Exploitation of Extra Diversity in UWB MB-OFDM System

Abstract

This paper describes and analyzes the performance of MB-OFDM (Multi-Band OFDM) UWB (Ultra-WideBand) system that is suggested as one of standards in IEEE 802.15 TG3a for UWB application. UWB channel model that has been contributed in IEEE 802.15 SG3a is a wideband channel model of 6GHz bandwidth, so we modify it to have 3 subband channels that are obtained by filtering conventional UWB channel considering center frequency and bandwidth of each subband. We demonstrate performances of MB-OFDM system under the UWB channel by simulation and verify the frequency and time domain diversity gains. We also compare the performance of a proposed SFBC (Space-Frequency Block Code) MB-OFDM system with that of conventional MB-OFDM system and manifest the extra spatial diversity gain of MB-OFDM UWB system. Simulation results show SFBC MB-OFDM system outperforms conventional MB-OFDM system about 1.5 dB of Eb/No at target BER of 10-4.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
ADA446971

Entities

People

  • Joo Heo
  • Kyunghi Chang

Organizations

  • Inha University

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Channel Estimation
  • Channel Models
  • Communication Systems
  • Data Rate
  • Data Transmission
  • Frequency
  • Frequency Agility
  • Frequency Diversity
  • Frequency Domain
  • Information Operations
  • Time Domain
  • Transmitters

Fields of Study

  • Computer science

Readers

  • Radio communications and signal processing.

Technology Areas

  • Space