M.Sc. Tezi Görüntüleme
One of the main goals in a digital communication system is to increase the information rate at the receiver side without having erroneous data. Unexpected changes (e.g., multipath propagation effect ), in the transmission mediums like radio or space links, corrupt the data signal and cause an information loss. Reliable data transfer at high speed increases the quality of service and is also an important problem in many cases. Storing the data without corrupting it prevents the data and time loss.
Error correction codes are a means of including redundancy in a stream of information bits to allow thedetection and correction of symbol errors during transmission. The birth of error correction coding showed that Shannons channel capacity could be achieved when transmitting information through a noisy channel. Reed Solomon Codes (RS) are the most powerful in the family of linear block codes and are arguably the most widely used type of error control codes. To be specific, RS codes are non-binary systematic cyclic linear block codes. Non-binary codes work with symbols that consist of several bits. Non-binary codes such as RS are good at correcting burst errors because the correction of error the codes is done on the symbol level. Compared to decoding, channel encoding is relatively simple.
The dissertation specifically describes the structure of Reed Solomon Codes gives the performance of Reed Solomon Codes in additive white Gaussian noise (AWGN) channels and in Rayleigh fading channels and thus, determines the factors that influence the performance of Reed Solomon decoding in AWGN and Rayleigh
fading channels. Therefore, initially, encoding and decoding process is studied carefully and great amount ofinformation about the Reed Solomon decoding algorithm is given. Then, by changing the factors that influence the performance of Reed Solomon decoder in AWGN and Rayleigh fading channels, various simulation results are obtained.
Reed Solomon Encoding, Error Correction Codes, Reed Solomon Decoding Algorithm