文章基本信息

标题：I/Q Imbalance Problem in SC-FDMA System with DCT and DFT Basis Functions
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作者：F. S. Al-kamali ; Hefdhallah Sakran ; N. A. Odhah 等
期刊名称：Advances in Electrical Engineering
印刷版ISSN：2356-6655
出版年度：2015
卷号：2015
DOI：10.1155/2015/723805
出版社：Hindawi Publishing Corporation
摘要：In-phase/quadrature-phase (I/Q) imbalance is one of the most serious concerns in the practical implementation of the direct conversion receiver architecture. This paper investigates and analyzes the impacts of the I/Q imbalance on the performance of the single-carrier frequency-division multiple access (SC-FDMA) system with different basis functions by computer simulations only. The suitable phase and amplitude of I and Q branches that can be utilized in SC-FDMA system are studied and determined through simulations for different I/Q imbalance scenarios and different subcarrier mapping schemes. Simulation results show that the phase and amplitude of I and Q branches have significant effects on the bit error rate (BER) performance of the SC-FDMA system.