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- W2264981650 abstract "In this paper, we investigate the impact of channel estimation error on the achievable common rate and error performance of amplify and forward (AF) multi-way relay networks (MWRNs). Assuming lattice codes with large dimensions, we provide the analytical expressions for the end-to-end SNR at the users and obtain upper bounds on the achievable common rate for an AF MWRN. Moreover, considering binary phase shift keying (BPSK) modulation as the simplest case of lattice codes, we obtain the average bit error rate (BER) for a user in an AF MWRN. The analysis shows that the average BER is a linearly increasing function and the achievable common rate is a linearly decreasing function of the channel estimation error. On the other hand, the average BER decreases and the achievable common rate increases with increasing correlation between the true and the estimated channel. Also, we observe that the AF protocol is robust against increasing number of users in terms of error performance. We show that when the decoding user has better channel conditions compared to other users, AF relaying gives a better error performance and common rate. Finally, simulation results are provided to verify the validity of our analysis." @default.
- W2264981650 created "2016-06-24" @default.
- W2264981650 creator A5007829488 @default.
- W2264981650 date "2016-02-01" @default.
- W2264981650 modified "2023-09-25" @default.
- W2264981650 title "Achievable rate and error performance of an amplify and forward multi‐way relay network in the presence of imperfect channel estimation" @default.
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- W2264981650 doi "https://doi.org/10.1049/iet-com.2015.0484" @default.
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