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In this paper, a multi-pair amplify-and-forward (AF) massive MIMO system is investigated, where multiple source users communicate with multiple destination users via a single relay. The achievable rate of the system and its analytical expression are studied for power-scaling laws when ZFT/ZFR algorithm is adopted at the relay. The imperfect channel state information (CSI) is considered and the MMSE...
We study the secrecy outage performance of a dual-hop multiple relay decode-and-forward (DF) cognitive relay network under the interference constraints in this paper, where all relays and the destination are equipped with Κ antennas. All channels we considered in the proposed system experience the Nakagami-m fading, and the selection combining technique is employed at the antennas of all the main...
A multi-pair amplify-and-forward (AF) MIMO system is considered in this paper, in which all source users transmit their information to destination users via a shared relay. With the large N regime, the effect of small-scale fading tends to diminish while the large-scale fading plays a main role in affecting the system performance. The large-scale fading is modeled as generalized-K fading. While the...
A multi-pair two-way amplify-and-forward relaying system is considered in this paper, where the $K$-pair users exchange information within pairs, with the help of a shared relay station. Each user is equipped with a single antenna while the relay station is equipped with a very large number of antennas $N$, where $N\gg2K$. The impact of imperfect channel state information (CSI) due to the channel...
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