Two-way non-coherent Physical-Layer Network Coded differential distributed space-time block coding

Zhu, Kai; Burr, Alister G.

doi:10.1109/wcnc.2013.6554939

Cited by 1 publication

(1 citation statement)

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“…The work of Guan and Liu is extended by Fan et al in [11] to 4 and 8PSK alphabets, a bitwise-XOR H-map, but the error performance is poor. Another approach is used in [12], where the authors used the product of subsequent observations, as an analogy with one-to-one transmission and reception. In [13], Hron and Sykora derived a closed-form detector that does not need the knowledge of subchannel phases.…”

Section: Related Workmentioning

confidence: 99%

Exact Analytical H-BER for Ad Hoc XOR H-Map Detector for Two Differentially Modulated BPSK Sources in H-MAC Channel

Lukac

Sýkora

2022

Mathematics

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In the article, we present an ad hoc (AH) detector for two differentially encoded BPSK sources in the Hierarchical MAC (H-MAC), i.e., for the case when the receiver sees the superposition of non-orthogonal signals from individual sources. (Prefix “H-” means Hierarchical, it emphasizes that the entity is related to the many-to-one principle.) The AH detector decodes the XOR H-map of the two BPSK streams—in other words, it decides whether the transmitted symbols from the two sources are the same or opposite. The BER of the detection in H-MAC is denoted as H-BER. The H-BER is compared with the other two differential detectors, with the coherent (Coh) detector, and with an approximate coherent (ApC) detector. The exact analytical H-BER formula is derived for the ad hoc and coherent detectors. The proposed ad hoc detector is very simple for evaluation, does not require the estimation of subchannel phases, does not depend on noise variance, and it is uniformly only roughly 3.5 dB worse than the coherent one.

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Section: Related Workmentioning

confidence: 99%