The OFDM sequences with low correlation sidelobe level (SLCL) is desired in many 5G wireless systems. In this letter, the OFDM sequences and mismatch filter are jointly designed to achieve the SLCL under the constraints of spectra and peak to average power ratio (PAPR). Specifically, we formulate the optimization problem by maximizing the peak side lobe ratio (PSLR) of the cross-correlation between the OFDM sequences and mismatch filter, subject to several practice constraints. To solve the nonconvex problem, an efficient alternating optimization (AltOpt) algorithm is proposed. Numerical simulations are provided to demonstrate the effectiveness of the proposed algorithms.

翻译：在许多5G无线系统中,需要使用低相关边圈水平的 OFDM 序列(SLL) 。在本信中,FODM 序列和错配过滤器是为了在光谱和峰值与平均功率比(PAPR)的限制下实现 SLL而共同设计的。 具体地说,我们通过最大限度地增加OFDM 序列与错配过滤器之间的顶端边圈比率(PSLR ) 来制定优化问题,但受若干实践限制。 为了解决非convex问题,建议了高效交替优化(AltOpt)算法。提供了数字模拟,以证明拟议算法的有效性。