SINR Analysis of Non-Regenerative Multihop Links with Asymptotically Large Hop Count

Taneli Riihonen, Risto Wichman

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


We study the physical-layer performance of a wideband multihop system in which a long chain of amplify-and-forward relays is used for routing orthogonal frequency division multiplexing (OFDM) symbols from a source to a destination. Especially, the symbols are modulated in the source and demodulated in the destination while the relays simply forward respective waveforms with scalar amplification. We first conclude that the power-delay profile (PDP) of the effective end-to-end channel in such a system converges to a specific bell-shaped function when each per-hop channel in the link is modelled with a uniform or exponential PDP. We then derive new closed-form expressions for evaluating the signal-to-interference-and-noise ratio (SINR) of the system in the case of an asymptotically large hop count.

Original languageEnglish
Title of host publication2017 IEEE 85th Vehicular Technology Conference, VTC Spring 2017 - Proceedings
Number of pages5
ISBN (Electronic)9781509059324
Publication statusPublished - 14 Nov 2017
MoE publication typeA4 Article in a conference publication
EventIEEE Vehicular Technology Conference - Sydney, Australia
Duration: 4 Jun 20177 Jun 2017
Conference number: 85


ConferenceIEEE Vehicular Technology Conference
Abbreviated titleVTC Spring

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