI), proportional fair (PF), Earliest Deadline First (EDF) and Modified Largest Weighted Deadline First (MLWDF).