Relay-assisted nanoscale communication in the THz band

The bit error rate (BER) performance of a cooperative relaying transmission scheme for wireless nanosensor networks in the terahertz (THz) band is investigated. Nanosensor networks comprising several graphene-based devices deployed at the nanoscale are considered. Both amplify-and-forward (AF) and d...

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Bibliographic Details
Published in:Micro & nano letters 2017-06, Vol.12 (6), p.373-376
Main Authors: Rong, Zhichao, Leeson, Mark Stephen, Higgins, Matthew David
Format: Article
Language:English
Subjects:
AF relaying modes
amplify and forward communication
amplify‐and‐forward relaying modes
BER performance
Bit error rate
Computer simulation
cooperative communication
cooperative relaying transmission scheme
decode and forward communication
decode‐and‐forward relaying modes
DF relaying modes
error statistics
graphene‐based devices
Line of sight
line‐of‐sight channel model
LOS model
Molecular absorption
molecular absorption loss
Monte Carlo method
Monte Carlo methods
Monte Carlo simulation
nanosensors
nanotechnology
path loss
Relay
relay networks (telecommunication)
Relaying
relay‐assisted nanoscale communication
spreading loss
terahertz band
THz band
Variation
wireless nanosensor networks
Wireless networks
wireless sensor networks
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Summary:The bit error rate (BER) performance of a cooperative relaying transmission scheme for wireless nanosensor networks in the terahertz (THz) band is investigated. Nanosensor networks comprising several graphene-based devices deployed at the nanoscale are considered. Both amplify-and-forward (AF) and decode-and-forward (DF) relaying modes are studied. A line-of-sight (LOS) channel model in the THz band is considered which takes into account both spreading loss and molecular absorption loss. Given the high path loss and level of noise from significant random fluctuations through the THz channel, relay-assisted schemes offer advantages in terms of significant performance improvements. To quantify the likely benefits, the predicted BER of the proposed scheme is derived. A simulation of the proposed relay schemes based on the THz LOS channel model utilising a Monte Carlo method is conducted. The results obtained show that a performance improvement of 2.2 dB for AF and of 5 dB for DF is achievable at a target BER of 10−5.
ISSN:1750-0443
1750-0443
DOI:10.1049/mnl.2017.0016