Delay-time/code division multi-access in frequency-selective channel

F. Adachi, K. Takeda

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


A new hybrid multi-access technique, called delay-time/code division multi-access (DT/CDMA), is proposed. Multiplexing is accomplished in both the delay-time domain and code domain. Delay-time division multiplexing is achieved by assigning different cyclic time delays to the same spreading sequence. At a receiver, frequency-domain equalisation, despreading, and demultiplexing are performed simultaneously in the frequency domain. The bit error rate performance when using the proposed DT/CDMA in a frequency-selective Rayleigh fading channel is evaluated by computer simulation.

Original languageEnglish
Pages (from-to)984-986
Number of pages3
JournalElectronics Letters
Issue number18
Publication statusPublished - 2007


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