LTE中OFDMA的性能分析

2012 Third International Conference on Computing, Communication and Networking Technologies (ICCCNT'12) Pub Date : 2012-07-26 DOI:10.1109/ICCCNT.2012.6395933

S. Prasad, C. Shukla, R. F. Chisab

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引用次数: 26

摘要

长期演进技术(LTE)采用正交频分多址(OFDMA)作为下行链路向移动用户传输数据的多址接入技术，具有提高频谱效率、灵活分配用户资源、克服码间交换(ISI)和载波间交换(ICI)等缺点的优点。介绍了正交频分复用技术的特点，讨论了OFDMA技术的优缺点，重点介绍了在LTE中影响OFDMA技术性能的因素。图形结果显示了信噪比、误码率、误码率与LTE中使用的调制类型之间的关系。

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Performance analysis of OFDMA in LTE

The Long Term Evolution (LTE) takes the Orthogonal Frequency Division Multiple Access (OFDMA) as the multiple access technique for downlink to transmit data from base station to the Mobile Users (MUs) because of its ability to improve the spectrum efficiency, it has flexible user resource allocation, it can overcome the problems of Inter Symbol Interchange (ISI) and Inter Carrier Interchange (ICI). This paper introduces the properties of orthogonal frequency division multiplexing, discusses the strength, weakness of OFDMA, and highlights the factor that leverages the performance of OFDMA in LTE. The graphical result shows the relation between SNR, BER, Pe with the type of modulation used in LTE.

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来源期刊

2012 Third International Conference on Computing, Communication and Networking Technologies (ICCCNT'12)

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