Implementation of SRRC Filter in Mobile WiMax with DWT Based OFDM System | Zendy

Harpreet Kaur | Zendy; Manoj Kumar | Zendy; Ajay K. Sharma | Zendy; Harjit Singh | Zendy

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Implementation of SRRC Filter in Mobile WiMax with DWT Based OFDM System

Author(s) -

Harpreet Kaur,

Manoj Kumar,

Ajay K. Sharma,

Harjit Singh

Publication year - 2016

Publication title -

international journal of computer network and information security

Language(s) - English

Resource type - Journals

eISSN - 2074-9104

pISSN - 2074-9090

DOI - 10.5815/ijcnis.2016.04.08

Subject(s) - computer science , orthogonal frequency division multiplexing , electronic engineering , bit error rate , multipath propagation , raised cosine filter , bandwidth (computing) , spectral efficiency , additive white gaussian noise , algorithm , channel (broadcasting) , telecommunications , root raised cosine filter , low pass filter , engineering

Pulse shaping filter when applied to the symbols generated for transmission in a bandwidth limited systems allow for bandwidth containment that reduces the Inter-Symbol Interference (ISI) arising from multipath signal reflections which further minimizes the probability of errors at the receiver. Wavelets encompass the advantages of transforming and mapping data onto orthogonal subcarriers with optimal flexibility as well as less complexity which leads to increase the bandwidth efficiency of an Orthogonal Frequency Division Multiplexing (OFDM) system. In this paper Square Root Raised Cosine (SRRC) a pulse shaping technique when applied to Discrete Wavelet Transform (DWT) based OFDM system in mobile WiMax is simulated and its performance analysis in terms of Bit Error rate (BER) as a function of Signal to Noise Ratio (SNR) is investigated for various modulation schemes under AWGN channel. The results obtained show that SRRC filter offers to significantly improve BER for the given SNR and enhance the performance of physical layer in Mobile WiMax. The performance measurements and analysis is done in the simulation developed in MATLAB.

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