Precise BER Analysis of 1/2 and 2/3 rated RS-CC Concatenated Coded for Digital Image Transmission in OFDM System
We introduce an analytical approach to evaluate bit error rate (BER) expression is derived for an OFDM system with PSK and QAM encoded image signal are transmitted over AWGN and fading channel models. Different system configurations including time-domain differential modulation, frequency domain differential modulations, delay spread of channels are considered in the exact BER analysis. Both analysis and simulation results are presented for 2PSK, 4QAM and 16QAM. We also investigate the performance of concatenated RS and convolutional code (CC) over AWGN and frequency selective fast fading channels. By concatenating two different codes, we can get the effect of improving the total BER due to benefits of RS codes correcting burst errors while convolutional codes are good for correcting random errors that are caused due to a noisy channel. The resulting scheme is tested for the transmission of images over noisy channels.
Keywords: OFDM, Bit Error Rate, Color Image, RS-CC Concatenated Code, FEC, Modulation Technique
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ABOUT THE AUTHORS
Md. Zahid Hasan
Md. Zahid Hasan was born in Dhaka, Bangladesh, in 1985. He received the B.Sc. and M.Sc. degree in Information and Communication Engineering (I.C.E.) from the University of Rajshahi, in 2008 and 2010, respectively. Currently he is working as a lecturer in the department of Computer Science and Engineering at Green university of Bangladesh (GUB). His research interests include wireless communication, Data mining and Image Processing.
Nur-E-Zaman Ayshik
Nur-E-Zaman Ayshik was born in Bangladesh, 28th September in 1989. He received the B.Sc. Eng. degree in Electrical and Electronics Engineering (E.E.E.) from the Bangladesh University of Engineering and Technology (BUET), in 2012.
Md. Hasibur Rahman
Md. Hasibur Rahman accomplished B. Sc. Engg. in Electrical and Electronic Engineering from Bangladesh University of Engineering and Technology (BUET) on 16th January, 2008. Currently he is working in Orascom Telecom Bangladesh Ltd. as an Optimization Specialist
Md. Zahid Hasan
Md. Zahid Hasan was born in Dhaka, Bangladesh, in 1985. He received the B.Sc. and M.Sc. degree in Information and Communication Engineering (I.C.E.) from the University of Rajshahi, in 2008 and 2010, respectively. Currently he is working as a lecturer in the department of Computer Science and Engineering at Green university of Bangladesh (GUB). His research interests include wireless communication, Data mining and Image Processing.
Nur-E-Zaman Ayshik
Nur-E-Zaman Ayshik was born in Bangladesh, 28th September in 1989. He received the B.Sc. Eng. degree in Electrical and Electronics Engineering (E.E.E.) from the Bangladesh University of Engineering and Technology (BUET), in 2012.
Md. Hasibur Rahman
Md. Hasibur Rahman accomplished B. Sc. Engg. in Electrical and Electronic Engineering from Bangladesh University of Engineering and Technology (BUET) on 16th January, 2008. Currently he is working in Orascom Telecom Bangladesh Ltd. as an Optimization Specialist
