TY - JOUR
T1 - Accurate Closed-Form Approximations to Channel Distributions of RIS-Aided Wireless Systems
AU - Yang, Liang
AU - Meng, Fanxu
AU - Wu, Qingqing
AU - Costa, Daniel Benevides da
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2020
Y1 - 2020
N2 - This paper proposes highly accurate closed-form approximations to channel distributions of two different reconfigurable intelligent surface (RIS)-based wireless system setups, namely, dual-hop RIS-aided (RIS-DH) scheme and RIS-aided transmit (RIS-T) scheme. Differently from previous works, the proposed approximations reveal to be very tight for arbitrary number N of reflecting metasurface’s elements. Our findings are then applied to the performance analysis of the considered systems, in which the outage probability, bit error rate, and average channel capacity are derived. Results show that the achievable diversity orders Gd for RIS-DH and RIS-T schemes are N-1
AB - This paper proposes highly accurate closed-form approximations to channel distributions of two different reconfigurable intelligent surface (RIS)-based wireless system setups, namely, dual-hop RIS-aided (RIS-DH) scheme and RIS-aided transmit (RIS-T) scheme. Differently from previous works, the proposed approximations reveal to be very tight for arbitrary number N of reflecting metasurface’s elements. Our findings are then applied to the performance analysis of the considered systems, in which the outage probability, bit error rate, and average channel capacity are derived. Results show that the achievable diversity orders Gd for RIS-DH and RIS-T schemes are N-1
UR - http://hdl.handle.net/10754/664344
UR - https://ieeexplore.ieee.org/document/9144510/
U2 - 10.1109/LWC.2020.3010512
DO - 10.1109/LWC.2020.3010512
M3 - Article
SN - 2162-2345
SP - 1
EP - 1
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
ER -