Adaptive interleaver design for rotated-modulation OFDM systems

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Abstract

An adaptive interleaving method was designed for rotated-modulation (orthogonal frequency division multiplexing, OFDM) systems to improve the anti-fading in OFDM systems in sparse multipath channels. The multiple carriers in OFDM are used to add component interleaving into the sub-carrier interleaving using statistical or real channel state information. The interleaver search criterion was designed to select the best component interleaving map. The receiver uses the criterion to search for the best component interleaving and then feeds the map index back to the sending end for adaptive interleaving. Simulations show that this method has excellent anti-fading performance and is bandwidth-efficient in sparse multipath fading channels.

Keywords orthogonal frequency division multiplexing (OFDM) rotated-modulation signal space diversity adaptive interleaving fading channel

Issue Date: 15 April 2014

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	Articles by authors

	Shidong ZHOU
	Shupeng YU
	Limin XIAO
	Xiaofeng ZHONG

Cite this article:

Shidong ZHOU,Shupeng YU,Limin XIAO, et al. Adaptive interleaver design for rotated-modulation OFDM systems[J]. Journal of Tsinghua University(Science and Technology), 2014, 54(4): 458-463.

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http://jst.tsinghuajournals.com/EN/ OR http://jst.tsinghuajournals.com/EN/Y2014/V54/I4/458

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