A Dual-Mode Power Amplifier With On-Chip Switch Bias Control Circuits for LTE Handsets

Kim, Bobae; Kwak, Chol-Ho; Lee, Jong-Soo

doi:10.1109/tcsii.2011.2172528

Cited by 23 publications

(4 citation statements)

References 10 publications

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“…A novel switching method is also reported which utilizes the base-collector diode to improve the switching efficiency [29]. Recent work also employs the switching technique integrating PHEMT process on a GaAs HBT power cell [30]. Alternatively a dual output matching network is proposed instead of switching between two power cells.…”

Section: Device Switchingmentioning

confidence: 99%

Energy saving power amplifier design methodologies for mobile wireless communications

Eswaran

Ramiah

Kanesan

et al. 2015

Renewable and Sustainable Energy Reviews

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Section: Device Switchingmentioning

confidence: 99%

Energy saving power amplifier design methodologies for mobile wireless communications

Eswaran

Ramiah

Kanesan

et al. 2015

Renewable and Sustainable Energy Reviews

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“…To model the circuit consumed power of the RF module, we consider a power amplifier array [3,31] which is based on four power amplifiers: a low-power amplifier (LPA) and three high-power amplifiers, HPA 1, HPA 2, and HPA 3, as presented in Figure 4. The power amplifier efficiency is assumed equal for both high-power amplifiers; however, HPA 1 and 2 are designed to transmit up to one fourth and to one half of the maximum transmitted power of HPA 3, respectively.…”

Section: Physical Components Power Consumption Model and Performance mentioning

confidence: 99%

A distributed virtual MIMO coalition formation framework for energy efficient wireless networks

Ramírez¹,

Thompson

Altman

et al. 2015

J Wireless Com Network

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In this paper, we consider a distributed virtual multiple-input multiple-output (MIMO) coalition formation algorithm. Energy savings are obtained in the reverse link by forming multi-antenna virtual arrays for information transmission. Virtual arrays are formed by finding a stable match between two sets of single antenna devices such as mobile stations (MSs) and relay stations (RSs) based on a game theoretic approach derived from the concept of the college admissions problem. Thus, power savings are obtained through multi-antenna arrays by implementing the concepts of spatial diversity and spatial multiplexing for reverse link transmission. We focus on optimizing the overall consumed power rather than the transmitted power of MSs and RSs. Furthermore, it is shown analytically and by simulation that when the overall consumed power is considered, the energy efficiency of the single antennas devices is not always improved by forming a virtual MIMO array. Hence, single antenna devices may prefer to transmit on their own when channel conditions are favorable. In addition, the simulation results show that the framework we propose provides comparable energy savings and a lower implementation complexity when compared to a centralized exhaustive search approach.

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“…A low-and high-power dual mode PA for LTE, with on-chip switch bias control was reported in [10]. It uses a switching technique to improve the efficiency at low output power.…”

Section: Introductionmentioning

confidence: 99%

An Ultra-Wideband Digitally Programmable Power Amplifier With Efficiency Enhancement for Cellular and Emerging Wireless Communication Standards

Albasha

Clifton²,

Jingu

et al. 2016

IEEE Trans. Circuits Syst. I

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A Dual-Mode Power Amplifier With On-Chip Switch Bias Control Circuits for LTE Handsets

Cited by 23 publications

References 10 publications

Energy saving power amplifier design methodologies for mobile wireless communications

Energy saving power amplifier design methodologies for mobile wireless communications

A distributed virtual MIMO coalition formation framework for energy efficient wireless networks

An Ultra-Wideband Digitally Programmable Power Amplifier With Efficiency Enhancement for Cellular and Emerging Wireless Communication Standards

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