Performance analysis of PF, M-LWDF and EXP/PF packet scheduling algorithms in 3GPP LTE downlink
Performance analysis of PF, M-LWDF and EXP/PF packet scheduling algorithms in 3GPP LTE downlink
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DOI：
10.1109/atnac.2014.7020879
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发表时间：
2014-11
期刊：
影响因子：
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通讯作者：
F. Afroz;K. Sandrasegaran;P. Ghosal
中科院分区：
文献类型：
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作者：
F. Afroz;K. Sandrasegaran;P. Ghosal
本文研究了下行长期演进（LTE）系统中比例公平（PF）、最大加权延迟优先（M-LWDF）和指数/比例公平（EXP/PF）分组调度算法的性能。性能评估是在具有干扰环境的单小区中进行的，同时在 10 至 80 范围内增加用户数量（情况 1），并在 [3, 120] km/h 范围内改变用户速度（情况 2）。结果表明，在案例1中，M-LWDF在平均吞吐量、频谱效率、分组时延、丢包率（PLR）和公平性指标方面优于其他两种算法；在案例2中，随着用户速度的增加，模拟调度算法的性能明显下降，并且M-LWDF在平均吞吐量、频谱效率、PLR和延迟方面优于其他两种算法。
In this paper, the performance of Proportional Fair (PF), Maximum-Largest Weighted Delay First (M-LWDF) and Exponential/Proportional Fair (EXP/PF) packet scheduling algorithms has been investigated in the downlink Long Term Evolution (LTE) system. The performance evaluation is conducted in single cell with interference environment while increasing number of users in the range of 10 to 80 (Case 1) and varying users' speed in the range [3, 120] km/h (Case 2). Results show that in Case 1, M-LWDF outperforms other two algorithms in terms of average throughput, spectral efficiency, packet delay, packet loss ratio (PLR), and fairness index, and in Case 2, the performance of simulated scheduling algorithms drops noticeably with increased users' speed and M-LWDF outperforms other two algorithms in terms of average throughput, spectral efficiency, PLR, and delay.