Multi-transceiver optical wireless spherical structures for MANETs

Nakhkoob, Behrooz; Bilgi, Mehmet; Yüksel, Murat; Hella, Mona M.

doi:10.1109/jsac.2009.091211

Cited by 49 publications

(20 citation statements)

References 22 publications

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“…During the last several years the scientific community has expressed their interest in the possibility of using free-space optical (FSO) communication technology for 'last mile' broadband access [1,2], campus and metropolitan-area networks interconnection [3], and military communications [4]. This interest stems from the benefits offered by FSO systems over conventional radio frequency (RF) systems such as higher date rate, better security, license-free operation, and electromagnetic interference immunity.…”

Section: Introductionmentioning

confidence: 99%

Error performance analysis for FSO systems with diversity reception and optical preamplification over gamma–gamma atmospheric turbulence channels

Zhao¹,

Han²,

Yi³

2013

Journal of Modern Optics

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Journal of Modern Optics (2013): Error performance analysis for FSO systems with diversity reception and optical preamplification over gamma-gamma atmospheric turbulence channels, Journal of Modern Optics,The error performance was investigated of free-space optical (FSO) systems that use optical preamplifiers and diversity reception in turbulent atmosphere with gamma-gamma distribution. More specifically, assuming that the dominant sources of the receiver noises are the background light and amplifier spontaneous emission noises, we develop an exact bit-error-rate (BER) expression for binary pulse position modulation (BPPM) by a moment-generating function (MGF) derivative-based method. To gain more insight, we also derive a closed-form asymptotic BER expression for BPPM at high received optical power, by which we obtain the diversity and coding gains of the considered systems. Our analytical results lead to the observations that the attained diversity gain only changes with the gamma-gamma distribution parameters and the number of spatial modes collected by the receiver, while independent on the number of temporal modes passed by the optical preamplifiers. We verify the analytical results by Monte Carlo simulations.

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Section: Introductionmentioning

confidence: 99%

Error performance analysis for FSO systems with diversity reception and optical preamplification over gamma–gamma atmospheric turbulence channels

Zhao¹,

Han²,

Yi³

2013

Journal of Modern Optics

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“…Figure 1. QDRP for multiple interfaces [26] We include QoS requirements i.e delay that a route to a destination must satisfy as a part of a request packet [28]. In particular, a request packet has a QoS object extension that includes delay parameters.…”

Section: Qdrp -Proposed Methodologymentioning

confidence: 99%

“…The probability of reaching out to a node from a particular interface is done by mapping beam ID to node ID [18]. [26] We use AlingmentTimer [26] for interface alignment as shown in Figure 5. The interface alignment is done at regular intervals of time.…”

Section: Protocol Implementation On Ns 234mentioning

confidence: 99%

Routing in Optical Mesh Networks - A QoS Perspective

Fauzia¹,

Fatima²

2018

IJASUC

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“…Arrays of photodiodes arranged in an imaging receiver architecture can be used as a solution to this problem [4,[10][11]. However, to reduce photodiode capacitance for maintaining a high speed link and to minimize the overhead required to process the complete image, a switching matrix is required to scan across the entire array and recognize those pixels that are in LOS as shown in Fig.…”

Section: Imaging Receiver Circuit Designmentioning

confidence: 99%

CMOS integrated high speed light sensors for optical wireless communication applications

2012

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This work presents a single link CMOS high data rate receiver to be integrated in imaging diversity sensor arrays for optical wireless communication targeting indoor scenarios. To compete with existing radio frequency links, sensing and transmitting data in the hundreds of Mbits per second and above, the proposed data/light sensor is optimized at both the photodetector and circuit levels to provide 5Gps data rate from a single optical link using low cost, high yield standard CMOS technology. A novel photo-detector structure, Triple Well Interrupted N-finger photodiode, is proposed that can achieve a bandwidth up to 10 GHz at 1.2V reverse bias. To compensate for the decreased responsivity of the photodiode, a wideband, high gain and low noise transimpedance amplifier compatible with the speed-enhanced CMOS photodiode is implemented in 0.13µm CMOS technology. The amplifier chain achieves a measured bit error rate (BER) of 10 -12 at 5 Gbps corresponding to 2.8µA input current in presence of 1pF input capacitance representing the photodiode. The die area is 1106µmx895µm including a transimpedance amplifier (TIA), limiter and buffer and the power dissipation is 68mW from a 1.5V DC supply.

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Multi-transceiver optical wireless spherical structures for MANETs

Cited by 49 publications

References 22 publications

Error performance analysis for FSO systems with diversity reception and optical preamplification over gamma–gamma atmospheric turbulence channels

Error performance analysis for FSO systems with diversity reception and optical preamplification over gamma–gamma atmospheric turbulence channels

Routing in Optical Mesh Networks - A QoS Perspective

CMOS integrated high speed light sensors for optical wireless communication applications

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