Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Proposed Model for Performance Analysis of Fourth-generation Mobile Wireless Communication System

Weihua Li, Yang-Han Lee, Yi-Lun Chen, Hsien-Wei Tseng, and Cheng-Fu Yang

(Received October 21, 2020; Accepted February 3, 2021)

Keywords: IEEE 802.16m, long term evolution (LTE), channel model, orthogonal frequency division multiple access (OFDMA)

Both long-term evolution (LTE) and IEEE 802.16m technologies have the advantages of a high transmission rate and wide transmission bandwidth, and they play essential roles in modern mobile wireless communication systems. The information transmission processes between mobile users and base stations inevitably involve some propagation losses. The losses include shadow fading loss due to blocking by buildings and obstacles and the Doppler effect caused by the relative motion of base stations and mobile users, and these effects result in signal fading at the receiver terminals. To maintain good system performance and service quality, the selection of a suitable modulation format is necessary when wireless signals are transmitted. Different traffic services have their own requirements of service quality. Based on the specifications of the IEEE 802.16m and LTE systems, we study their performance when the system parameters are varied. The system parameters include the system bandwidth, the transmitting powers of the base station and mobile, the antenna heights, the orthogonal frequency division multiplexing (OFDM) parameters, and the system load. We also analyze the system performances of the system bit error rate and block error rate due to the effects of path loss and noise.

Corresponding author: Yang-Han Lee, Cheng-Fu Yang

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