Author(s)

Shu-Ming TSENG

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Previously, the interleavers is generated randomly for users of Interleave Division Multiple Access (IDMA) systems. Therefore, transmitting the entire chip-level interleaver matrix or power interleaver generation is required, which either adds redundancy or increases delay. In this paper, we propose to use deterministic chip-level interleavers for multiple users of IDMA systems. These chip-level interleavers are modified from single-user symbol-level interleavers for turbo codes. The receiver can generate the chip-level interleavers for user k automatically without the redundancy of transmitting the entire interleaver matrix or the delay of generating power interleavers. Simulation results show that the proposed deterministic–interleaver-based IDMA performance is better than Gold-code-based CDMA in the multipath environment.

Chip-Level Interleaver, Deterministic, IDMA, Turbo Code

S. TSENG, "IDMA Based on Deterministic Interleavers," International Journal of Communications, Network and System Sciences, Vol. 3 No. 1, 2010, pp. 94-97. doi: 10.4236/ijcns.2010.31014.