Title :
Edge sidelobe suppressor schemes for uplink of orthogonal frequency division multiple access systems
Author :
Yoo, Hwasun ; Kang, Changeon ; Hong, Daesik
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
We propose an edge sidelobe suppressor (ESS) for the uplink of OFDMA systems which mitigates the interference introduced by different frequency offsets between a desired user and other users. The performance of this ESS scheme is evaluated using both the average signal to interference power ratio (SIR) and the average bit error rate (BER). The simulation results confirm that the proposed ESS scheme improves system performance by approximately 10 dB SIR as compared to conventional OFDMA systems, and without increasing the level of transmitter and receiver complexity.
Keywords :
OFDM modulation; error statistics; interference suppression; receivers; transmitters; OFDMA systems; average BER; average SIR; bit error rate; edge sidelobe suppressor schemes; frequency offsets; interference mitigation; orthogonal frequency division multiple access systems; performance; receiver; signal to interference power ratio; transmitter; uplink; Bit error rate; Degradation; Electronic switching systems; Fading; Frequency conversion; Frequency synchronization; Interference; OFDM; Timing; Transmitters;
Conference_Titel :
Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE
Print_ISBN :
0-7803-7632-3
DOI :
10.1109/GLOCOM.2002.1188146
