Joint subcarrier channel and time slots allocation algorithm in OFDMA passive optical networks
Joint subcarrier channel and time slots allocation algorithm in OFDMA passive optical networks
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DOI：
10.1016/j.optcom.2012.09.032
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发表时间：
2013-01
影响因子：
2.4
通讯作者：
Meihua Bi;S. Xiao;Li Wang
中科院分区：
文献类型：
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作者：
Meihua Bi;S. Xiao;Li Wang
研究了正交频分复用接入无源光网络（OFDMA-PON）中的上行资源分配问题。分析了一个考虑子载波信道利用率和总授权时间的分配问题。最短请求优先调度算法（SRF）和贪婪调度算法（GSA）的演示和评估通过模拟。结果表明，与传统的序列方案相比，该算法具有更小的TGT和更高的信道利用率。
This paper investigates upstream resource allocation problem in Orthogonal Frequency Division Multiplexing Access Passive Optical Networks (OFDMA-PON). One assignment problem with subcarrier channel utilization and Total Grant Time (TGT) is analyzed and formulated. The Shortest Request First Scheduling (SRF) algorithm and Greedy Scheduling Algorithm (GSA) are demonstrated and evaluated through simulations. The results show that the proposed algorithms achieve less TGT and higher channel utilization compared with traditional sequence scheme.