Interference mitigation for simultaneous operating piconets in MB-OFDM systems

Author

Huang, Chih-Yao ; Chang, Li-Chung

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan

fYear

2009

fDate

8-10 Dec. 2009

Firstpage

1

Lastpage

5

Abstract

The multi-band orthogonal frequency division multiplexing (MB-OFDM) is an ultra wideband (UWB) technology that can transmit information at the maximum data rate of 480 Mb/s. When the simultaneous operating piconets (SOP) are located closely, the symbol collisions are expected to occur among the symbols transmitted over the same sub-band at the same time. This interference will decrease throughputs and increase the error rate of the UWB system. We propose an interference mitigation method that changes the time-frequency code (TFC) number of transmitter for the desired piconet according to the packet error rate (PER) of the two TFCs colliding. This proposed method can reduce the symbol collisions of SOP interference effectively.

Keywords

OFDM modulation; codes; error statistics; interference suppression; personal area networks; ultra wideband communication; MB-OFDM systems; UWB system; bit rate 480 Mbit/s; interference mitigation; multiband orthogonal frequency division multiplexing; packet error rate; simultaneous operating piconets; symbol collisions; time-frequency code; ultra wideband technology; Bandwidth; Collision mitigation; Error analysis; FCC; Interference; OFDM; Personal area networks; Radio transmitters; Time frequency analysis; Ultra wideband technology; MB-OFDM; SOP; UWB;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 2009. ICICS 2009. 7th International Conference on

Conference_Location

Macau

Print_ISBN

978-1-4244-4656-8

Electronic_ISBN

978-1-4244-4657-5

Type

conf

DOI

10.1109/ICICS.2009.5397567

Filename

5397567