An overview of peak-to-average power ratio reduction techniques for multicarrier transmission
IEEE Wireless Communications
The OFDM-IDMA approach to wireless communication systems
IEEE Wireless Communications
Interleave division multiple-access
IEEE Transactions on Wireless Communications
Symbol Detection of IDMA Systems in the Presence of Carrier Frequency Offsets
Wireless Personal Communications: An International Journal
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In this letter, a variable interleaver allocation scheme is proposed to alleviate the high peak-to-average power ratio (PAPR) of downlink OFDM-IDMA (orthogonal frequency division multiplexing-interleave division multiple access). The basic idea is to allocate multiple interleaving patterns for each user, so as to decide the best pattern with the lowest peak value. Furthermore, a variable interleaver design scheme is combined to generate multiple patterns from an original one. It is shown that the proposed scheme can achieve the theoretical bound of PAPR reduction performance, while making a good tradeoff among PAPR reduction, system performance and computational complexity.