An interference self-cancellation technique for SC-FDMA systems
- Publication Type:
- Journal Article
- IEEE Communications Letters, 2010, 14 (6), pp. 512 - 514
- Issue Date:
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A new interference self-cancellation (ISC) method for Single Carrier-FDMA (SC-FDMA) systems is proposed to mitigate the inter-user interference caused by frequency offset or Doppler effect. By transmitting a compensation symbol at the first symbol location in each resource block, the energy leakage can be significantly suppressed. With little bandwidth and power sacrifice, the proposed method can greatly improve the system robustness against frequency offset. Simulation results show that the signal-to-interference ratio (SIR) can be improved by 7 dB on average for the entire system band, and up to 11.7 dB for an individual user. © 2010 IEEE.
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