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- W1983390976 abstract "We investigate the degrees of freedom (DoF) issue for multi-hop wireless networks with multiple-node layers under layered time-division-duplex (TDD) constraint. Our recent work about cascaded linear networks shows that the number of feasible network states is related to the famous Fibonacci sequence and the maximum achievable decode-and-forward (DF) rate is r*= min {C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>1</sub> C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> /C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>1</sub> +C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> , C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sub> /C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> +C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sub> ,⋯, C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>K-1</sub> C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>K</sub> /C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>K-1</sub> +C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>K</sub> } for K-hop networks, where C <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>k</sub> ; ∀k = 1, 2, ..., K, is the capacity of each hop. Based on these results, we studies the DoF aspect of multi-hop networks with multiple-node layers, mainly about achievable lower bound on the sum DoF, by viewing the network as cascaded X channels (XC). Then we analyze the ultimate case where the number of antennas at each relay layer goes to infinity, from which we find that compared with two-hop networks, larger sum DoF can be obtained if the number of hops is no less than three." @default.
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- W1983390976 date "2013-08-01" @default.
- W1983390976 modified "2023-09-23" @default.
- W1983390976 title "An achievable degree of freedom for multi-hop wireless networks under layered TDD constraint" @default.
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- W1983390976 doi "https://doi.org/10.1109/chinacom.2013.6694595" @default.
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