BCH/Hamming/Cyclic Coding Techniques: Comparison of PAPR-Reduction Performance in OFDM Systems
OFDM (orthogonal frequency division multiplexing) is a spectrum-efficient digital modulation scheme. It is widely used in various applications involving today’s as well as next-generation network (NGN). Despite many benefits, it suffers from the drawback
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Abstract OFDM (orthogonal frequency division multiplexing) is a spectrum-efficient digital modulation scheme. It is widely used in various applications involving today’s as well as next-generation network (NGN). Despite many benefits, it suffers from the drawback of high PAPR (peak-to-average power ratio) of the transmitted OFDM signal. Channel codes are known to reduce PAPR (Rajasekhar et al. in PAPR reduction performance in OFDM systems using channel coding techniques. International Conference, IEEE, pp 1–5, 2014; Tsai et al. in IEEE Trans Wireless Commun 7:84–89, 2008; Jiang and Wu in IEEE Trans Broadcast 54:257–268, 2008; Chen and Liang in IEEE Trans Wireless Commun 6:3524–3528, 2007) [1–4]. In (Rajasekhar et al. in PAPR reduction performance in OFDM systems using channel coding techniques. International Conference, IEEE, pp 1–5, 2014) [1], PAPR-reduction performance of OFDM signal using Hamming and cyclic codes was evaluated and compared. BCH codes are widely used in mobile communication networks (Agrawal and Zeng in Introduction to wireless and mobile systems, 2015; Hazan and Ran in Study of indoor LTE green small-cells using mobile front haul architecture over hybrid fiber-wireless channels, IEEE, pp 185–189, 2016) [5, 6]. Objective of this paper is to evaluate PAPR-reduction performance of BCH-coded OFDM signal and compare the same with the case when Hamming and cyclic codes are used. Simulation results are evaluated using MATLAB® R2015(a). CCDF versus PAPR curves are plotted and used for comparing the performances of the three channel coding schemes.
P. Kumar Meerut Institute of Technology (MIT), Meerut, Uttar Pradesh, India e-mail: [email protected] A.K. Ahuja (&) Meerut Institute of Engineering and Technology (MIET), Meerut, Uttar Pradesh, India e-mail: [email protected] R. Chakka RGM College of Engineering and Technology, Nandyal, Andhra Pradesh, India e-mail: [email protected] © Springer Nature Singapore Pte Ltd. 2018 S.S. Dash et al. (eds.), International Conference on Intelligent Computing and Applications, Advances in Intelligent Systems and Computing 632, https://doi.org/10.1007/978-981-10-5520-1_50
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Keywords OFDM Wireless communication Hamming code BCH code
PAPR Cyclic code
1 Introduction With increasing usage of communication technologies, the demand for services with higher data rates such as multimedia, voice, data over wireless links has also increased [7]. The received signal is usually distorted due to time-varying characteristics of the channel, also termed as fading [8]. MIMO (multi-input-multi-output) systems use space diversity to reduce the effect of fading [9, 10]. Alternatively, the multi-carrier modulation techniques are used [10, 11]. The basic idea of multi-carrier modulation technique is to divide the single high data rate stream into several low data rate streams to overcome the effect of multi-path fading channel [12]. A multi-carrier system such as FDM (frequency division multiplexing), as shown in Fig. 1a, divides the total availab
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