无线通信系统中带宽扩展算法的能量效率

2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing Pub Date : 2014-07-02 DOI:10.1109/IMIS.2014.67

Yung-Fa Huang, Chuan-Bi Lin, Chia-Chi Chang, Che-Hao Li, Ching-Mu Chen

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引用次数: 0

摘要

为了提高正交频分复用(OFDM)无线通信系统的能效性能，研究了有效的带宽扩展方案。提出了三种改进的能效带宽扩展(IEEBE)方案，为用户分配可用的系统带宽。利用一种耗尽法，可以求出节能的带宽膨胀系数(BEC)。因此，IEEBE的节能性能优于相同带宽扩展(SBE)。在IEEBE的基础上，提出了对、分组和二层分组三种有效的用户BEC查找方法。仿真结果表明，两层分组(TLG)优于其他两种方法，并将能量降低因子(ERF)提高了8.9%。

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Energy Efficiency of Bandwidth Expansion Algorithms in Wireless Communication Systems

In this paper, the effective bandwidth expansion schemes are investigated to improve the performance of energy efficiency for the Orthogonal Frequency Division Multiplexing (OFDM) wireless communication systems. Three Improved Energy Efficient Bandwidth Expansion (IEEBE) schemes are proposed to assign the available system bandwidth for users. With an exhausted method, the energy efficient Bandwidth Expansion Coefficient (BEC) can be found. Thus the energy efficient performance of the IEEBE is superior to the Same Bandwidth Expansion (SBE). Three methods of pairs, grouping and two-layer grouping are proposed to effectively find the BEC for users based on IEEBE. Simulation results show that two-layer grouping (TLG) outperforms the other two methods and improves Energy Reduction Factor (ERF) by 8.9 % to the SBE.

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2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing

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