Joint Optimization of the Power-Added Efficiency and the Error-Vector Measurement of 20-GHz pHEMT Amplifier Through a New Dynamic Bias-Control Method

Forestier, S.; Bouysse, P.; Quéré, Raymond; Mallet, Alain; Nébus, Jean-Michel; Lapierre, L.

doi:10.1109/tmtt.2004.825745

Cited by 64 publications

(18 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These differences are averaged over a given, typically large number of symbols and are often shown as a percent of the average power per symbols of the constellation. As such EVM can be mathematically given as [1] …”

Section: Error Vector Magnitudementioning

confidence: 99%

On the Extended Relationships Among EVM, BER and SNR as Performance Metrics

Shafik

Rahman

Islam

2006

2006 International Conference on Electrical and Computer Engineering

502

245

View full text Add to dashboard Cite

Abstract-In this paper, we relate the error vector magnitude (EVM) bit error rate (BER) and signal to noise ratio (SNR). We also present the fact that with such relationship it would be possible to predict or in cases substitute EVM in places of BER or even SNR. In doing so, we first define EVM with normalization so that the definition stands for multi-modulation systems, viz. binary phas shift keying (BPSK), quadrature phase shift keying (QPSK) etc. We also compare among the different performance metrics and show that EVM can be equivalently useful as signal to noise ratio and bit error rate. The relationships are based on stream based communication systems. A few Monte Carlo simulations are carried out to illustrate the performance of EVM based on these relationships.

show abstract

Section: Error Vector Magnitudementioning

confidence: 99%

On the Extended Relationships Among EVM, BER and SNR as Performance Metrics

Shafik

Rahman

Islam

2006

2006 International Conference on Electrical and Computer Engineering

502

245

View full text Add to dashboard Cite

show abstract

“…Therein, the EVM of the OFDM data is calculated with Eq. 7 [54], where N denotes the number of measured symbols, P the maximum normalized power of ideal symbol, S r (n) the normalized received n th symbol which is corrupted by Gaussian noise, and S t (n) the ideally transmitted value of the n th symbol. In the meantime, the calculated EVM from the square root of the reciprocal of SNR [55] also confirms the one calculated by Eq.…”

Section: The Effect Of Injection Coherence On Ofdm Transmission Pementioning

confidence: 99%

Effect of Injection Coherence on Noise and Bandwidth of Long-Cavity Colorless Laser Diode for Digital Modulation and Transmission

Chi

Lin

et al. 2015

IEEE J. Quantum Electron.

View full text Add to dashboard Cite

The weak-resonant-cavity Fabry-Perot laser diode (WRC-FPLD) injection-locked by three master sources with different degrees of coherence and directly modulated by two different digital modulation formats is demonstrated. The injection master coherence shows impact on noise, bandwidth, and modulation performances of the slave WRC-FPLD transmitter. Using the highly coherent master, the injectionlocked WRC-FPLD reduces its relative intensity noise peak at 5 GHz by 18 dB and increases its throughput frequency response by 5 dB. This enables the error-free ON-OFF keying (OOK) transmission at 10 Gb/s with a required receiving power sensitivity of −15 dBm at an error rate of 10 −9 . The eye diagrams simulated from the modified rate equations are also performed to show such improvements. With highly coherent injection-locking, the transmitted error of the WRC-FPLD carried orthogonal frequency division multiplexing (OFDM) data with a modulation bandwidth of 3.1 GHz can be minimized to 1.6 × 10 −13 . In comparison, the master-to-slave injectionlocked WPC-FPLD with partial coherence can also provide an 8-Gb/s OOK transmission with a receiving power sensitivity of −19 dBm at bit-error-rate (BER) of 10 9 . Such a cost-effective colorless source also supports a 16-quadrature-amplitude modulation OFDM transmission at 12.5 Gb/s with a BER of 5.6 × 10 −12 to serve multichannel application in next generation passive optical network.Index Terms-Modulation, injection-locked, coherence, semiconductor lasers, dense wavelength division multiplexed passive optical network (DWDM-PON).

show abstract

“…If X k denotes the reference or transmitted signal and Y k denotes the received (distorted) signal, then Figure 1 shows the error vector E k = Y k − X k . Then the EVM is defined as [9]:…”

Section: Analysis Of Evm For Collision Detectionmentioning

confidence: 99%

Collision detection in IEEE 802.11 networks by error vector magnitude analysis

Aman

Chan

Sikdar

2012

2012 IEEE Global Communications Conference (GLOBECOM)

View full text Add to dashboard Cite

There are two causes of packet losses during a wireless transmission: losses caused by collisions and losses caused by poor channel conditions. The throughput and spatial reuse of IEEE 802.11 based wireless networks, as well as the effectiveness of the rate adaptation algorithms they use, is adversely affected by their inability to determine the real cause of a packet loss. To address this issue, this paper proposes a mechanism based on Error Vector Magnitude (EVM) to discern random channel errors from collisions in wireless networks. The proposed mechanism is based on first developing an analytic model to characterize the EVM of a packet in the presence and absence of a collision. A threshold based classifier is then proposed that selects the threshold value such that the crossover error rate is achieved. Simulation results are presented to demonstrate the accuracy of the proposed collision detection mechanism.

show abstract

Joint Optimization of the Power-Added Efficiency and the Error-Vector Measurement of 20-GHz pHEMT Amplifier Through a New Dynamic Bias-Control Method

Cited by 64 publications

References 15 publications

On the Extended Relationships Among EVM, BER and SNR as Performance Metrics

On the Extended Relationships Among EVM, BER and SNR as Performance Metrics

Effect of Injection Coherence on Noise and Bandwidth of Long-Cavity Colorless Laser Diode for Digital Modulation and Transmission

Collision detection in IEEE 802.11 networks by error vector magnitude analysis

Contact Info

Product

Resources

About