# Burst Channel Error Reduction Based on Interleaving for Efficient High-Speed Wireless Communication
###### Abstract  
Recently, the demand for reliable and high-speed wireless communication has rapidly increased. Orthogonal frequency division multiplexing (OFDM) is a modulation scheme that is the newest competitor against other modulation schemes used for this purpose. OFDM is mostly used for wireless data transfer, although it may also be used for cable and fiber optic connections. However, in many applications, OFDM suffers from burst errors and high bit error rates. This paper presents the utilization of a helical interleaver with OFDM systems to efficiently handle burst channel errors and allow for Bit Error Rate (BER) reduction. The paper also presents a new interleaver, FRF, the initial letters of the authors' names, for the same purpose. This newly proposed interleaver summarizes our previous experience with many recent interleavers. Fast Fourier transform OFDM (FFT-OFDM) and Discrete Wavelet Transform OFDM (DWT-OFDM) systems are used to test the efficiency of the suggested scheme in terms of burst channel error removal and BER reduction. Finally, the general complexity of the FRF interleaver is different from that of the helical interleaver in terms of hardware requirements. The performance of the proposed scheme was studied over different channel models. The obtained simulation results show a noticeable performance improvement over the conventional FFT-OFDM and the FFT-OFDM systems with the helical interleaver. Finally, the disadvantage of the proposed FRF interleaver is that it is more complex than the helical interleaver. O 20221 March 2022130 March 20221 March 2022130  
fast Fourier transform (FFT) in the standard OFDM system. In addition, recent research on multicarrier modulation performance has explored the use of wavelet-based OFDM as an appealing alternative to the Fourier-based OFDM system [3; 4; 5; 6; 7; 8]. Because there is no cyclic prefix requirement, the wavelet-based OFDM system offers better spectral efficiency, has very tight side lobes, and shows enhanced BER performance [9; 10; 11; 12]. Another topic that will be considered in this work is the performance enhancement of data transmission in OFDM systems through data interleaving. It is known that data transmission over wireless channels may suffer from severe adverse conditions, especially burst errors, where errors are likely to occur in clusters. Interleavers have been used extensively in digital communication systems to disperse these burst errors [13; 14]. Some simple interleaving techniques have been proposed [15; 16; 17]. The performance of such simple interleavers is limited. Therefore, there is a need for more powerful interleavers. This work depends on using helical interleavers with OFDM systems to effectively manage burst channel errors and reduce BER. In addition, the paper presents a new interleaver, FRF, for the same purpose. This suggested interleaver summarizes our prior experience with several recent interleavers. There are two types of systems that are used to test the proposed interleaver: FFT-OFDM and DWT-OFDM. The FRF interleaver is more complicated than the helical interleaver in terms of hardware. It can also combat the channel effects with neither complicated coding schemes for error detection and correction nor adaptation of the modulation scheme. Another advantage of the proposed interleaver is that it achieves a degree of encryption in the transmitted data, which adds more security to the data transmission process. Therefore, the contribution of this work could be summarized as follows:  
1. Introducing a new interleaver that manages burst channel errors and reduces BER. Such an interleaver can be used in critical systems where power consumption is essential. 2. The new interleaver combats the channel effects with neither complicated coding schemes for error detection and correction nor adaptation of the modulation scheme. 3. The new interleaver achieves a degree of encryption in the transmitted data. The paper is structured as follows. Section 2 introduces the OFDM and interleaver overview.