Analysis of adaptive puncturing schemes for OFDMA system in multi-cell scenario

The paper proposes two puncturing schemes, namely PDI and IntP for coded OFDMA. In the proposed structure, the data is encoded with the lowest available code rate and it is divided among different resource blocks(tiles), where it is punctured adaptively based on some measure of channel quality for each tile. The effect of adaptive puncturing is analysed in multi-cell scenario also. The results are compared with that of normal coded OFDMA system. Simulation results show that puncturing schemes provide significant performance improvement for coded OFDMA systems.