Abstract

AbstractThis chapter studies the challenging device activity and data detection (DADD) problem for media modulation based mMTC. Specifically, by exploiting a doubly structured sparsity of the access signals, a doubly structured approximate message passing (DS-AMP) algorithm is proposed for reliable DADD. Also, the state evolution of the DS-AMP algorithm is derived to theoretically characterize its performance. Furthermore, this chapter develops a bit-interleaved coded media modulation scheme and proposes an iterative DS-AMP (IDS-AMP) algorithm based on SIC to improve the data decoding performance. In addition, an efficient data-aided CSI update strategy is developed to reduce the channel estimation overhead in block fading channels.

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