Interference mitigation study for the coexistence of bi-phase UWB and multi-band OFDM

Author

Ohno, Kohei ; Ikegami, Tetsushi

Author_Institution

Dept. of Electron. & Commun., Meiji Univ., Kawasaki, Japan

fYear

2005

fDate

5-8 Sept. 2005

Firstpage

707

Lastpage

712

Abstract

Ultra wideband (UWB) is an effective technique that enables coexistence with other radio systems using very short pulses and spread spectrum. Multi band orthogonal frequency division multiplexing (MB-OFDM) is inferentially proposed for personal area networks as well as pulse-based UWB. According to the FCC, both systems is used in same band from 3.1 GHz to 10.6 GHz. This paper discusses the effects of interference between pulse-based UWB (p-UWB) and MB-OFDM. The bit-error rate performance is shown assuming that p-UWB and MB-OFDM are utilized at close range. To mitigate the effects of interference from MB-OFDM to p-UWB, multi-carrier template wave techniques and MB-OFDM band sensing in the p-UWB are proposed. These techniques are found effective for the coexistence of both systems.

Keywords

OFDM modulation; error statistics; interference suppression; radiofrequency interference; ultra wideband communication; BER; bi-phase UWB; bit-error rate; interference mitigation; multiband OFDM; multicarrier template wave techniques; orthogonal frequency division multiplexing; personal area networks; Bit error rate; FCC; Interference; Narrowband; OFDM modulation; Pulse modulation; Space vector pulse width modulation; Spread spectrum communication; Ultra wideband technology; Wireless LAN; Bit-Error Rate (BER); Multi-Band OFDM; Ultra-WideBand (UWB); bi-phase modulation; coexistence; interference; multi-carrier pulse; template wave;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultra-Wideband, 2005. ICU 2005. 2005 IEEE International Conference on

Print_ISBN

0-7803-9397-X

Type

conf

DOI

10.1109/ICU.2005.1570075

Filename

1570075