The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform

Paul R Prucnal - One of the best experts on this subject based on the ideXlab platform.

  • secure communication in Fiber Optic Networks
    Emerging Trends in ICT Security, 2014
    Co-Authors: Bhavin J Shastri, Paul R Prucnal
    Abstract:

    Providing data security in the Optical layer enables low latency data encryption and enlarges the capacity for secure data transmission. As the demand for both secure and high speed transmission grows dramatically, secure data transmission is pushing the requirements for processing speed and network capacity. As Fiber-Optic systems form the backbone of communication Networks, Optical approaches for protecting the network security increases the available capacity of the network. Moreover, compared to electric circuits, Fiber-Optic systems are immune to electromagnetic interference and have high processing speeds. In this chapter, we discuss using Fiber-Optic-based techniques to defend against threats in the network, including Optical encryption, Optical code-division multiple access (CDMA), Optical key distribution, Optical steganography, anti-jamming, and Optical chaos-based communication. These approaches are categorized by their different applications for protecting the properties of network security, including confidentiality, privacy, and availability.

  • Optical layer security in Fiber-Optic Networks
    IEEE Transactions on Information Forensics and Security, 2011
    Co-Authors: Mable P. Fok, Zhexing Wang, Yanhua Deng, Paul R Prucnal
    Abstract:

    The physical layer of an Optical network is vulnerable to a variety of attacks, including jamming, physical infrastructure attacks, eavesdropping, and interception. As the demand for network capacity grows dramatically, the issue of securing the physical layer of Optical network cannot be overlooked. In this survey paper, we discuss the security threats in an Optical network as well as present several existing Optical techniques to improve the security. In the first part of this paper, we discuss various types of security threats that could appear in the Optical layer of an Optical network, including jamming, physical infrastructure attacks, eavesdropping, and interception. Intensive research has focused on improving Optical network security, in the above specific areas. Real-time processing of the Optical signal is essential in order to integrate security functionality at the physical layer while not undermining the true value of Optical communications, which is its speed. Optical layer security benefits from the unique properties of Optical processing—instantaneous response, broadband operation, electromagnetic immunity, compactness, and low latency. In the second part of this paper, various defenses against the security threats outlined in this paper are discussed, including Optical encryption, Optical code-division multiple access (CDMA) confidentiality, self-healing survivable Optical rings, anti-jamming, and Optical steganography.

  • Physical layer security in Fiber-Optic Networks using Optical signal processing
    2009 Asia Communications and Photonics conference and Exhibition (ACP), 2009
    Co-Authors: Paul R Prucnal, Mable P. Fok, Yanhua Deng, Zhen Wang
    Abstract:

    Using Optical processing techniques, we experimentally enhance the physical layer security of Optical communication systems. We exploit Optical encryption using Fiber nonlinearity to achieve real time data encryption. By implementing interleaved waveband switching modulation and variable two-code keying to the system, the security of the data is further enhanced. Based on spread spectrum, we also demonstrate Optical steganography such that the stealth signal is transmitted underneath system noise. Optical steganography in WDM and Optical CDMA systems is experimentally demonstrated. We also propose and study Optical CDMA-based backup channels that improve service availability without wasting the bandwidth in the backup channel. The multi-layered security provided improves the confidentiality and availability of the network.

  • ultrafast all Optical code division multiple access cdma Fiber Optic Networks
    Computer Networks and Isdn Systems, 1994
    Co-Authors: W C Kwong, Paul R Prucnal
    Abstract:

    Abstract With the advanced development of Fiber-Optics, the large bandwidth-expansion required by spread spectrum code-division multiple-access (CDMA) can now be accomodated by using a Fiber-Optic channel for transmission and incoherent Optical signal processing for code generation and correlation. Optical synchronous CDMA (S/CDMA), a synchronous transmission format, is introduced and compared with Optical (asynchronous) CDMA. Using modified prime sequence codes, S/CDMA is shown to accomodate a larger number of subscribers and more simultaneous users than CDMA. A two-user experiment demonstrating the feasibility of Optical S/CDMA is performed at 10 Mbit/s (500 Mchip/s), using Optical signal processing. (A chip is a bit-representation component; please see Section 2.) An environment in which S/CDMA would be particularly suited is also discussed. In addition, recent research shows that the feasibility of Optical CDMA is also determined by the architecture of the Optical encoders/decoders. The coding architecture affects, for example, the amount of power loss and length of Optical delays associated with code sequence generation and correlation, which, in turn, affect the power budget, size, and cost of an Optical CDMA system. Therefore, a new, modified 2 n coding architecture is proposed and compared with prime and 2 n coding architectures. Study shows that the modified 2 n architecture performs the best and is particularly suitable for ultrafast all-Optical processing and waveguides implementation for the future all-Optical CDMA Networks. A 100 Mbit/s Optical CDMA experiment in free space demonstrating the feasibility of the modified 2 n coding architecture, using a serial combination of 50/50 beam splitters and retroreflectors, at 10 Tchip/s (i.e., 100,000 chip/bit) with 100 fs laser pulses is also reported.

Horace P Yuen - One of the best experts on this subject based on the ideXlab platform.

  • quantum noise randomized data encryption for wavelength division multiplexed Fiber Optic Networks
    Physical Review A, 2005
    Co-Authors: Eric Corndorf, Chuang Liang, Gregory S Kanter, Prem Kumar, Horace P Yuen
    Abstract:

    We demonstrate high-rate randomized data-encryption through Optical Fibers using the inherent quantum-measurement noise of coherent states of light. Specifically, we demonstrate 650 Mbit/s data encryption through a 10 Gbit/s data-bearing, in-line amplified 200-km-long line. In our protocol, legitimate users (who share a short secret key) communicate using an M-ry signal set while an attacker (who does not share the secret key) is forced to contend with the fundamental and irreducible quantum-measurement noise of coherent states. Implementations of our protocol using both polarization-encoded signal sets as well as polarization-insensitive phase-keyed signal sets are experimentally and theoretically evaluated. Different from the performance criteria for the cryptographic objective of key generation (quantum key-generation), one possible set of performance criteria for the cryptographic objective of data encryption is established and carefully considered.

  • quantum noise protected data encryption for wdm Fiber Optic Networks
    ACM Special Interest Group on Data Communication, 2004
    Co-Authors: Eric Corndorf, Chuang Liang, Gregory S Kanter, Prem Kumar, Horace P Yuen
    Abstract:

    We demonstrate high data-rate quantum-noise{protected data encryption through Optical Fibers using coherent states of light. Specifically, we demonstrate 650Mbps data encryption through a 10Gbps data-bearing, in-line amplified 200km-long line. In our protocol, legitimate users (who share a short secret-key) communicate using an M-ry signal set while an attacker (who does not share the secret-key) is forced to contend with the fundamental and irreducible quantum-measurement noise of coherent states. Implementations of our protocol using both polarization-encoded signal sets as well as polarization-insensitive phase-keyed signal sets are experimentally and theoretically evaluated. Different from the performance criteria of the cryptographic objective of key generation (quantum key generation), the performance criteria of data encryption are established and carefully considered.

Bruce Nyman - One of the best experts on this subject based on the ideXlab platform.

  • flexibility in submarine Fiber Optic Networks invited
    IEEE\ OSA Journal of Optical Communications and Networking, 2015
    Co-Authors: Bruce Nyman
    Abstract:

    Submarine Networks are increasing flexibility in the undersea plant by adopting Optical add-drop multiplexing technologies similar to those deployed in terrestrial Networks. We will examine the different technologies, applications, and operating issues involved in implementing flexibility in submarine Networks.

  • flexibility in submarine Fiber Optic Networks
    Optical Fiber Communication Conference, 2014
    Co-Authors: Bruce Nyman
    Abstract:

    Submarine Networks are migrating from static to reconfigurable configurations, and are adopting OADM technology similar to that being deployed in terrestrial Networks. We will examine the different technology and operating issues involved in implementing flexibility in terrestrial versus submarine Networks.

Eric Corndorf - One of the best experts on this subject based on the ideXlab platform.

  • quantum noise randomized data encryption for wavelength division multiplexed Fiber Optic Networks
    Physical Review A, 2005
    Co-Authors: Eric Corndorf, Chuang Liang, Gregory S Kanter, Prem Kumar, Horace P Yuen
    Abstract:

    We demonstrate high-rate randomized data-encryption through Optical Fibers using the inherent quantum-measurement noise of coherent states of light. Specifically, we demonstrate 650 Mbit/s data encryption through a 10 Gbit/s data-bearing, in-line amplified 200-km-long line. In our protocol, legitimate users (who share a short secret key) communicate using an M-ry signal set while an attacker (who does not share the secret key) is forced to contend with the fundamental and irreducible quantum-measurement noise of coherent states. Implementations of our protocol using both polarization-encoded signal sets as well as polarization-insensitive phase-keyed signal sets are experimentally and theoretically evaluated. Different from the performance criteria for the cryptographic objective of key generation (quantum key-generation), one possible set of performance criteria for the cryptographic objective of data encryption is established and carefully considered.

  • quantum noise protected data encryption for wdm Fiber Optic Networks
    ACM Special Interest Group on Data Communication, 2004
    Co-Authors: Eric Corndorf, Chuang Liang, Gregory S Kanter, Prem Kumar, Horace P Yuen
    Abstract:

    We demonstrate high data-rate quantum-noise{protected data encryption through Optical Fibers using coherent states of light. Specifically, we demonstrate 650Mbps data encryption through a 10Gbps data-bearing, in-line amplified 200km-long line. In our protocol, legitimate users (who share a short secret-key) communicate using an M-ry signal set while an attacker (who does not share the secret-key) is forced to contend with the fundamental and irreducible quantum-measurement noise of coherent states. Implementations of our protocol using both polarization-encoded signal sets as well as polarization-insensitive phase-keyed signal sets are experimentally and theoretically evaluated. Different from the performance criteria of the cryptographic objective of key generation (quantum key generation), the performance criteria of data encryption are established and carefully considered.

Peter J Winzer - One of the best experts on this subject based on the ideXlab platform.

  • information theoretic security in space division multiplexed Fiber Optic Networks
    European Conference and Exhibition on Optical Communications, 2012
    Co-Authors: Kyle Guan, Peter J Winzer, Emina Soljanin
    Abstract:

    We study the use of space-division multiplexing to achieve information-theoretically provable physical-layer security against Fiber tapping attacks in Optical Networks.

  • capacity limits of information transport in Fiber Optic Networks
    Physical Review Letters, 2008
    Co-Authors: Renejean Essiambre, G J Foschini, Gerhard Kramer, Peter J Winzer
    Abstract:

    Bell Labs, Alcatel-Lucent, 791 Holmdel-Keyport Road, Holmdel, New Jersey, 07733 USA(Received 11 April 2008; revised manuscript received 17 July 2008; published 13 October 2008)The instantaneous Optical Kerr effect in Optical fibers is a nonlinear phenomenon that can impose limitson the ability of fiber-Optic communication systems to transport information. We present here aconservative estimate of the ‘‘fiber channel’’ capacity in an Optically routed network. We show that thefiber capacity per unit bandwidth for a given distance significantly exceeds current record experimentaldemonstrations.

  • capacity limits of information transport in Fiber Optic Networks
    Physical Review Letters, 2008
    Co-Authors: Renejean Essiambre, G J Foschini, Gerhard Kramer, Peter J Winzer
    Abstract:

    The instantaneous Optical Kerr effect in Optical Fibers is a nonlinear phenomenon that can impose limits on the ability of Fiber-Optic communication systems to transport information. We present here a conservative estimate of the "Fiber channel" capacity in an Optically routed network. We show that the Fiber capacity per unit bandwidth for a given distance significantly exceeds current record experimental demonstrations.