Estimation of DAP symbols using asynchronized OFDM system

Although OFDM has a lot of advantages similar to robust to multipath fading, spectral efficiency, it is very solicitous to synchronization inaccuracy which exists affected by Carrier Frequency Offset (CFO), in addition to Sampling Clock Offset (SCO). The synchronization error reduces the orthogonality, so the OFDM leads to degraded system performance. To improve the effectiveness of the system, we adopted the improved Joint weighted least square(JWLS) Harmonization Algorithm is existing within this paper for assessing the offset. These offset are compensated by phase compensation interpolation techniques, toward recover the presentation of the OFDM scheme.