Abstract Recently, frequency-domain pre-equalization (pre-FDE) transmission has been attracting attention for improving the SC transmission (e.g., DS-CDMA) performance in a frequency-selective fading channel. Antenna diversity reception is also a well-known technique for improving the transmission performance. However, so far the joint use of pre-FDE and the receive diversity has not been discu...

As discussed in Chapter 1, the wireless communication channel can be modeled as a timevarying (TV) linear1 system whose output is corrupted by additive noise. To reliably recover the transmitted information from the channel output, the receiver must address the effects of both linear distortion and additive noise. While, in theory, the mitigation of linear distortion and additive noise should b...

The application of FDE technique makes single carrier modulation a valuable alternative resisting multiple-path in broadband communication. The paper shows the principle of SC-FDE and propose a scheme applied in broadband HF channel in burst communication system. At last the paper shows the performance of scheme system under the DRM criterion channel. Introduction Recent years SC-FDE (Single-Ca...

In this paper, we propose new time-domain and per-tone frequency-domain equalization techniques for OFDM transmission over timeand frequencyselective channels. We present one mixed timeand frequency-domain equalizer and one per-tone frequency-domain equalizer. The mixed timeand frequency-domain equalizer (MTFEQ) consists of a one-tap time-varying (TV) time-domain equalizer (TEQ), which converts...

This special issue focuses on single carrier block modulation (SC-BM) with frequency domain processing. This class of modulation and multiple access schemes complements the orthogonal frequency division multiple access (OFDMA) and its variations. For example, LTE (the long term evolution of the 3GPP standard), and LTE-Advanced, employ OFDMA in the downlink (base stations to mobiles) and SC-FDMA...

Coherent detection employing multilevel modulation formats has become one of the most promising technologies for next generation high speed transmission systems due to the high power and spectral efficiencies. Using the powerful digital signal processing (DSP), coherent optical receivers allow the significant equalization of chromatic dispersion (CD), polarization mode dispersion (PMD), phase n...

In this paper, the combination of equalization and turbo decoding is studied. In the iterative decoding of a product code in block turbo coding system, the equalization process is performed within the iteration loop. The present study aims to investigate the decision feedback equalizer (DFE) incorporated in the iterative decoding. Simulation results show that the more severe the channel interfe...