• Publications
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Single-carrier frequency domain equalization
TLDR
We present an alternative promising approach to ISI mitigation by the use of single-carrier (SC) modulation combined with frequency-domain equalization (FDE). Expand
The finite-length multi-input multi-output MMSE-DFE
TLDR
A new theoretical framework is introduced for analyzing the performance of a finite length minimum-mean-square error decision feedback equalizer (MMSE-DFE) in a multi-input multi-output environment. Expand
MMSE decision-feedback equalizers: finite-length results
TLDR
This paper extends a number of results on the infinite-length minimum-mean-square-error decision Feedback equalizer (MMSE-DFE) to the finite-length case. Expand
Intercarrier interference in MIMO OFDM
TLDR
We analyze the impact of time variation within a transmission block (time variation could arise both from Doppler spread of the channel and synchronization errors). Expand
FIR channel-shortening equalizers for MIMO ISI channels
  • N. Al-Dhahir
  • Engineering, Computer Science
  • IEEE Trans. Commun.
  • 1 February 2001
TLDR
Finite-length delay-optimized multi-input multi-output (MIMO) equalizers that optimally shorten the impulse response memory of frequency-selective MIMO channels are derived. Expand
Equalization Techniques for Distributed Space-Time Block Codes With Amplify-and-Forward Relaying
TLDR
In this paper, we investigate equalization methods for cooperative diversity schemes for distributed STBC in a cooperative transmission scenario with amplify-and-forward relaying. Expand
Efficiently computed reduced-parameter input-aided MMSE equalizers for ML detection: a unified approach
TLDR
A unified approach for computing the optimum settings of a length-N/sub f/ input-aided equalizer that minimizes the mean-square error between the equalized channel impulse response and a target impulse response of a given length N/sub b/ is presented. Expand
A General Power Allocation Scheme to Guarantee Quality of Service in Downlink and Uplink NOMA Systems
TLDR
In this paper, a novel dynamic power allocation scheme is proposed to downlink and uplink non-orthogonal multiple access (NOMA) scenarios with two users for more flexibly meeting various quality of service requirements. Expand
Single-carrier frequency-domain equalization for space-time block-coded transmissions over frequency-selective fading channels
  • N. Al-Dhahir
  • Mathematics, Computer Science
  • IEEE Communications Letters
  • 1 July 2001
TLDR
We propose an Alamouti-like scheme for combining space-time block-coding with single-carrier frequency-domain equalization with significant diversity gains at low complexity over frequency-selective fading channels. Expand
Optimal training signals for MIMO OFDM channel estimation
TLDR
This paper presents general classes of optimal training signals for the estimation of frequency-selective channels in MIMO OFDM systems which minimize the channel estimation mean square error. Expand
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