MC-CDMA PAPR Reduction using a Modified Exponential Companding Transform with Clipping

MC-CDMA PAPR Reduction using a Modified Exponential Companding Transform with Clipping

B.Sarala

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D.S.Venkateswarulu

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B.N.Bhandari

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Osmania University

MC-CDMA PAPR Reduction using a Modified Exponential Companding Transform with Clipping

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Abstract

Multicarrier Code Division Multiple Access (MC-CDMA) system has the inherent problem of a high Peak to Average Power Ratio (PAPR), which results in nonlinear distortion at the High Power Amplifier (HPA) and consequently reduces power efficiency, performance degradation at the receiver. High PAPR causes lowers battery life, and requires HPAs. HPAs result in increased cost, reduced battery life, increased co-channel interference and Inter Symbol Interference (ISI). This paper analyzes a new idea that is combination of exponential companding transform and clipping concept to obtain a new Modified Exponential Companding with Clipping Transform (MECCT) technique for MC-CDMA PAPR reduction. This method evaluates performance analysis of MC-CDMA while considering linear companding and exponential companding (nonlinear) with the Additive White Gaussian Noise (AWGN) channel and is simulated using MATLAB. The simulation results show that the proposed algorithm reduces the PAPR by 2.0 dB, and are able to improve Bit Error Rate (BER), reduced Power Spectral density (PSD), and improvement in spectral bandwidth.

References

9 Cites in Article

Reference Format

B Sarala,D Venkateswarlu (2011). Code Division Multiple Access Transmission Techniques for 3G & 4G Wireless Communication Systems.
B Sarala,D Venkateswarlu (2011). Performance Analysis of Multicarrier Code Division Multiple Access Transmission Techniques.
B Sarala,D Venkateswarlu (2011). MC CDMA PAPR Reduction Techniques using Discrete Transforms and Companding.
B Sarala,Venkateswarulu (2012). MC CDMA Papr Reduction Techniques Using Discrete Transforms And Companding.
K Fazal,S Kaiser (2008). Multi-carrier and spread spectrum systems from OFDM and MC-CDMA to LTE and WIMAX.
L Hanzo,T Keller (2006). OFDM and MC‐CDMA.
B Sarala,D Venkateswarlu (2012). Overview Of MC CDMA Papr Reduction Techniques.
A Suleiman,Aburakhia,F Ehab,Darwish Bardan,Mohamed (2009). Linear Companding Transform for the Reduction of Peak-to-Average Power Ratio of OFDM signals.
T Jiang,Y Yang,Y Song (2005). Exponential companding technique for PAPR reduction in OFDM signals.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

B.Sarala. 2013. \u201cMC-CDMA PAPR Reduction using a Modified Exponential Companding Transform with Clipping\u201d. Global Journal of Research in Engineering - F: Electrical & Electronic GJRE-F Volume 13 (GJRE Volume 13 Issue F10): .

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GJRE Volume 13 Issue F10
Pg. 17- 22

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Keywords

BER HPA MC-CDMA MECCT PAPR

Submission ReceivedDecember 16, 2012
Peer Review Double Blind
Handling Editor
Accepted January 1, 2013
Published January 15, 2013

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v1.2

Issue date

August 10, 2013

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Article Matrices

Total Score: 103

Country: India

Subject: Global Journal of Research in Engineering - F: Electrical & Electronic

Authors: B.Sarala, D.S.Venkateswarulu, B.N.Bhandari (PhD/Dr. count: 0)

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Publish Date: 2013 08, Sat

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Total Views: 4845

Total Downloads: 2435

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