Title :
A proposal for time-frequency codes by 5 bands in MB-OFDM UWB system
Author :
Yang, Xi ; He, Minghua
Author_Institution :
Coll. of Phys. & Inf. Eng., Fuzhou Univ., Fuzhou, China
Abstract :
In this paper we propose a time-frequency code by 5 bands in multi-band orthogonal frequency division modulation (MB-OFDM) ultra-wide band (UWB) system to enhance the performance in a situation where interferences happen among neighboring piconets. This new time-frequency codes (TFCs) scheme is theoretically analyzed and compared with the international standard ECMA-368 in terms of collision possibility (CP) and channel diversity. A simulation is conducted to show the extra diversity. Based on the results of the simulation, we evaluate the performance of our proposal.
Keywords :
OFDM modulation; codes; diversity reception; interference (signal); multi-access systems; ultra wideband communication; MB-OFDM UWB system; channel diversity; collision possibility; interferences; international standard ECMA-368; multiband orthogonal frequency division modulation; neighboring piconets; time-frequency codes; ultra-wide band system; Bandwidth; Code standards; Educational institutions; FCC; Helium; Interference; Personal area networks; Physics; Proposals; Time frequency analysis; Interference; MB-OFDM; Time-Frequency Codes; UWB;
Conference_Titel :
Communications Technology and Applications, 2009. ICCTA '09. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4816-6
Electronic_ISBN :
978-1-4244-4817-3
DOI :
10.1109/ICCOMTA.2009.5349085
