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- W2963669558 abstract "This paper considers a decode-and-forward (DF) multi-way massive multiple-input multiple-output (MIMO) relay system where many users exchange their data with the aid of a relay station equipped with a massive antenna array. We propose a new transmission protocol which leverages successive cancelation decoding and zero-forcing (ZF) at the users. By using properties of massive MIMO, a tight analytical approximation of the spectral efficiency is derived. We show that our proposed scheme uses only half of the time-slots required in the conventional scheme (in which the number of time-slots is equal to the number of users [1]), to exchange data across different users. As a result, the sum spectral efficiency of our proposed scheme is nearly double the one of the conventional scheme, thereby boosting the performance of multi-way massive MIMO to unprecedented levels. To improve the network energy efficiency, we also propose a power allocation scheme which maximizes the energy efficiency under a given peak power constraint at each user and the relay." @default.
- W2963669558 created "2019-07-30" @default.
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- W2963669558 date "2018-05-01" @default.
- W2963669558 modified "2023-10-05" @default.
- W2963669558 title "How to Scale up the Spectral Efficiency of Multi-Way Massive MIMO Relaying?" @default.
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- W2963669558 doi "https://doi.org/10.1109/icc.2018.8422416" @default.
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