The Experts below are selected from a list of 121914 Experts worldwide ranked by ideXlab platform

Weihua Zhuang - One of the best experts on this subject based on the ideXlab platform.

  • Stochastic Analysis of a Single-Hop Communication Link in Vehicular Ad Hoc Networks
    IEEE Transactions on Intelligent Transportation Systems, 2014
    Co-Authors: Khadige Abboud, Weihua Zhuang
    Abstract:

    A vehicular ad hoc network (VANET) is a promising addition to our future intelligent transportation systems, which supports various safety and infotainment applications. The high node mobility and frequent topology changes in VANETs impose new challenges in maintaining a long-lasting connection between network nodes. As a result, the lifetime of Communication Links is a crucial issue in VANET development and operation. This paper presents a probabilistic analysis of the Communication Link in VANETs for three vehicle density ranges. First, we present the stationary distribution of the Communication Link length using mesoscopic mobility models. Second, we propose a stochastic microscopic mobility model that captures time variations of intervehicle distances (distance headways). A discrete-time finite-state Markov chain with state-dependent transition probabilities is proposed to model the distance headway. Third, the proposed stochastic microscopic model and first passage time analysis are used to derive the probability distribution of the Communication Link lifetime. Numerical results are presented to evaluate the proposed model, which demonstrate a close agreement between analytical and simulation results.

  • GLOBECOM - Analysis of Communication Link lifetime using stochastic microscopic vehicular mobility model
    2013 IEEE Global Communications Conference (GLOBECOM), 2013
    Co-Authors: Khadige Abboud, Weihua Zhuang
    Abstract:

    A vehicular ad hoc network (VANET) is a promising addition to our future intelligent transportation systems, which supports various safety and infotainment applications. The high node mobility and frequent topology changes in VANETs impose new challenges on maintaining a long-lasting connection between vehicular nodes. As a result, the lifetime of Communication Links is a crucial measure in VANET development and operation. This paper presents a probabilistic analysis of the Communication Link lifetime in VANETs. Firstly, we propose a stochastic microscopic mobility model that captures time variations of inter-vehicle distances (distance headways), using a discrete-time finite-state Markov chain with state dependent transition probabilities. Secondly, the proposed stochastic model and first passage time analysis are used to derive the probability distribution of the Communication Link lifetime. Finally, numerical results are presented to evaluate the proposed model, which demonstrate a close agreement between analytical and simulation results.

Raed M Shubair - One of the best experts on this subject based on the ideXlab platform.

  • One-to-Two Wireless Interchip Communication Link
    IEEE Antennas and Wireless Propagation Letters, 2019
    Co-Authors: Yazan Al-alem, Ahmed A Kishk, Raed M Shubair
    Abstract:

    Wireless interchip Communication between adjacent ICs in extreme conditions of orthogonal antennas is studied. The use of soft/hard surfaces and symmetrical layers concepts is employed in a 1:2 wireless interchip Communication Link to improve the overall Link budget. A Y-shaped 1:2 wireless interchip Link is fabricated and tested. The simulated results are validated by measurements.

  • wireless chip to chip Communication Link budget enhancement using hard soft surfaces
    IEEE Global Conference on Signal and Information Processing, 2018
    Co-Authors: Yazan Alalem, Ahmed A Kishk, Raed M Shubair
    Abstract:

    This paper investigates the use of hard/soft surface concept to improve the Link budget of a wireless inter-chip Communication Link. The use of such surfaces is employed to focus the radiated power from the transmitter towards the receiver. As a result of employing the hard/soft surfaces a significant improvement in the Link budget of a wireless chip to chip Communication Link is improved.

  • GlobalSIP - Wireless Chip to Chip Communication Link Budget Enhancement Using Hard/Soft Surfaces
    2018 IEEE Global Conference on Signal and Information Processing (GlobalSIP), 2018
    Co-Authors: Yazan Al-alem, Ahmed A Kishk, Raed M Shubair
    Abstract:

    This paper investigates the use of hard/soft surface concept to improve the Link budget of a wireless inter-chip Communication Link. The use of such surfaces is employed to focus the radiated power from the transmitter towards the receiver. As a result of employing the hard/soft surfaces a significant improvement in the Link budget of a wireless chip to chip Communication Link is improved.

Khadige Abboud - One of the best experts on this subject based on the ideXlab platform.

  • Stochastic Analysis of a Single-Hop Communication Link in Vehicular Ad Hoc Networks
    IEEE Transactions on Intelligent Transportation Systems, 2014
    Co-Authors: Khadige Abboud, Weihua Zhuang
    Abstract:

    A vehicular ad hoc network (VANET) is a promising addition to our future intelligent transportation systems, which supports various safety and infotainment applications. The high node mobility and frequent topology changes in VANETs impose new challenges in maintaining a long-lasting connection between network nodes. As a result, the lifetime of Communication Links is a crucial issue in VANET development and operation. This paper presents a probabilistic analysis of the Communication Link in VANETs for three vehicle density ranges. First, we present the stationary distribution of the Communication Link length using mesoscopic mobility models. Second, we propose a stochastic microscopic mobility model that captures time variations of intervehicle distances (distance headways). A discrete-time finite-state Markov chain with state-dependent transition probabilities is proposed to model the distance headway. Third, the proposed stochastic microscopic model and first passage time analysis are used to derive the probability distribution of the Communication Link lifetime. Numerical results are presented to evaluate the proposed model, which demonstrate a close agreement between analytical and simulation results.

  • GLOBECOM - Analysis of Communication Link lifetime using stochastic microscopic vehicular mobility model
    2013 IEEE Global Communications Conference (GLOBECOM), 2013
    Co-Authors: Khadige Abboud, Weihua Zhuang
    Abstract:

    A vehicular ad hoc network (VANET) is a promising addition to our future intelligent transportation systems, which supports various safety and infotainment applications. The high node mobility and frequent topology changes in VANETs impose new challenges on maintaining a long-lasting connection between vehicular nodes. As a result, the lifetime of Communication Links is a crucial measure in VANET development and operation. This paper presents a probabilistic analysis of the Communication Link lifetime in VANETs. Firstly, we propose a stochastic microscopic mobility model that captures time variations of inter-vehicle distances (distance headways), using a discrete-time finite-state Markov chain with state dependent transition probabilities. Secondly, the proposed stochastic model and first passage time analysis are used to derive the probability distribution of the Communication Link lifetime. Finally, numerical results are presented to evaluate the proposed model, which demonstrate a close agreement between analytical and simulation results.

Alexandre V. Evfimievski - One of the best experts on this subject based on the ideXlab platform.

  • A probabilistic algorithm for updating files over a Communication Link
    Theoretical Computer Science, 2000
    Co-Authors: Alexandre V. Evfimievski
    Abstract:

    Let P and Q be two parties on either side of a Communication Link. Assume that P has an old version of some file and wants to get a newer version from Q (who has it). Our algorithm performs this operation using poly(log|x|,log|y|,d(x,y),log(1/e)) Communication bits where x and y are old and new versions, d(x,y) is the number of editing operations needed to transform x into y, and e is the error probability. The running time is poly(|x|,|y|,log(1/e)).

  • A probabilistic algorithm for updating files over a Communication Link
    Theoretical Computer Science, 2000
    Co-Authors: Alexandre V. Evfimievski
    Abstract:

    AbstractLet P and Q be two parties on either side of a Communication Link. Assume that P has an old version of some file and wants to get a newer version from Q (who has it). Our algorithm performs this operation using poly(log|x|,log|y|,d(x,y),log(1/ε)) Communication bits where x and y are old and new versions, d(x,y) is the number of editing operations needed to transform x into y, and ε is the error probability. The running time is poly(|x|,|y|,log(1/ε))

Andrew W. Eckford - One of the best experts on this subject based on the ideXlab platform.

  • Molecular MIMO Communication Link
    arXiv: Emerging Technologies, 2015
    Co-Authors: Changmin Lee, Bon-hong Koo, Na-rae Kim, Birkan Yilmaz, Nariman Farsard, Andrew W. Eckford, Chan-byoung Chae
    Abstract:

    In this demonstration, we will present the world's first molecular multiple-input multiple-output (MIMO) Communication Link to deliver two data streams in a spatial domain. We show that chemical signals such as concentration gradients could be used in MIMO fashion to transfer sequential data. Until now it was unclear whether MIMO techniques, which are used extensively in modern radio Communication, could be applied to molecular Communication. In the demonstration, using our devised MIMO apparatus and carefully designed detection algorithm, we will show that we can achieve about 1.7 times higher data rate than single input single output (SISO) molecular Communication systems.

  • INFOCOM Workshops - Molecular MIMO Communication Link
    2015 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), 2015
    Co-Authors: Changmin Lee, Bon-hong Koo, Na-rae Kim, Birkan Yilmaz, Andrew W. Eckford, Nariman Farsad, Chan-byoung Chae
    Abstract:

    In this demonstration, we will present the world's first molecular multiple-input multiple-output (MIMO) Communication Link to deliver two data streams in a spatial domain. We show that chemical signals such as concentration gradients could be used in MIMO fashion to transfer sequential data. Until now it was unclear whether MIMO techniques, which are used extensively in modern radio Communication, could be applied to molecular Communication. In the demonstration, using our devised MIMO apparatus and carefully designed detection algorithm, we will show that we can achieve about 1.7 times higher data rate than single input single output (SISO) molecular Communication systems.

  • INFOCOM Workshops - Molecular Communication Link
    2014 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), 2014
    Co-Authors: Nariman Farsad, Weisi Guo, Andrew W. Eckford
    Abstract:

    This demonstration will present the world's first macroscale molecular Communication Link to reliably transmit a continuous data stream. The system modulates alcohol molecules, which are then diffused via ambient and induced air currents to carry information to a receiver. The Communication distance is several meters and the propagation channel we will demonstrate consists of both free space and tunnel environments. The goal is to show that molecules can be used as an alternative to electromagnetic (EM) waves in challenging environments where EM waves do not perform well.