Xiaoyan Hong

University of Alabama

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Mário Gerla

UCLA Health

Qunwei Zheng

University of Alabama

Jiejun Kong

University of Florida

Jian Wu

Southern Medical University

Lei Tang

Tsinghua University

Bo Gu

Sun Yat-sen University

Chunming Wu

Zhejiang University

Meng Kuai

University of Alabama

Jun Liu

Colorado School of Mines

Susan V. Vrbsky

University of Alabama

Cooperative Institutions

University of Alabama

Institute of Electrical and Electronics Engineers

Beijing University of Posts and Telecommunications

Chinese Academy of Sciences

Zhejiang University

University of California, Los Angeles

Jilin University

Zhejiang University of Science and Technology

National University of Defense Technology

Wenzhou Medical University

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Engineering traffic uncertainty in the OpenFlow data plane

Fei Chen Chunming Wu Xiaoyan Hong Zhouhao Lu Zhouhao Wang

This paper is driven by a simple question of whether traffic engineering in Software Defined Networking (SDN) can react quickly to bursty and unpredictable changes in traffic demand. The key challenge is to strike a careful balance between the overhead (frequently involving the SDN controller) and performance (the degree of congestion measured as the maximum load and the balance between the minimum and the maximum loads). Exploiting OpenFlow (OF) features, quick shift of routing paths for unpredictable traffic bursty is the focal point of this work. It is achieved by using a dual routing scheme and letting the data plane to select the appropriate path in reacting to uncertainty in traffic load. The proposed work is called DUCE (Demand Uncertainty Configuration sElection). Further, we describe a traffic distribution model, an optimization solution that calculates congestion-free traffic distribution plan which guarantees that each switch can select one of the paths in a distributed way, and moreover, OF details about detaching the functionality of responding to the demand uncertainty from the control plane and delegating it to the data plane. Simulations are performed validating the efficiency of DUCE under various network scenarios.

OpenFlow

Forwarding plane

10.1109/infocom.2016.7524612

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Citations (17)

A Named Data Networking Architecture Implementation to Internet of Underwater Things

Zhao Qi Zheng Peng Xiaoyan Hong

The Internet of Underwater Things (IoUT) advances our ability in exploring oceans, lakes and rivers through multiple communication technologies that connect stationary and mobile nodes underwater, at the surface and in the sky. However, characteristics such as low data rate, long propagation delay, energy-constraint, mobility and sparsity of underwater communications remain as major challenges to the potential benefits that IoUT can bring to data availability and data sciences. This paper aims to further explore how the Named Data Networking (NDN), a future Internet architecture, addresses the challenges of IoUT and can be adapted to potentially provide a more secure, simplified, and efficient implementation of IoUT. The IoUT network and application semantics are aligned with the data-centric communication model of NDN, which enables operators to deploy and configure networks more easily, and developers to focus more on "things" and data. The paper starts from introducing new challenges in IoUT and then illustrating in detail with simple examples to show how to employ NDN architecture to IoUT and how to enable additional functionalities required by IoUT.

Sonification

10.1145/3366486.3366506

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Citations (17)

Sustain Vehicle-Crowds via Traffic Signal Adjustments

2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall) (2018)

Meng Kuai Pawan Subedi Xiaoyan Hong Alexander M. Hainen

Vehicle-crowd (V-crowd) based cloudlets are envisioned to support high-demand mobile edge computing applications. Yet, a v-crowd's capability to host cloudlet applications is significantly affected by the sustainability of itself. Among the factors that may contribute to the capability and sustaining the v-crowd, traffic signal coordination plays an important role. In this paper, we study the interdependence between them through an empirical approach. We'll define new metrics to quantify the impact, and use data driven simulation to obtain results by manipulating signals offset as a control knob of traffic signal coordination. The goal is to use the results in terms of the metrics to develop guidelines that offer choices of offsets preferable for certain levels of v-crowd properties so as to achieve better performance of cloudlet applications.

Cloudlet

10.1109/vtcfall.2018.8690577

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Citations (1)

X-Region: A framework for location privacy preservation in mobile peer-to-peer networks

International Journal of Communication Systems (2013)

Yanzhe Che Qinming He Xiaoyan Hong Kevin Chiew

While enjoying various LBS (location-based services), users also face the threats of location privacy disclosure. This is because even if the communications between users and LBS providers can be encrypted and anonymized, the sensitive information inside LBS queries may disclose the exact location or even the identity of a user. The existing research on location privacy preservation in mobile peer-to-peer (P2P) networks assumed that users trust each other and directly share location information with each other. Nonetheless, this assumption is not practical for most of the mobile P2P scenarios, for example, an adversary can pretend to be a normal user and collect the locations of other users. Aiming at this issue, this paper presents x-region as a solution to preserve the location privacy in a mobile P2P environment where no trust relationships are assumed amongst mobile users. The main idea is to allow users to share a blurred region known as x-region instead of their exact locations so that one cannot distinguish any user from others inside the region. We propose a theoretical metric for measuring the anonymity property of x-region, together with three algorithms for generating an x-region, namely, benchmark algorithm, weighted expanding algorithm, and aggressive weighted expanding algorithm. These algorithms achieve the anonymity and QoS requirements with different strategies. Our experiments verify the performance of the algorithms against three key metrics. Copyright © 2013 John Wiley & Sons, Ltd.

Location-based service

Benchmark (surveying)

k-Anonymity

Pseudonym

10.1002/dac.2650

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Citations (6)

Multiple-landmark routing for large groups in ad hoc networks

Xiaoyan Hong Mário Gerla Li Ma

A typical scenario in mobile ad hoc networks (MANET) consists of nodes having functional and motorial affinities (e.g., tanks in the some battalion). In order to achieve scalability for such a network having a large scale, we introduce, in this paper, a novel "multiple-landmark" ad hoc routing protocol (M-LANMAR). The protocol is an "implicit", flexible hierarchical routing scheme following the traditional hierarchical method for handling scalability in large, wired networks. M-LANMAR features dynamic distributed election of multiple landmarks (with scope constraints) and destination discovery within each group using landmark forwarding mesh or multicast fabric techniques plus route caching. The scalability is achieved through efficiently handling the group motion patterns, namely, the truncation of local routing tables and the "summarization" of routing information to remote groups of nodes. Different from the previous proposed landmark ad hoc routing (LANMAR), M-LANMAR allows separate maintenance/optimization of user group size and local routing scope, leading to unrestricted group size regardless of local routing scope. The simulation results not only show election stability of the multiple landmarks but also confirm the good scalability properties of M-LANMAR in general ad hoc network infrastructures (networks that are large in size and/or that contain large logical groups).

10.1109/milcom.2002.1180492

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Citations (11)

Routing with bridging nodes for drifting mobility

Xiaoyan Hong Meng Kuai Wenhua Hu

Drifting with oceanic current forces is an unique mobility pattern for the underwater sensor networks. The different current velocities at the different depth levels and the periodic velocities can impact the three dimensional network deployment greatly over time. One outcome of such impact is the disruption to the network connectivity. In this paper, a routing protocol that utilizes the bridging nodes is introduced to tackle the connectivity problem. The protocol bears features that explore the unique mobility pattern and geological structure to suppress transmission overhead and improve energy efficiency.

10.1145/2398936.2398992

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OBS/GMPLS Interworking Network with Scalable Resource Discovery for Global Grid Computing

Networks for Grid Applications (2009)

Jialin Wu L. Liu Xiaoyan Hong Jieqiong Lin

In recent years, Grid computing is more common in the industry and research community and will open to the consumer market in the future. The final objective is the achievement of global Grid computing, which means that the computing and networks are flexibly integrated across the world and a scalable resource discovery scheme is implemented. In this paper, a promising architecture, i.e., optical burst switching (OBS)/generalized multi-protocol label switching (GMPLS) interworking network with Peer-to-Peer (P2P)-based scheme for resource discovery is investigated to realize a highly scalable and flexible platform for Grids. Experimental results show that this architecture is suitable and efficient for future global Grid computing.

10.1007/978-3-642-02080-3_25

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Citations (1)

Achieving consistence for cross-domain WAN control in Software-Defined Networks

China Communications (2015)

Boyang Zhou Chunming Wu Wen Gao Xiaoyan Hong Ming Jiang

When applying Software-Defined Networks (SDN) to WANs, the SDN flexibility enables the cross-domain control to achieve a better control scalability. However, the control consistence is required by all the cross-domain services, to ensure the data plane configured in consensus for different domains. Such consistence process is complicated by potential failure and errors of WANs. In this paper, we propose a consistence layer to actively and passively snapshot the cross-domain control states, to reduce the complexities of service realizations. We implement the layer and evaluate performance in the PlanetLab testbed for the WAN emulation. The testbed conditions are extremely enlarged comparing to the real network. The results show its scalability, reliability and responsiveness in dealing with the control dynamics. In the normalized results, the active and passive snapshots are executed with the mean times of 1.873s and 105ms in 135 controllers, indicating its readiness to be used in the real network.

Testbed

PlanetLab

Networking hardware

Forwarding plane

10.1109/cc.2015.7315065

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Citations (6)

Analysis for bio-inspired thrown-box assisted message dissemination in delay tolerant networks

Telecommunication Systems (2011)

Bo Gu Xiaoyan Hong Pu Wang

Content Distribution

10.1007/s11235-011-9554-9

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Citations (6)

Location-Based Deferred Broadcast for Ad-Hoc Named Data Networking

Future Internet (2019)

Meng Kuai Xiaoyan Hong

The emerging connected and autonomous vehicles (CAVs) challenge ad hoc wireless multi-hop communications by mobility, large-scale, new data acquisition and computing patterns. The Named Data Networking (NDN) is suitable for such vehicle ad hoc networks due to its information centric networking approach. However, flooding interest packets in ad-hoc NDN can lead to broadcast storm issue. Existing solutions will either increase the number of redundant interest packets or need a global knowledge about data producers. In this paper, a Location-Based Deferred Broadcast (LBDB) scheme is introduced to improve the efficiency and performance of interest broadcast in ad-hoc NDN. The scheme takes advantage of location information to set up timers when rebroadcasting an interest. The LBDB is implemented in V-NDN network architecture using ndnSIM simulator. Comparisons with several existing protocols are conducted in simulation. The results show that LBDB improves the overhead, the average number of hops and delay while maintaining an average satisfaction ratio when compared with several other broadcast schemes. The improvement can help offer timely data acquisition for quick responses in emergent CAV application situations.

Information-Centric Networking

10.3390/fi11060139

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Citations (21)