Search results for: Chao-Chin Yang

Items from 1 to 20 out of 50 results

article

Using Stuffed Quadratic Congruence Codes for SAC Labels in Optical Packet Switching Network

Kai-Sheng Chen, Chao-Chin Yang, Jen-Fa Huang

IEEE Communications Letters > 2015 > 19 > 7 > 1093 - 1096

While optical codes in optical code-division multiple access (OCDMA) has been extensively investigated, research of optical coding labels in optical multi-protocol label switching (MPLS) network is relatively unexplored. This paper studies optical labels with spectral-amplitude coding (SAC) for optical packet switching (OPS) network. The research focuses on implementing two different codes in optical...

chapter

Design and Implementation of HPC-SA in OpenStack Cloud Platform

Hsin Tse Lu, Chia Hung Kao, Po Hsuan Wu, Chao Chin Yang, more

2015 Seventh International Conference on Computational Intelligence, Modelling and Simulation (CIMSim) > 55 - 60

2015 Seventh International Computational Intelligence, Modelling and Simulation (CIMSim)

Private cloud application with on-premise model offers benefits for security, reliability and high performance. However, not all SMBs and enterprises have enough resources to host an appliance or service. Private cloud application with off- premise model offers a different deployment option, it's called: Hosted Private Cloud. In this work, HPC-SA (Hosted Private Cloud Storage Application) for application...

chapter

Orthogonal stacked composite M-sequence labels for quick packet routing over optical MPLS network

Sheng-Hui Meng, Kai-Sheng Chen, Jen-Fa Huang, Chao-Chin Yang

2015 IEEE 28th Canadian Conference on Electrical and Computer Engineering (CCECE) > 908 - 913

2015 IEEE 28th Canadian Conference on Electrical and Computer Engineering (CCECE)

In this paper, we construct a composite label sets for optical multi-protocol label switching (MPLS) network. Relatively prime lengths maximal-length (M-sequence) codes are taken to compose into spectral-amplitude coding (SAC) labels. These composite M-labels possess good orthogonality and are compatible with packet labels stacking. With correlation subtraction scheme in packet routing node, local...

chapter

Error performance of BPSK-modulated radio transmissions over SQC-coded optical CDMA network

Chao-Chin Yang, Jia-Cyuan Kuo, Jen-Fa Huang, Kai-Sheng Chen

2015 IEEE 28th Canadian Conference on Electrical and Computer Engineering (CCECE) > 914 - 918

2015 IEEE 28th Canadian Conference on Electrical and Computer Engineering (CCECE)

Stuffed quadratic congruence (SQC) codes are used for radio-over-fiber (RoF) scheme based on spectral-amplitude-coding (SAC) optical CDMA network for interference elimination. The binary phase-shift keying (BPSK) signal is modulated on a radio frequency (RF) carrier. And the system is simulated by the software of Opti-system. The simulated error rate performance of SQC codes is compared with former...

chapter

Open Stack Secure Enterprise File Sync and Share Turnkey Solution

Yen-Hung Kuo, Tzu-Wei Yeh, Guang-Yan Zheng, Jyun-Kai Wu, more

2014 IEEE 6th International Conference on Cloud Computing Technology and Science > 1015 - 1020

2014 IEEE 6th International Conference on Cloud Computing Technology and Science (CloudCom)

The Enterprise File Sync and Share (EFSS) is one of the most important services to provide enterprises' employees with cloud file sync, share, and collaboration services. To take enterprises' concerns into account, such as security, privacy, compliance, and regulation, the existing EFSS solutions are either using private (on-premise) or hybrid cloud service model to provide their services. They usually...

article

Radio Transmissions over Residue-Stuffed-QC-Coded Optical CDMA Network

Chao-Chin Yang, Jen-Fa Huang, Hsuan-Hao Chang, Kai-Sheng Chen

IEEE Communications Letters > 2014 > 18 > 2 > 329 - 331

Residue stuffed quadratic congruence (RSQC) codes are proposed for radio-over-fiber (RoF) scheme based on spectral-amplitude-coding (SAC) optical code-division multiple-access (OCDMA) networks. These new codes generated from residue method can enlarge the code space, and the decoder of this new code is cost-effective and suitable for realization. The error rate performance of the proposed RSQC code...

chapter

Structuring waveguide-grating routers with post-switching coding to secure optical CDMA network access

Jen-Fa Huang, Sheng-Hui Meng, Chao-Chin Yang, Ying-Chen Lin

2013 International Conference on Communications, Circuits and Systems (ICCCAS) > 2 > 130 - 134

2013 International Conference on Communications, Circuits and Systems (ICCCAS)

Optical code-division multiple-access (OCDMA) technique has been considered as a good candidate to provide optical layer security and regards as an important benefit to the enhanced security. In this paper, an enhanced security mechanism is structured over spectral-amplitude coding (SAC) scheme of OCDMA network coder/decoders (codecs). The network security is obtained through pseudo-noise (PN) type...

chapter

BPSK-modulated radio transmissions over optical CDMA network for MAI elimination

Chao-Chin Yang, Kai-Sheng Chen, Jen-Fa Huang, Huan-Hao Chang

2013 International Conference on Communications, Circuits and Systems (ICCCAS) > 2 > 135 - 138

2013 International Conference on Communications, Circuits and Systems (ICCCAS)

We describe the implementation of radio-over-fiber (ROF) techniques with a combination of spectral-amplitude-coding optical code-division-multiple-access (SAC-OCDMA). The architecture of proposed fiber-radio network is presented in details where the radio frequency (RF) modulated signal is up-converted to the spectrum-coded optical carriers. System evaluation is analyzed by deriving the average bit...

chapter

Using phase inversion to compensate fiber nonlinearity in Spectral-Amplitude Coding OCDMA network

Jen-Fa Huang, Kai-Sheng Chen, Chao-Chin Yang

2013 8th International Conference on Communications and Networking in China (CHINACOM) > 792 - 795

2013 8th International Conference on Communications and Networking in China (CHINACOM)

Self-phase modulation (SPM) and cross-phase modulation (SPM) are leading nonlinear transmission penalty in Spectral-Amplitude Coding optical CDMA (SAC-OCDMA) systems. In nonlinear optical media, a phenomenon of the intensity dependence of the refractive index occurs through SPM or XPM, which leads to spectral broadening of optical pulses and therefore degrade system performance. A novel scheme for...

article

Food as ego-protective remedy for people experiencing shame. Experimental evidence for a new perspective on weight-related shame

Ying-Hsien Chao, Chao-Chin Yang, Wen-Bin Chiou

Appetite > 2012 > 59 > 2 > 570-575

The well-explored association between shame and bulimia is based on research with clinical samples, which limits its generalizability. Moreover, these correlational studies are unable to draw clear conclusions about causality. To fill this gap, we conducted two experimental studies to examine whether shame elicits a desire for food in nonclinical participants. Compared with controls, participants...

article

How teachers support university students’ lifelong learning development for sustainable futures: The student's perspective

Ya-Hui Su, Li-Yia Feng, Chao-Chin Yang, Tzu-Ling Chen

Futures > 2012 > 44 > 2 > 158-165

The purpose of this study was to explore the nature of teaching practices for developing lifelong learners from the perspective of university students. The nature of lifelong learning focuses on what is possible in the future as opposed to what has happened in the past. A lack of analysis of the teaching process from the student's perspective may widen the distance between the teaching process and...

article

Construction of One-Coincidence Sequence Quasi-Cyclic LDPC Codes of Large Girth

Jen-Fa Huang, Chun-Ming Huang, Chao-Chin Yang

IEEE Transactions on Information Theory > 2012 > 58 > 3 > 1825 - 1836

One approach for designing the one-coincidence sequence (OCS) low-density parity-check (LDPC) codes of large girth is investigated. These OCS-LDPC codes are quasi-cyclic, and their parity-check matrices are composed of circulant permutation matrices. Generally, the cycle structures in these codes are determined by the shift values of circulant permutation matrices, and the existence of cycles in the...

article

Optical CDMA-Based Fiber-Radio Networks with Improved Power Efficiency

Chao-Chin Yang

IEEE Transactions on Communications > 2012 > 60 > 3 > 810 - 816

A bi-directional fiber-radio network based on spectral-amplitude-coding (SAC) optical code-division multiple access (OCDMA) with interference elimination is proposed. This scheme uses hybrid ring/star topology with partial self-healing ability and its key feature is the elimination from the addition of direct current signal before the optical encoding process. Therefore, as compared to the previous...

article

Non-volatile memory reduction based on 1-D memory space mapping of a specific set of QC-LDPC codes

Chung-Ping Young, Chung-Chu Chia, Chao-Chin Yang, Chung-Ming Huang

EURASIP Journal on Wireless Communications and Networking > 2012 > 2012 > 1 > 1-12

Supporting a great diversity of multi-rate H-matrices for multiple communication protocols requires a large amount of non-volatile memory, which may consume a large silicon area or logic elements and constrain the implementation of an overall decoder. Therefore, schemes for memory reduction are necessary to make the parity-check storage more compact. This study proposes a specific set of quasi-cyclic...

article

Code Space Enlargement for Hybrid Fiber Radio and Baseband OCDMA PONs

Chao-Chin Yang

Journal of Lightwave Technology > 2011 > 29 > 9 > 1394 - 1400

A hybrid analog and digital passive optical network based on optical code division multiple access is presented, and a code generation method is proposed to increase the number of codes for existing code families with fixed and ideal in-phase cross correlations. When code families with cyclic properties are used by this code generation method, compact encoders based on arrayed waveguide gratings can...

article

Wavelength Division Multiplexing/Spectral Amplitude Coding Applications in Fiber Vibration Sensor Systems

Hsu-Chih Cheng, Chung-Hao Wu, Chao-Chin Yang, Yao-Tang Chang

IEEE Sensors Journal > 2011 > 11 > 10 > 2518 - 2526

This paper presents a wavelength division multiplexing/spectral amplitude coding system with optical code-division multiple-access, for applications using fiber vibration sensors. The device makes use of fiber Bragg grating (FBG) etching on optical fibers to provide encoding/decoding functionality. According to the orthogonal properties of spectral amplitude coding (SAC) using m-sequence code, the...

chapter

Multiple interference suppression with CPS coding scheme over asynchronous optical CDMA system

Jen-Fa Huang, Da-Jiun Nieh, Chao-Chin Yang

2010 IEEE International Conference on Communication Systems > 189 - 193

2010 12th IEEE International Conference on Communication Systems (ICCS 2010)

A Complete complementary/prime/shifted prime (CPS) code family for the optical code-division multiple-access (OCDMA) system is proposed. Based on the ability of complete complementary (CC) code, the multiple-access interference (MAI) can be eliminated via Spectral Amplitude Coding (SAC) OCDMA system under asynchronous transmission. By utilizing the shifted prime (SP) code in the SAC scheme, the hardware...

article

Performance analysis of WS-EWC coded optical CDMA networks with/without LDPC codes

Chun-Ming Huang, Jen-Fa Huang, Chao-Chin Yang

Optical Fiber Technology > 2010 > 16 > 5 > 265-270

One extended Welch-Costas (EWC) code family for the wavelength-division-multiplexing/spectral-amplitude coding (WDM/SAC; WS) optical code-division multiple-access (OCDMA) networks is proposed. This system has a superior performance as compared to the previous modified quadratic congruence (MQC) coded OCDMA networks. However, since the performance of such a network is unsatisfactory when the data bit...

article

Wavelength–time optical CDMA scheme adopting commercial 2m×2m arrayed waveguide gratings

Chao-Chin Yang

Optical Fiber Technology > 2010 > 16 > 4 > 187-191

One new code family with asymptotically optimal cardinality is proposed for high-speed OCDMA networks. This code family has short code lengths and can adopt commercial 2 ^m ×2 ^m arrayed waveguide gratings for coder implementation (m is positive integer). The performance analysis shows that the proposed code family has improved spectral efficiencies as compared to wavelength/time codes...

article

Substitution of healthy for unhealthy beverages among college students. A health-concerns and behavioral-economics perspective

Chao-Chin Yang, Wen-Bin Chiou

Appetite > 2010 > 54 > 3 > 512-516

Excessive intake of sugar-sweetened beverages by undergraduates is closely related to the increasing prevalence of obesity, making investigations of the substitution of healthy for unhealthy beverages imperative. According to the concept of price elasticity in behavioral economics, the choice of healthy over unhealthy behaviors is facilitated by increasing the cost of less-healthy alternatives or...

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INFONA - science communication portal

Search results for: Chao-Chin Yang

Using Stuffed Quadratic Congruence Codes for SAC Labels in Optical Packet Switching Network

Design and Implementation of HPC-SA in OpenStack Cloud Platform

Orthogonal stacked composite M-sequence labels for quick packet routing over optical MPLS network

Error performance of BPSK-modulated radio transmissions over SQC-coded optical CDMA network

Open Stack Secure Enterprise File Sync and Share Turnkey Solution

Radio Transmissions over Residue-Stuffed-QC-Coded Optical CDMA Network

Structuring waveguide-grating routers with post-switching coding to secure optical CDMA network access

BPSK-modulated radio transmissions over optical CDMA network for MAI elimination

Using phase inversion to compensate fiber nonlinearity in Spectral-Amplitude Coding OCDMA network

Food as ego-protective remedy for people experiencing shame. Experimental evidence for a new perspective on weight-related shame

How teachers support university students’ lifelong learning development for sustainable futures: The student's perspective

Construction of One-Coincidence Sequence Quasi-Cyclic LDPC Codes of Large Girth

Optical CDMA-Based Fiber-Radio Networks with Improved Power Efficiency

Non-volatile memory reduction based on 1-D memory space mapping of a specific set of QC-LDPC codes

Code Space Enlargement for Hybrid Fiber Radio and Baseband OCDMA PONs

Wavelength Division Multiplexing/Spectral Amplitude Coding Applications in Fiber Vibration Sensor Systems

Multiple interference suppression with CPS coding scheme over asynchronous optical CDMA system

Performance analysis of WS-EWC coded optical CDMA networks with/without LDPC codes

Wavelength–time optical CDMA scheme adopting commercial 2m×2m arrayed waveguide gratings

Substitution of healthy for unhealthy beverages among college students. A health-concerns and behavioral-economics perspective

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