The paper presents an efficient integrated decoding algorithm for massive uncoupled unsourced random access (UURA) in 6G wireless networks. The key highlights are:
A UURA framework is established that enables immediate decoding, where each sub-message within a sub-slot is detected and stitched simultaneously upon arrival at the receiver, eliminating the need to wait for the complete message before decoding begins.
An integrated decoding algorithm is designed by leveraging matrix information geometry (MIG) theory. MIG is used to efficiently measure the geometric similarities between codeword covariance matrices, facilitating the simultaneous detection and stitching of codewords in each sub-slot.
The computational complexity and convergence rate of the proposed MIG-aided integrated decoding-based UURA scheme are analyzed, validating its feasibility and effectiveness.
Extensive simulations are presented to demonstrate the performance advantages of the proposed scheme over existing UURA and coupled URA schemes in terms of processing latency and computational complexity.
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by Feiyan Tian,... at arxiv.org 05-07-2024
https://arxiv.org/pdf/2405.03191.pdfDeeper Inquiries