Reconfigurable Intelligent Surface Empowered Multi-Hop Transmission over Generalized Fading

Vinay Kumar Chapala, S. M. Zafaruddin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


The use of multiple reconfigurable intelligent surfaces (RIS) between a source and destination can enhance the performance of wireless communications over severe shadowing environment by creating line-of-sight (LOS) connectivity. This paper analyzes the performance of a multiple RIS empowered multi-hop transmission for a wireless system. We develop an analytical framework to derive statistical results of the signal-to-noise ratio (SNR) of the multi-RIS communication by considering independent and non-identical double generalized gamma (dGG) fading channels in each hop. We analyze the performance of the considered multi-RIS system by deriving exact analytical expressions of the outage probability, average bit-error rate (BER), and ergodic capacity in terms of Fox's H-function. We present asymptotic analysis and diversity order of the outage probability in the high SNR regime to provide a better insight into the system performance. We use computer simulations to demonstrate the effect of multiple RIS modules, and fading parameters on the RIS-aided multi-hop transmissions for the considered communication system.

Original languageEnglish
Title of host publication2022 IEEE 95th Vehicular Technology Conference - Spring, VTC 2022-Spring - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665482431
StatePublished - 2022
Externally publishedYes
Event95th IEEE Vehicular Technology Conference - Spring, VTC 2022-Spring - Helsinki, Finland
Duration: 19 Jun 202222 Jun 2022

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252


Conference95th IEEE Vehicular Technology Conference - Spring, VTC 2022-Spring

Bibliographical note

Funding Information:
This work was supported in part by the Science and Engineering Research Board, Department of Science and Technology (DST), India under Grant MTR/2021/000890, and SRG/2019/002345.

Publisher Copyright:
© 2022 IEEE.


  • Double generalized fading channels
  • multi-hop
  • performance analysis
  • reconfigurable intelligent surface (RIS)


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