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- Title
Performance Improvements in SNR of a Multipath Channel Using OFDM-MIMO.
- Authors
Enoch, Sharmini; Ifiok Otung
- Abstract
The Non Line of Sight (NLOS) broadband wireless access provided by Worldwide Interoperability for Microwave Access (WiMAX) operating in 2-11 GHz frequency is susceptible to the effects of multipath propagation, diffraction fading, vegetation attenuation, shadowing loss etc. In order to overcome these effects effective fade mitigation techniques, have to be implemented. The Orthogonal Frequency Division Multiplexing-Multiple Input Multiple Output (OFDM-MIMO) is an efficient method that helps in combatting the fading and providing higher SNR to the WiMAX system. According to the IEEE 802.16 specification, for QPSK modulation, a threshold SNR of 6 dB is required for the link to operate. In the present work the use of OFDM-MIMO achieves a SNR above this operating threshold.
- Subjects
BROADBAND communication systems; IEEE 802.16 (Standard); ORTHOGONAL frequency division multiplexing; MIMO systems; SIGNAL-to-noise ratio
- Publication
International Journal of Electronics & Telecommunications, 2023, Vol 69, Issue 4, p769
- ISSN
2081-8491
- Publication type
Article
- DOI
10.24425/ijet.2023.147700