REDUCTION OF MULTIPLE ACCESS INTERFERENCE IN MC-CDMA IN THE PRESENCE OF RAYLEIGH FADING
- Publication Type:
- Conference
- Issue Date:
- 2007-03-12T22:05:49Z
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A new technique is proposed that offers significant reduction of multiple access interference (MAI) encountered in asynchronous multicarrier code division multiple access (MC-CD MA) detection. Using a dual frequency switching component at the transmitter enables the removal of a portion of unwanted interference signals from the decision variable. Biterror rate (BER) comparisons are shown for the use of both Gold and Walsh-Hadamard (WH) spreading sequences. The proposed switching technique clearly outperforms the existing MC-CDMA technique, however, additional bandwidth is required.
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