Decoding Techniques of LDPC Codes
Wireless mobile communication now demands large data bandwidth to accommodate various multimedia services. such a system requires a very high speed wireless transmission technique. a wireless channel environment is more subject to noise than a wired channel because the signals are open to external disturbances such as path loss, shadowing, and fading therefore, channel coding is inevitable for wireless communication. Channel coding has been an important issue in communication systems. it has the ability to detect and correct errors caused by noise in a channel. The Bit-Error-Rate (BER) can be reduced without increasing the signal power since the transmitted data carry redundancies that are used to detect and correct errors.