Energy-signal quality trade-offs in a WiMAX mobile station with a booster amplifier

TALENTA - Conference on Engineering, Science and Technology 2017

工业技术;自然科学

Suherman^1 ; Mubarakah, N.^1 ; Wiranata, O.^1 ; Kasim, S.T.^1

Electrical Engineering Department, Universitas Sumatera Utara, Indonesia^1

关键词: Booster amplifiers;    Broadband wireless accesss;    Energy consumption optimization;    Mobile applications;    Mobile communications;    Mobile Internet services;    Simulation evaluation;    Subscriber stations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/309/1/012003/pdf
DOI  :  10.1088/1757-899X/309/1/012003

来源: IOP

【 摘 要 】

Worldwide Interoperability for Microwave Access (WiMAX) is a broadband wireless access technology that is able to provide high bit rate mobile internet services. Battery endurance remains a problem in current mobile communication. On the other hand, signal quality determines the successful run of the mobile applications. Energy consumption optimization cannot sacrifice the signal level required by the application to run smoothly. On the contrary, the application should consider battery life time. This paper examines the tradeoffs between energy and signal quality in WiMAX subscriber station by adjusting signal level using a booster amplifier. Simulation evaluations show that an increment of 0.00000104% energy consumption on using amplifier adaptively produces 16.411% signal to noise ratio (SNR) increment and 10.7% bit error rate (BER) decrement. By keeping the amplifier turned on, energy consumption increases up to 0.00000136%, causing the SNR rises to 17.2638% and BER drops to 11.13%. The evaluated application is video streaming, other application may behave differently.