Estimation of Time-Varying Channels in Virtual Angular Domain for Massive MIMO Systems
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DOI: 10.1109/access.2022.3233823
Abstract: This paper is concerned with the problem of channel estimation in virtual angular domain in massive MIMO orthogonal frequency division multiplexing (OFDM) systems, in the presence of time varying channels. The proposed channel estimator is… read more here.
Keywords: time; angular domain; massive mimo; virtual angular ... See more keywords
Massive Unsourced Random Access: Exploiting Angular Domain Sparsity
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3153957
Abstract: This paper investigates the unsourced random access (URA) scheme to accommodate numerous machine-type users communicating to a base station equipped with multiple antennas. Existing works adopt a slotted transmission strategy to reduce system complexity; they… read more here.
Keywords: unsourced random; angular domain; sparsity; random access ... See more keywords
Wheel flat detection on railway vehicles using the angular domain synchronous averaging method: an experimental study
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DOI: 10.1177/14759217231166569
Abstract: Recently, composite brake blocks have been widely adopted in European railway systems to replace cast iron brake blocks in order to reduce braking noise. However, the poor heat dissipation of composite materials has caused more… read more here.
Keywords: angular domain; railway vehicles; wheel; domain ... See more keywords
Results on Meromorphic Functions Partially Sharing Some Values in an Angular Domain
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DOI: 10.3390/math6120297
Abstract: By using the Tsuji characteristic of meromorphic function in an angular domain, we investigate two meromorphic functions partially sharing some values in an angle region, and obtain one main result and a series of corollaries… read more here.
Keywords: angular domain; sharing values; functions partially; meromorphic functions ... See more keywords