Maximize Saving Transmitted Power in Wireless Communication System Using Adaptive Modulation Technique

Alkasassbeh, Jawdat S.; Al-Qaisi, Aws; Al-Hunaity, Mohammed F.; Alkasassbeh, Jawad

doi:10.15866/irecap.v6i2.8486

Cited by 1 publication

(1 citation statement)

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“…In contrast, reducing power level during saturation, allows to reduce overall consumption, increase battery time and life time of optical and electrical components of the system. Even if several techniques for saving transmitted power in wireless communication system using adaptive modulation are proposed in current literature [11], [12], few works are focused on VLC. An exhaustive power consumption evaluation in High Speed VLC Systems has been provided in [13], while an interesting adaptive model, controlling input waveform of LED lamps for achieving efficient brightness and reduce power consumption, is provided in [14].…”

Section: A Generalities Issues and Related Workmentioning

confidence: 99%

Adaptive Energy Saving Technique with Saturation Avoidance for Outdoor VLC

Costanzo

Loscrì

2022

2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring)

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Saturation of optical receivers, caused by sunlight, represents a major issue in outdoor VLC system design for vehicular applications. This effect reduces maximum communication range, causing performance degradation when transmitter and receiver are in strict proximity. In addition, when saturation phenomena occur, only a fraction of total transmitted power is really exploited by the receiver, resulting in a significant waste of energy. The aim of this work, is to provide a novel analytical perspective, properly validated by experimental tests, in which the effects of saturation are related to the performance of outdoor VLC systems, in terms of signal to noise ratio (SNR). This analysis is further exploited for proposing an adaptive energy saving approach, which decreases the amplitude of transmitting power when saturation phenomena are detected by the receiver. A use case evaluation shows a reduction of 30% on average energy per bit transmitted, without any significant degradation of signal to noise ratio. Conversely, the adaptive control significantly improves SNR when transmitter and receiver are in close proximity and the system is fully approaching saturation.

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Section: A Generalities Issues and Related Workmentioning

confidence: 99%