| 摘要 |
<p>A method and apparatus for enhancing the cell error ratio and the cell misinsertion rate for a given cell loss ratio is provided. A predetermined number, C, of ATM cells (150, 250) are packed together and encoded using a strong t-error correcting BCH block code, such as a Reed-Solomon code to produce an encoded block (162, 262). After transmission, the received data segment (156, 256) may include s errors. The data segment (156, 256) is decoded, and if s > t, decoder failure occurs with very high probability and the data segment is discarded. The CER obtained is superior to present ATM systems. The decoded block is unpacked into C ATM cells (160, 260). Optionally, the header fields (164, 264) of the C ATM cells may be decoded. In most cases where errors are present in the header, nonzero syndrome occurs with high probability, and the C ATM cells (160, 260) are discarded. The CMR obtained is superior to present ATM systems. The delivered ATM cells (160, 260) are virtually error free with very high certainty. <IMAGE></p> |
