2016/01/19 by Peng Wei, Wei, Peng, Lilin Dan +7
Computer Science · Engineering · Mathematics · #Advanced Wireless Communication Techniques #FOS: Computer and information sciences #Information Theory (cs.IT) #PAPR reduction in OFDM #Telecommunications and Broadcasting Technologies #cs.IT #math.IT
paper · pdf · doi:10.48550/arxiv.1601.04795
16 pages, 8 figures
arxiv created 2016/01/19 · openalex publication_date 2016/01/19 · arxiv updated 2016/01/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
N-continuous orthogonal frequency division multiplexing (NC-OFDM) is a promising technique to obtain significant sidelobe suppression for baseband OFDM signals, in future 5G wireless communications. However, the precoder of NC-OFDM usually causes severe interference and high complexity. To reduce the interference and complexity, this paper proposes an improved time-domain N-continuous OFDM (TD-NC-OFDM) by shortening the smooth signal, which is linearly combined by rectangularly pulsed OFDM basis signals truncated by a smooth window. Furthermore, we obtain an asymptotic spectrum analysis of the TD-NC-OFDM signals by a closed-form expression, calculate its low complexity in OFDM transceiver, and derive a closed-form expression of the received signal-to-interference-plus-noise ratio (SINR). Simulation results show that the proposed low-interference TD-NC-OFDM can achieve similar suppression performance but introduce negligible bit error rate (BER) degradation and much lower computational complexity, compared to conventional NC-OFDM.