Noncooperative Cellular Wireless with Unlimited Numbers of Base Station Antennas
Citations
148 citations
Cites background from "Noncooperative Cellular Wireless wi..."
...Motivated by these facts, the purpose of this paper is to develop alternative channel estimators that allow for balancing between computational/hardware complexity and estimation performance....
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...This special case is, unfortunately, of limited practic l 3Note thatO(M3) refers to the complexity scaling of the classical inversion algorithms, such as Gaussian elimination and inversion based on Cholesky decomposition [31]....
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...I NTRODUCTION MIMO techniques can bring huge improvements in spectral efficiency to wireless systems, by increasing the spatial reuse N. Shariati, E. Björnson, and M. Bengtsson are with the Signal Processing Lab, ACCESS Linnaeus Centre, KTH Royal Institute of Technology, Stockholm, Sweden…...
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...We also derive the exact computational complexity of the proposed estimators, in termsof the floating-point operations (FLOPs), by which we prove that the proposed estimators outperform the conventional estimators in large-scale MIMO systems of practical dimensions while providing a reasonable MSEs....
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148 citations
Cites background or methods from "Noncooperative Cellular Wireless wi..."
...Recently, it is found that large-scale MIMO (LS-MIMO) systems can significantly improve the transmission performance by utilizing its enormous array gain [27], [28]....
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...Since maximum ratio combination (MRC) and maximum ratio transmission (MRT) can achieve asymptotically optimal performance in LS-MIMO systems with low complexity [27], [28], we design F by combining MRC and MRT....
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147 citations
147 citations
147 citations
Cites background from "Noncooperative Cellular Wireless wi..."
...MASSIVE multiple-input multiple-output (MIMO) has attracted significant attention in wireless communications, and has been widely considered as a key candidate technology to meet the capacity demand in 5G wireless networks [1], [2]....
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References
6,812 citations
"Noncooperative Cellular Wireless wi..." refers background in this paper
...A point-to-point MIMO system [2] requires expensive multiple-antenna terminals....
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2,616 citations
"Noncooperative Cellular Wireless wi..." refers background in this paper
...An alternative to a point-to-point MIMO system is a multiuser MIMO system [3], [4], [5], [6] in which an antenna array simultaneously serves a multiplicity of autonomous terminals....
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2,308 citations
"Noncooperative Cellular Wireless wi..." refers background in this paper
...It can be shown that the vector φkjΦ ∗ l has exactly the same probability distribution as does any row vector of Φl [15], [16]....
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2,180 citations
1,802 citations
"Noncooperative Cellular Wireless wi..." refers background in this paper
...An alternative to a point-to-point MIMO system is a multiuser MIMO system [3], [4], [5], [6] in which an antenna array simultaneously serves a multiplicity of autonomous terminals....
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