Logarithmic Companding Technique to Improve Performance of SC-FDMA Systems
نویسندگان
چکیده
منابع مشابه
Performance enhancement of SC-FDMA systems using a companding technique
In this paper, a companding technique is proposed to effectively reduce the peak-to-average power ratio (PAPR) in single-carrier frequency division multiple access (SC-FDMA) systems. By companding the samples with large amplitudes, while enhancing those with small amplitudes, a significant reduction in the PAPR can be achieved. The performance of the proposed SC-FDMA with companding system is s...
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The 3rd generation partnership project (3GPP) long term evolution (LTE) standard uses single carrier frequency division multiple access (SCFDMA), scheme for the uplink transmissions and orthogonal frequency division multiplexing access (OFDMA) in downlink. SCFDMA makes use of single carrier modulation and frequency domain equalization, it is a technique that has similar performance and essentia...
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SC-FDMA suffers from high Peak-to-Average Power Ratio (PAPR) problem, which restricts its usage in some applications. In this paper, a joint Discrete Cosine Transform (DCT) and hyperbolic tangent companding (HTC) technique has been studied in order to minimize the effects of the peak-to-average power ratio of the SCFDMA System. The proposed scheme utilizes a DCT rather than the conventional dis...
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------------------------------------------------------------------------------------------ii ACKNOWLEDGEMENT--------------------------------------------------------------------------iii TABLE OF CONTENTS---------------------------------------------------------------------------iv LIST OF TABLES---------------------------------------------------------------------------------viii LIST OF FIGURES-...
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Single carrier frequency division multiple access (SC-FDMA) is the access technique which is used in the long term evolution (LTE) uplink in order to reduce the peak-to-average power ratio (PAPR). The LTE uplink uses this technique in joint application with turbo coding and high order modulations to achieve peak data rates up to 86 Mbps within 20 MHz bandwidth. This paper introduces a semi anal...
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ژورنال
عنوان ژورنال: Indian Journal of Science and Technology
سال: 2016
ISSN: 0974-5645,0974-6846
DOI: 10.17485/ijst/2016/v9is1/107905