Method and system for time-domain transmission diversity in orthogonal frequency division multiplexing

摘要

through the multiple-output channel comprising a plurality of sub-channels for transmission and reception the OFDM data signal the way. Transmitting the data streams and the plurality of parallel frequency-domain modulation unit by demultiplexing a data channel for data conversion to the time domain data stream, and frequency domain data for each sub-channel are converted to time domain data. For each sub-channel, the time domain data corresponding to the encoding order and dynamically in order to obtain the time domain data is differentially encoded, and transmits the time-domain data encoded differentially. The received signals are converted to digital signals, for each sub-channel, the time domain data from the corresponding data signal is decoded in order to obtain a dynamic time domain decoded data differentially. The time domain data for each sub-channel is converted to frequency domain data and frequency domain data is demodulated to the data stream by demultiplexing the data stream into a plurality of parallel sub-channel frequency domain data.