frequency offset difference;
multiple-access interference (MAI);
orthogonal frequency division multiple access;
(OFDMA);
D O I:
10.1109/LCOMM.2003.820098
中图分类号:
TN [电子技术、通信技术];
学科分类号:
0809 ;
摘要:
We propose an edge sidelobe suppressor (ESS) for the uplink of orthogonal frequency-division multiple-access (OFDMA) systems, which mitigates the interference introduced by different frequency offsets between a desired user and the other users. The simulation results confirm that the proposed ESS scheme improves system performance by approximately 5-dB signal-to-interference ratio as compared to conventional OFDMA systems, and without increasing the level of transmitter and receiver complexity.