Title :
Performance of MB-OFDM UWB Systems with Extra Diversity
Author :
Kim, Jee-Hyun ; Shim, Eu-Suk ; Yang, Hyun ; Song, Hyoung-Kyu ; You, Young-Hwan
Author_Institution :
Sejong Univ., Sejong
Abstract :
This paper presents the performance of ultra-wideband multi-band orthogonal frequency division multiplexing (UWB MB-OFDM) systems with extra diversity. To fully obtain diversity gain in the current MB-OFDM system when time-domain spreading (TDS) and frequency-domain spreading (FDS) are adopted, two consecutive OFDM symbols are designed to be cyclic shifted each other. Simulation results show that the MB-OFDM using additional frequency diversity outperforms conventional MB-OFDM.
Keywords :
OFDM modulation; ultra wideband communication; MB-OFDM UWB systems; OFDM symbols; frequency diversity; frequency-domain spreading; multiband orthogonal frequency division multiplexing; time-domain spreading; ultrawideband systems; Bandwidth; Diversity methods; Frequency diversity; OFDM; Personal area networks; Physical layer; Switches; Time domain analysis; Ultra wideband communication; Ultra wideband technology;
Conference_Titel :
Wireless Broadband and Ultra Wideband Communications, 2007. AusWireless 2007. The 2nd International Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-0-7695-2846-5
Electronic_ISBN :
978-0-7695-2846-5
DOI :
10.1109/AUSWIRELESS.2007.58
