Matrix cyclic shifting based interleaver design for IDMA system

Authors:
Li Han;Minglu Jin;Ende Song
Affiliations:
School of Electronic and Information, Dalian University of Technology, Dalian, China;School of Electronic and Information, Dalian University of Technology, Dalian, China;School of Electronic and Information, Dalian University of Technology, Dalian, China
Venue:
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Year:
2009

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Performance Analysis of Optimum Interleaver based on Prime Numbers for Multiuser Iterative IDMA Systems

International Journal of Interdisciplinary Telecommunications and Networking

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Abstract

Interleaver is the only means for user separation in Interleave-Division Multiple-Access (IDMA) systems. A user-specific interlaver design method based on matrix cyclic shifting is proposed, and simulation comparison with random interleaver in AWGN channel is completed. The results show that the matrix cyclic shifting interleaver can maintain almost the same BER performance with random interleaver. This method solves the memory cost problem to store the interleaver pattern and reduces the amount of information exchange between the mobiles and the base stations to specify the interleaver.