TY - GEN
T1 - Implementation and performance evaluation of orthogonal frequency division multiplexing (OFDM) using WARP
AU - Suryani, Titiek
AU - Suwadi,
AU - Hasan,
AU - Yoga, Septriandi Wira
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/8/24
Y1 - 2015/8/24
N2 - The main problem in high data rate transmision is frequency selective fading due to multipath propagation. This fading causes deep fade on signal spectrum at one particular frequency. To overcome this problem, many researchers proposed a multi-carrier technique, which divides wideband signal bandwidth into multiple narrowband signal before transmitted using certain number of subcarriers. By using this technique, the depth fade can be localized, hence only one subcarrier will be affected such that the number of error bit can be minimize. Orthogonal Frequency Division Multiplexing (OFDM) is a form of multi-carrier technique which uses bandwidth effectively. This OFDM system can be implemented on Wireless Open-Access Research Platform (WARP) that is one of the Software Defined Radio (SDR). By implementing OFDM on WARP module, the bit error rate (BER) system performance can be analysis in the real channel. The implementation of OFDM technique on WARP modul is based on IEEE 802.11 standard. If the range between transmitter (Tx) and receiver (Rx) short enough (less than 10 m), the distance variation didn't affect the BER performance significantly. Whereas, if there is an obstacle between transmitter and receiver, the BER will increase significantly compared no obstacle (dear condition) for short range Tx-Rx distance. For example, BER is 0 in clear condition when the transmit power is -26.125 dBm, meanwhile the BER value is 9.3 × 10-6 in obstacle condition and for short range distance, the objects near propagation path provide reflected signal power with significant contribution.
AB - The main problem in high data rate transmision is frequency selective fading due to multipath propagation. This fading causes deep fade on signal spectrum at one particular frequency. To overcome this problem, many researchers proposed a multi-carrier technique, which divides wideband signal bandwidth into multiple narrowband signal before transmitted using certain number of subcarriers. By using this technique, the depth fade can be localized, hence only one subcarrier will be affected such that the number of error bit can be minimize. Orthogonal Frequency Division Multiplexing (OFDM) is a form of multi-carrier technique which uses bandwidth effectively. This OFDM system can be implemented on Wireless Open-Access Research Platform (WARP) that is one of the Software Defined Radio (SDR). By implementing OFDM on WARP module, the bit error rate (BER) system performance can be analysis in the real channel. The implementation of OFDM technique on WARP modul is based on IEEE 802.11 standard. If the range between transmitter (Tx) and receiver (Rx) short enough (less than 10 m), the distance variation didn't affect the BER performance significantly. Whereas, if there is an obstacle between transmitter and receiver, the BER will increase significantly compared no obstacle (dear condition) for short range Tx-Rx distance. For example, BER is 0 in clear condition when the transmit power is -26.125 dBm, meanwhile the BER value is 9.3 × 10-6 in obstacle condition and for short range distance, the objects near propagation path provide reflected signal power with significant contribution.
KW - IEEE 802.11
KW - Multicarrier
KW - OFDM
KW - SDR
KW - WARP
UR - http://www.scopus.com/inward/record.url?scp=84954193190&partnerID=8YFLogxK
U2 - 10.1109/ISITIA.2015.7220024
DO - 10.1109/ISITIA.2015.7220024
M3 - Conference contribution
AN - SCOPUS:84954193190
T3 - 2015 International Seminar on Intelligent Technology and Its Applications, ISITIA 2015 - Proceeding
SP - 451
EP - 455
BT - 2015 International Seminar on Intelligent Technology and Its Applications, ISITIA 2015 - Proceeding
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 16th International Seminar on Intelligent Technology and Its Applications, ISITIA 2015
Y2 - 20 May 2015 through 21 May 2015
ER -