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arXiv · 1907.13248

Study of Adaptive Activity-Aware Iterative Detection Techniques for Massive Machine-Type Communications

R. B. Di Renna·R. C. de Lamare
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Abstract

This work studies the uplink of grant-free low data-rate massive machine-to-machine communications (mMTC) where devices are only active sporadically, which requires a joint activity and data detection at the receiver. We develop an adaptive decision feedback detector along with an $l_0$-norm regularized activity-aware recursive least-squares algorithm that only require pilot symbols. An iterative detection and decoding scheme based on low-density parity-check (LDPC) is also devised for signal detection in mMTC. Simulations show the performance of the proposed approaches against existing schemes.

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BibTeXRIS

R. B. Di Renna, R. C. de Lamare. 2019-07-30. Study of Adaptive Activity-Aware Iterative Detection Techniques for Massive Machine-Type Communications. https://arxiv.org/abs/1907.13248

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