PER OF ELECTROMAGNETIC NANONETWORKS UNDER SYMMETRIC/ ASYMMETRIC AF RELAYING FOR PLANT MONITORING

Abstract

Electromagnetic nanonetworks are going to play an imperative role in high-resolution agriculture. Monitoring of crop health and detection of emitted volatile organic compounds are key applications among the others. However, the range of nanonetwork, which is very much limited, can be increased with the help of relaying schemes. This paper presents a novel system model for electromagnetic nanonetworks based on amplify-and-forward (AF) relaying for plant monitoring. Furthermore, the packet error rate (PER) has been analyzed to quantify network performance. Specifically, PER of DBPSK and DQPSK modulation has been analyzed under both symmetric and asymmetric relaying schemes. For symmetric relaying, a fading channel from source to relay and relay to destination are both taken as either extended generalized K (EGK) or Fisher-Snedecor (FS) distribution. Whereas for an asymmetric scheme, a fading channel from source to relay and relay to destination are EGK and FS, respectively. Also, for the asymmetric case, FS and EGK fading channels are taken from source to relay and relay to destination, respectively. Again, it is worth mentioning that in every case and for both links, shaping and severity factors of both shadowing and multipath components have been included in the analysis of PER. It is observed that increasing the value of shaping and/or severity causes a decrease in the PER and vice versa. MATLAB-14 was used for simulation purpose.