Delay - Concerned Opportunistic Scheduling Algorithm in Wireless Communication Networks

In this paper we examine the packets’ delay performance under the temporal fairness opportunistic scheduling (TFOS) algorithm which is first introduced in [1]. We also simulate the earliest deadline-first (EDF) scheduling algorithm in the wireless environment. We find that the opportunistic scheduling algorithm biases the users who always experience the good channel condition in packets’ delay to improve system performance and the EDF which works well in wireline networks on delay performance [2] does not perform well in wireless communication networks. So we propose a new scheme which considers both users channel condition and packets’ delay. The simulation results show that the new scheme works well with respect to both system performance improvement and the balance of packet delay distribution.