LDPC-Coded Modulation Performance Analysis and System Design

DESIGN AND PERFORMANCE ANALYSIS FOR LDPC CODED MODULATION IN MULTIUSER MIMO SYSTEMS by

Performance Bound for Finite-Length LDPC Coded Modulation

Coded modulation systems based on low density parity check (LDPC) codes of finite lengths are considered. The union bounds on the bit error probabilities of the maximum likelihood (ML) decoding are presented for both additive white Gaussian noise (AWGN) and flat Rayleigh fading channels. The tightness of the derived bound is verified by simulating the ML decoding of a very short LDPC code. For ...

Performance of LDPC- Coded APSK-Modulation for Wireless USB

The creation of Ultra-Wideband (UWB) radio platform has allowed the development of high bit-rate Wireless-USB offering High Definition video streaming. Quadrature Phase Shift Keying (QPSK) and Dual Carrier Modulation (DCM) are the current modulation schemes used for Multiband Orthogonal Frequency Division Multiplexing (MB-OFDM) in the ECMA-368 defined UWB radio platform. ECMA-368 offers up to 4...

LDPC-Coded Modulations: Performance Bounds and a Novel Design Criterion

In this paper, we present a novel design criterion for low-density parity-check (LDPC)-coded modulations based on the concatenation of an LDPC code with a coded modulator (CM) tailored for the specific transmission channel. Although we use an analysis based on extrinsic information transfer (EXIT) charts, we focus on the bit error rate (BER) performance as opposed to the convergence threshold. ...

Adaptive Modulation for LDPC coded-OFDM based Powerline communication system

As a result of the impairments generated by the consumer electronic devices on power line channel extensive research has been carried out to mitigate the deteriorating effects. In this work the performance of an OFDM based power line communication system is evaluated under OPERA [1] proposed power line channel. An adaptive modulation system is designed and the performance advantages of the syst...