| 摘要 |
<p>In devices (1) comprising transmitters (10) and receivers (20), the transmitters (10) are provided with buffering means for allocating buffered third / fourth symbols to fifth and sixth / seventh and eighth subcarriers, the fifth and sixth and seventh and eighth subcarriers being different subcarriers in a same time slot, and the receivers (20) are provided with derivation means for deriving first / second symbols from first and second / third and fourth subcarriers, the first and second and third and fourth subcarriers being different subcarriers in a same time slot. Then, the symbols are each present twice or more in a collection of subcarriers. As a result, simple and more robust devices (1) have been created. The subcarriers may be orthogonal frequency division multiplexing subcarriers and the symbols may be phase shift keying symbols. The subcarriers carrying the same symbol may be non-neighboring subcarriers, to increase a robustness. The buffering means comprise a buffer (14) and the derivation means comprise a combiner (24).</p> |
