Now showing items 1-10 of 33
Wireless @ Wired Speeds
This is a poster from the first 100x100 project meeting. It outlines some basic concepts in MIMO algorithm and system design at a relatively high, accessible level.
Channel Equalization Algorithms for MIMO Downlink and ASIP Architectures
Processors for mobile handsets in 3G cellular systems require: high speed, flexibility and low power dissipation. While computationally efficient, ASIC processors are often not flexible enough to support necessary ...
On the Asymptotic Performance of Multiple Antenna Channels with Fast Channel Feedback
In this paper, we analyze the asymptotic performance of multiple antenna channels where the transmitter has either perfect or finite bit channel state information. Using the diversitymultiplexing tradeoff to characterize ...
Structured Iterative and Circulant MIMO Chip Equalizer Architectures with FFT-acceleration for CDMA Systems
In this paper, we propose a class of novel structured linear MMSE chip equalizer architectures for the MIMO CDMA systems using FFT-accelerations. First, a Conjugate Gradient (CG) algorithm is applied to avoid the Direct ...
The Effect of Preprocessing to the Complexity of List Sphere Detector Algorithms
A list sphere detector (LSD) is an enhancement of a sphere detector (SD) that can be used to approximate the soft output MAP detector used in the detection of the multiple-input multiple-output (MIMO) signals. The LSD ...
FFT-Accelerated Iterative MIMO Chip Equalizer Architecture For CDMA Downlink
In this paper, we present a novel FFT-accelerated iterative Linear MMSE chip equalizer in the MIMO CDMA downlink receiver. The reversed form time-domain matrix multiplication in the Conjugate Gradient iteration is accelerated ...
Hermitian Optimization and Scalable VLSI Architecture for Circulant Approximated MIMO Equalizer in CDMA Downlink
In this paper, we propose a parallel and pipelined VLSI architecture for a circulant approximated equalizer for the MIMOCDMA systems. The FFT-based tap solver reduces the Direct-Matrix-Inverse of the size (NF x NF) to the ...
Advanced MIMO-CDMA Receiver for Interference Suppression: Algorithms, System-on-Chip Architectures and Design Methodology
MIMO (Multiple Input Multiple Output) technology is proposed in CDMA systems for much higher rate packet services. The receiver architecture is essential for the mobile devices to support high speed multimedia service. ...
Displacement MIMO Kalman equalizer architecture for CDMA downlink in fast fading channels
In this paper, we explore the displacement structure in a Kalman equalizer for MIMO-CDMA downlink. A streamlined MIMO Kalman equalizer architecture is proposed to extract the commonality in the data path by exploiting the ...
Prototyping Platforms for Multiple Antenna Wireless Communications
As the demand for higher performance wireless communications continues to grow, novel algorithms have been developed which provide increased performance and efficiency. One such class of algorithms involves the use of ...