... dn. The extrinsicinformation, LeE(dn), is a function of˘x(p) and the a prioriinformation about the coded bits other than the nth bit, thatis, LD(dn), n/=n, from the previous ... increasing the reliability of the detected data, the iterative receiver for joint estimation, equalization, and decoding significantlyimproves the performance of the Q-OFDMA system, with the similar ... iterativereceiver for joint estimation, equalization, and decoding for the Q-OFDMA systems based on the turbo processingprinciple. The estimator makes use of training symbolsand the soft-decoded data information...