Optimal Photon Counting Receiver for Sub-Dead-Time Signal Transmission

Huang, Shenjie; Patanwala, Sarrah M.; Kosman, John; Henderson, Robert K.; Safari, Majid

doi:10.1109/jlt.2020.3000723

Cited by 25 publications

(25 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dead time of the former type of SPAD is constant, whereas for the latter the photons arriving during the dead time can extend its duration [16]. Dead time can significantly degrade the performance of the SPAD-based receiver when the incident light intensity is relatively high because of the nonlinear distortion caused by the SPAD saturation [15], [17].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hybrid SPAD/PD Receiver for Reliable Free-Space Optical Communication

Huang

Safari

2020

IEEE Open J. Commun. Soc.

Self Cite

View full text Add to dashboard Cite

Free-space optical (FSO) communication provides wireless optical connectivity with high data rates and low-cost implementation; however, its performance is strongly influenced by the power attenuation due to the infrequent adverse weather conditions. This paper proposes a novel highly sensitive dual-mode receiver comprising an array of single-photon avalanche diodes (SPADs) and a PIN photodiode (PD) to enhance the availability of FSO links. In adverse weather conditions, the receiver operates in the SPADmode; whereas, in the clear weather conditions, the receiver works in the PD-mode. A hybrid receiver controller is employed in the proposed receiver to adaptively control the switching process based on the received light levels. The adaptive controller also adjusts the incident photon rate of the SPAD array using a variable optical attenuator (VOA) to optimize the performance of the SPAD unit. Our extensive performance analysis illustrates the superior achievable data rates of the proposed receiver under various weather conditions compared to the traditional FSO receivers with either PD or SPAD array.

show abstract

Section: Introductionmentioning

confidence: 99%

“…By substituting the determined transmittance of the VOA (19) or (27) into (17) and considering a BER target of P e,th , after some mathematical manipulations, the maximum achievable data rate of the SPAD array can be written as…”

mentioning

confidence: 99%

Hybrid SPAD/PD Receiver for Reliable Free-Space Optical Communication

Huang

Safari

2020

IEEE Open J. Commun. Soc.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Content may change prior to final publication. (18) This is because, when the desired number of detected photons is greater than the number of available microcells, e.g. N photon (n) > α active (n)N cells , increasing the instantaneous power of the transmitted signal would not increase the number of detected photons due to the limited number of microcells.…”

Section: Pre-equalization Methodsmentioning

confidence: 99%

“…In [17], [18], a linear post-equalization method was studied to mitigate the interference caused by the recovery period based on the photon arrival time information. However, this approach is complex and the inactive periods of individual SPADs were tracked.…”

Section: Introductionmentioning

confidence: 99%

Signal Pre-Equalization in a Silicon Photomultiplier-Based Optical OFDM System

Ahmed

Collins

2021

IEEE Access

View full text Add to dashboard Cite

In this paper, the performance of a new time domain signal pre-equalization method for use with optical orthogonal frequency division multiplexing (OFDM) and a silicon photomultiplier (SiPM) based receiver is studied. A SiPM contains a large array of microcells and each microcell is able to detect single photons. Therefore, a SiPM can be used to create arguably the most sensitive optical receiver, which can detect light intensity signals by counting the number of arriving photons within each signal sampling period. However, each photon detection triggers an avalanche-and-quenching process and the related microcell becomes inactive for a recovery time of several nanoseconds. Consequently, any photons arriving during this period cannot be detected. This effect can cause a non-linear distortion of the received signal and, when the OFDM sampling period is short, also introduces interference between signal samples. In this paper, a new signal pre-equalization method is specifically designed to compensate for the impact of the finite recovery time. In this method, the number of active microcells during the transmission of each OFDM signal sample is first estimated. Then, the amplitude of the time domain signal sample is pre-adjusted based on the predicted fraction of microcells that are active. Using this approach, the negative impacts of the recovery time of the microcells are significantly reduced. The results that are presented show that when this new form of pre-equalization is used the bit error rate (BER) performance of the system is improved for a wide range of irradiance levels.

show abstract

“…For very high data rates where the deadtime limitation induces intersymbol interference,[61] proposed an optimal signal detection approach, based on the number of counts and arrival times of the photons. Also, appropriate signaling schemes were proposed in[37],[62] for the case of limited Tx/Rx modulation BW with respect to the data rate 8.…”

mentioning

confidence: 99%

Parameter Optimization for an Underwater Optical Wireless Vertical Link Subject to Link Misalignments

Ijeh

Khalighi

Hranilovic

2021

IEEE J. Oceanic Eng.

View full text Add to dashboard Cite

We consider transmitter-receiver (Tx-Rx) parameter optimization for a vertical underwater wireless optical communication link under misalignment conditions. The Tx is assumed to use a light-emitting diode while the Rx uses a silicon photomultiplier that allows a high Rx sensitivity. We consider two typical application scenarios and investigate optimization of the Tx and the Rx parameters to optimize the link performance in terms of outage probability. We derive accurate analytical expressions for the distribution of the channel attenuation accounting for link misalignments, which allows for the evaluation of the link performance in terms of bit-error-rate and outage probability without resorting to costly Monte Carlo simulations. Through numerical results, we show and discuss the impact of parameter optimization on the link performance in different link configurations and for various misalignment conditions. In particular, the presented results show the significant performance improvement resulting from optimizing the Tx beam divergence and the Rx FoV in the presence of pointing errors.

show abstract

Optimal Photon Counting Receiver for Sub-Dead-Time Signal Transmission

Cited by 25 publications

References 19 publications

Hybrid SPAD/PD Receiver for Reliable Free-Space Optical Communication

Hybrid SPAD/PD Receiver for Reliable Free-Space Optical Communication

Signal Pre-Equalization in a Silicon Photomultiplier-Based Optical OFDM System

Parameter Optimization for an Underwater Optical Wireless Vertical Link Subject to Link Misalignments

Contact Info

Product

Resources

About