摘要
为了使调度算法更好地实现高吞吐量、高公平性和低复杂度,修改传统的多载波调度算法,提出4种复杂度较低的新算法。仿真结果表明,在复杂度相似的情况下,新算法的吞吐量和公平性均高于原有算法,可以通过调整参数在公平性和吞吐量之间进行权衡。
Schedule algorithm closely relates to the performance of Orthogonal Frequency Division Multiplexing(OFDM) system. The key difficulties lie in achieving high throughput, high GPF and low complexity of the schedule system simultaneously. This paper proposes four low-complexity multicarrier schedule algorithms through revising the conventional multicarrier schedule algorithms. Simulation results show that under the similar complexity, the throughput and GPF of the algorithms are improved in different extent, and weighed by adjusting the variables.
出处
《计算机工程》
CAS
CSCD
北大核心
2009年第23期84-87,共4页
Computer Engineering
基金
上海市科委基金资助项目"新一代无线通信系统组网关键技术研究"(08DZ2200800)
上海市科委国际合作基金资助项目"OFDM系统协同组网技术研究"(08530706200)
关键词
多载波调度
正交频分多路复用
比例公平
multicarrier schedule
Orthogonal Frequency Division Multiplexing(OFDM)
Proportional Fairness(PF)