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- W2003178840 abstract "Cross-layer breaks away from traditional network design, which can adapt to the dynamically variable wireless channel characters to improve the wireless communication system performance. In this paper, an adaptive cross-layer scheme (BeamformingMIMO) for multi-user system is proposed, which combine multilevel adaptive modulation (AM) at physical layer with truncated automatic repeat request (ARQ) and multi-user diversity at data link layer, and feed backing modulation mode, ARQ request and transmit weight vector from receiver. This paper derives close-form expressions of the system spectral efficiency under outdated feedback. It shows by simulation that for single-usersystem, compared to other cross-layer schemes, the proposed cross-layer scheme can achieve better performance. And under outdated feedback, we also analyze the impact of delay-time; transmit antenna and number of mobile user on the performance of the multi-user system." @default.
- W2003178840 created "2016-06-24" @default.
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- W2003178840 date "2010-08-01" @default.
- W2003178840 modified "2023-09-26" @default.
- W2003178840 title "Performance of adaptive Multi-user MIMO system with imperfect feedback" @default.
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- W2003178840 doi "https://doi.org/10.1109/cmce.2010.5610122" @default.
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