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Two-Stage and Walsh Interleavers for Interleave Division Multiple Access Systems | ||
| Engineering and Technology Journal | ||
| Article 19, Volume 32, 1A, 2014, Pages 273-285 PDF (1.98 M) | ||
| DOI: 10.30684/etj.32.1A.19 | ||
| Author | ||
| Muayad Sadik Croock | ||
| Abstract | ||
| Interleavers are essential system components for interleave division multiple access (IDMA). In this paper, two-stage interleavers are proposed based on two optimization criteria combines minimum spreading distance with regular permutation and randomization properties to have almost the same advantages of the random distribution, and yet guaranties an enlarged minimum spread distance. Simulation results show sufficiently good performance with much less resource consumption compared to multiple random interleavers. The proposed method may also find other application areas such as multi-dimensional concatenated codes. In addition, an efficient and simple procedure is proposed to generate orthogonal interleavers by using the well-known Walsh-Hadamard transform. | ||
| Keywords | ||
| IDMA; Two; Stage Interleavers; Walsh Interleavers | ||
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