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Published in 2022 at "Wireless Personal Communications"
DOI: 10.1007/s11277-021-09313-2
Abstract: Non-Orthogonal Multiple Access (NOMA) is one of the upsurging various access techniques for beyond 5G networks due to its high spectral efficiency. Combining Multiple-Input and Multiple-Output (MIMO) and NOMA provides significantly effective multiple access with…
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Keywords:
cooperative noma;
sum capacity;
spatial modulation;
noma ... See more keywords
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Published in 2022 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2022.3171049
Abstract: Dirty paper coding (DPC) precoders achieve the sum capacity of Gaussian MIMO broadcast channels. However, most systems employ zero-forcing (ZF) and MMSE precoders that are near-optimal at high SNR if the base station (BS) has…
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Keywords:
capacity;
capacity achieving;
sum capacity;
tex math ... See more keywords
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Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3196654
Abstract: Flying base stations (FlyBSs) can serve space-time varying heterogeneous traffic in the areas, where a deployment of conventional static base stations is uneconomical or unfeasible. We focus on energy consumption of the FlyBSs serving moving…
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Keywords:
sum capacity;
energy;
airship based;
base stations ... See more keywords
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Published in 2021 at "IEEE Transactions on Information Theory"
DOI: 10.1109/tit.2021.3093891
Abstract: In communication networks, cooperative strategies are coding schemes where network nodes work together to improve performance metrics such as the total rate delivered across the network. This work studies encoder cooperation in the setting of…
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Keywords:
average error;
error sum;
maximal average;
error ... See more keywords
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Published in 2022 at "IEEE Transactions on Information Theory"
DOI: 10.1109/tit.2023.3279511
Abstract: This paper investigates the sum-capacity of two-user optical intensity multiple access channels with per-user peak- or/and average-intensity constraints. By leveraging tools from the decomposition of certain maxentropic distributions, we derive several lower bounds on the…
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Keywords:
user optical;
two user;
capacity;
sum capacity ... See more keywords
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Published in 2017 at "Entropy"
DOI: 10.3390/e19090497
Abstract: This paper investigates the sum capacity of a single-cell multi-user system under the constraint that the transmitted signal is adopted from M-ary two-dimensional constellation with equal probability for both uplink, i.e., multiple access channel (MAC),…
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Keywords:
sum capacity;
capacity;
power;
multi user ... See more keywords
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Published in 2022 at "IEEE Wireless Communications Letters"
DOI: 10.48550/arxiv.2204.04915
Abstract: Reducing computational complexity is crucial in optimizing the phase shifts of Intelligent Reflecting Surface (IRS) systems since IRS-assisted communication systems are generally deployed with a large number of reflecting elements (REs). This letter proposes a…
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Keywords:
reflecting surface;
low complexity;
intelligent reflecting;
sum capacity ... See more keywords