In this thesis, we consider the problem of reliable data packets transmission using singlecarrier signaling over frequency-selective fading channels. Our objective is to design enhanced transceivers with improved detection performance in the absence of channel state information at the transmitter by exploiting the available time-diversity in Chase combining Hybrid Automatic Repeat reQuest (HARQ...

The orthogonal M-hand complex-valued filter banks have more flexibility in terms of frequency response. In this paper, a new general design method for orthogonal Mband complex-valued filter hanks is presented for multicarrier (MC) transmission to reduce intersymbol and interchannel interference (IS1 and ICI). The design includes three procedures. First, a parameterization method is used to desi...

We consider a prospective island distribution of bit-patterned media recording (BPMR) that consists hexagonal array called staggered BPMR. Although the BPMR can reduce two-dimensional interference, including intersymbol interference from downtrack direction and intertrack cross-track direction, structure is unsuitable for detection schemes regular In BPMR, islands along neighboring tracks are s...

A novel transceiver design for ultra wideband (UWB) communication systems using the channel phase precoding (CPP) technique is proposed in this work. With the CPP-UWB transceiver, we encode data symbols using the reversed order of the channel phase. A simple phase estimation algorithm is presented for the CPP-UWB implementation. Owing to its ability to coherently combine the channel magnitude o...

Digital transmission over dispersive channels which suffer from intersymbol interference (ISI) and/or over multiple-input/multiple-output (MIMO) channels which exhibit multiuser interference is reviewed. In particular, the digital signal processing required at the receiver for performing decision-feedback equalization (DFE) is studied. The aims of processing the received signal are discussed an...

In this paper, we consider the transmission of an orthogonal frequency division multiplexed (OFDM) signal over a channel with timevarying frequency-selective fading and additive white Gaussian noise (AWGN). Due to channel dispersion, intersymbol and intercarrier interference will occur at the receiver. To reduce this interference, a guard time is added as a cyclic prefix. The system performance...

Partial-Response Maximum-Likelihood (PRML) coding techniques overcome problems associated with intersymbol interference (ISI) on the premise that, once this interference is known, its effect can be removed. A core part of the analogue front-end of a PRML read channel, and the subject of this paper, is a continuous-time low-pass filter which carries out both pulse-shaping and noise-filtering. Th...

Precoding [3] is an attractive strategy when transmitting over channels which suffer from additive noise and an additional interference term which is already known at the transmitter side. For example, Tomlinson-Harashima precoding, initially introduced for intersymbol-interference channels, has been extended to the equalization of MIMO channels such as multiple antenna systems [3]. Key point i...

Through transmitter pre-filtering, a time reversed UWB system is capable if harnessing a multipath channel to achieve temporal and spatial focusing. Unfortunately, large RMS channel delay spread leads to significant intersymbol and multiuser interference. This paper presents closed-form expressions for self and multi-user interference for a UWB system utilizing a time-reversed approach. The inf...

In this paper, a novel wireless transmission system is proposed. The system is composed of two cascaded subsystem: an inner filtered multitone (FMT) modulator with transmission over multiple antennas, and an outer Single carrier cyclic prefix (SCCP) system. The FMT modulator can efficiently avoid the inter-carrier interference, and with multiple antennas the cyclic delay diversity (CDD) can inc...