Evaluation of System Performance of Ultra-Wide Band Jointing in MC Signaling in Correlated Environments

Joy Iong-Zong Chen,Kai-Chih Chuang,Lu-Tsou Yeh

doi:10.4236/eng.2013.54045

Abstract

The evaluation of System Performance of UWB (ultra-wide band) jointing in MC (multi-carrier) signaling in correlated environments is presented in the report. The correlated Nakagami-m statistical distribution for the multipath fading model is assumed in this scenario. In fact to establish the model for analyzing in this article is using MC-CDMA (multi-carrier code-division multiple-access) system characterization combined with a UWB scheme. The average BER (bit error rate) is calculated and compared to a special case of previously published results. Studied results from this paper can be implied to approve the system performance for a UWB system combined with a MC-CDMA wireless communication system. It is worth noting that the Nakagami-m distributed fading parameter significantly dominates UWB system performance when it cooperates with MC signaling under a fading environment. Finally, it is worthy of noting that when the SNR (signal-to-noise ratio) at system’s receiver reaches a preset high threshold value, the parameter of power decay ratio effect could be not included.

Highlights

The UWB system is explained as a system which the impulse wireless radio system transmits data without a sinusoidal modulating signal, it is instead of sub-nanosecond pulses, recently raised growing interest
To establish the model for analyzing in this article is using MC-CDMA system characterization combined with a UWB scheme
It is worth noting that the Nakagami-m distributed fading parameter significantly dominates UWB system performance when it cooperates with MC signaling under a fading environment

Summary

Introduction

The UWB (ultra-wide band) system is explained as a system which the impulse wireless radio system transmits data without a sinusoidal modulating signal, it is instead of sub-nanosecond pulses, recently raised growing interest. In [6] a frequency selective Nakagami fading channel was considered to analyze inter-symbol/frame interference for pulsed DS (direct sequence) and hybrid DS-TH (DS-time hopping) UWB communications. The system performance of PCSS-UWB (parallel combinatory spread spectrum) with multiple users was evaluated considering the AWGN channel in [11], where the authors proposed MUD (multiple user detection) in the system with 2 dB outperforming the system without MUD. The aforementioned research motivated this paper’s contribution in analyzing MC (multi-carrier) techniques combined with the UWB system performance over the correlated-Nakagami-m fading channel.

System Models

Performance Analysis of Proposed System

C M e L 1 2

Numerical Results and Discussion

Conclusions