Rethinking Soft Interference Cancellation (IC) for MIMO: A Hard-Decision IC Inspired Recursive Scheme
Yanze Zhu, Hufei Zhu, Qingqing Wu, Yikui Zhai, Wen Chen, and Yang Liu

TL;DR
This paper introduces a recursive LMMSE-ISIC detection scheme for MIMO systems that significantly reduces computational complexity and memory usage while maintaining optimal BER performance, inspired by hard-decision interference cancellation methods.
Contribution
It develops a novel recursive LMMSE-ISIC detector that extends HD-OSIC, achieving at least 87.50% less computation and 80% less memory, with identical BER performance.
Findings
Reduces computational complexity by at least 87.50%.
Decreases memory requirements by at least 80%.
Maintains the same BER performance as existing schemes.
Abstract
Multiple-input multiple-output (MIMO) technology has been regarded as one of the most important technologies to enable emerging applications in current and next generation wireless communication systems, for which signal detection methods have been endowed with higher requirements, such as finer bit-error ratio (BER) performance, lower complexity, and smaller memory. Existing detectors mainly include hard-decision-based ordered successive interference cancellation (HD-OSIC) schemes with relatively simple implementation, and linear-minimum-mean-squareerror-based iterative soft interference cancellation (LMMSE-ISIC) schemes exhibiting near-optimal BER performance, whose advantages are combined by the detector developed in this paper. Specifically, we first elaborate that the LMMSE-ISIC scheme is the extension of the HD-OSIC counterpart, via comparing our proposed reordered description…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsFull-Duplex Wireless Communications · Advanced Wireless Communication Techniques · Advanced MIMO Systems Optimization
