Premium
Performance evaluation of Wi‐Fi and WiMAX over OFDM physical layer
Author(s) -
Ba Papa Ndiaga,
Rodrigues Joel,
Korotaev Valery,
AlMuhtadi Jalal,
Ouya Samuel,
Maiga Amadou Seidou
Publication year - 2019
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.3871
Subject(s) - computer science , orthogonal frequency division multiplexing , robustness (evolution) , fading , physical layer , multiplexing , transmission (telecommunications) , bit error rate , computer network , telecommunications , channel (broadcasting) , wireless , biochemistry , chemistry , gene
Summary Orthogonal frequency division multiplexing (OFDM) is an alternative technology that is constrained to keep up with the increasingly high data transmission rate due to its robustness against selective frequency fading and its resistance to intersymbol interference (ISI). This paper aims to study and optimize its performance, namely, its probability of communication failure and signal‐to‐interference‐plus‐noise ratio (SINR) metrics. The mathematical tool used to perform OFDM evaluation and analysis is the Fourier transform and its properties. The obtained results of those equations led to the demonstration of the probability of communication outage and to notice that the cutoff time occurs after the 10th iteration for values of λ less than or equal to 1. It could also be checked that this period is small if λ exceeds 1 by considering the sensitivity factor. Moreover, for the obtained results, in terms of bit error rate (BER) and SINR, the influence of the modulation on the error vector magnitude (EVM) shows the sensitivity factor Ω presents a key role in the transmission chain.