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Cyclic-prefixed single-carrier transmission with reconfigurable intelligent surfaces

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Li, Q.
Wen, M.
Alexandropoulos, G.C.
Kim, K.J.
Poor H.V.

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NO

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Abstract

In this paper, a cyclic-prefixed single-carrier (CPSC) transmission scheme with phase shift keying (PSK) signaling is presented for broadband wireless communications systems empowered by a reconfigurable intelligent surface (RIS). In the proposed CPSC-RIS, the RIS is configured according to the transmitted PSK symbols such that different cyclically delayed versions of the incident signal are created by the RIS to achieve cyclic delay diversity. A practical and efficient channel estimator is developed for CPSC-RIS and the mean square error of the channel estimation is expressed in closed-form. We analyze the bit error rate (BER) performance of CPSC-RIS over frequency-selective Nakagami-m fading channels. An upper bound on the BER is derived by assuming maximum-likelihood detection. Our simulation results in terms of BER corroborate the performance analysis and the superiority of CPSC-RIS over the conventional CPSC without an RIS and orthogonal frequency division multiplexing with an RIS.

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Institute of Electrical and Electronics Engineers (IEEE)

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Computer science, Engineering, Telecommunications

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2022 Joint European Conference on Networks and Communications and 6G Summit (EuCNC/6G Summit)

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10.1109/EuCNC/6GSummit54941.2022.9815627

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