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Xiaoyun Li
Xiaoyun Li
Biography
- Research Interests:
Biography
Xiaoyun Li is working for wireless sensor network project Bluedot+. His main research fields include power saving algorithms for IEEE 802.15.4 standard, coverage hole detection and recovery, triangulation algorithm for full coverage in wireless sensor netwroks.
Before coming to UCD, Dr Xiaoyun Li worked as a Postdoc research officer for the project ''TRAffic Modelling for Sensor Network Optimisation and Development" (TRAMSNOD) at University of Essex, UK.
Xiaoyun Li received his Ph.D in 2008 at University of Essex, UK. His PhD thesis topic is“Distributed Topology Aware Algorithms and Topology Control Probabilistic Analysis for Wireless Sensor Networks".
Publications
Book
● Xiaoyun Li 'Topology Discovery Using Binary Connectivity Information' , Publisher: LAP LAMBERT Academic Publishing (May 28, 2010) http://www.amazon.com/Topology-Discovery-Binary-Connectivity-Information/dp/3838369343
Journal Paper
● Xiaoyun Li, D. K. Hunter, “Distributed Coordinate-free Algorithm for Full Sensing Coverage”, International Journal of Sensor Networks, vol. 5, no. 3, 2009.Conference Papers
●Xiaoyun Li, D. K. Hunter, “Analytical Model of Single-hop IEEE 802.15.4 Data Aggregation in Wireless Sensor Networks”, Second International Workshop on Multiple Access Communications, International Conference on Communications (ICC), Dresden, Germany, June 2009. http://dces.essex.ac.uk/staff/hunter/Li%20ICC%202009.pdf●Xiaoyun Li, D. K. Hunter, “Distributed Coordinate-free Hole Recovery”, IEEE Thirteenth International Workshop on Computer Aided Modeling, Analysis and Design of Communication Links and Networks (CAMAD), ICC, May 2008. http://dces.essex.ac.uk/staff/hunter/Li%20CAMAD08.pdf
●Xiaoyun Li, D. K. Hunter, “Probabilistic Model of Triangulation”, ACM Solid and Physical Modeling Symposium, State University of New York at Stony Brook, June 2-4, 2008. http://dces.essex.ac.uk/staff/hunter/Li%20SPMS08.pdf
●Xiaoyun Li, D. K. Hunter, K. Yang, “Distributed Coordinate-Free Hole Detection and Recovery”, IEEE GLOBECOM 2006, San Francisco, USA, 27th November – 1st December, 2006. http://dces.essex.ac.uk/staff/hunter/GLOBECOM%202006%20final.pdf
● Y. Wang, I. Henning, Xiaoyun Li, D. K. Hunter, “SOTP: A Self-Organized TDMA Protocol for Wireless Sensor Networks”, Electrical and Computer Engineering, Canadian Conference, May 2006.
●Xiaoyun Li, D. K. Hunter, “3MeSH for Full Sensing Coverage in a WSN without Location Awareness”, London Communications Symposium, London, September 2005.
Thesis:
● Xiaoyun Li, PhD thesis: “Distributed Topology Aware Algorithms and Topology Control Probabilistic Analysis for Wireless Sensor Networks"
2008, University of Essex, UK
● Xiaoyun Li, Ms.C thesis: "Design of a distributed, power-aware Self-Organized protocol for multi-hop large-scale wireless sensor networks"
2004, University of Essex, UKResearch
Research Project: Bluedot+
The main purpose of this project is to design and analyze networking performance of MAC protocols such as IEEE 802.15.4 for wireless ad hoc networks and sensor networks, in order to find out new solution or protocols for better power saving, less transmission end to end delay and less data loss etc. The research will also consider different kinds of scenarios such as node density, mobility and failure models. The output of the research can be potentially applied on commercial wireless motes/products based on IEEE 802.15.4 / Zigbee standards.
Publication
Title: Enhanced Beacon Enabled Mode For Improved IEEE 802.15.4 Low Data Rate PerformanceThis paper proposes enhancements to IEEE 802.15.4 Beacon-Enabled Mode that provide improved network performance and lower power consumption for low data rate applications. The proposed mode allows nodes to sleep for multiple Beacon Intervals and subsequently recover Beacon synchronization in a power efficient manner. The proposed mode also allows nodes to transmit at scheduled times during the inactive period. The proposed Enhanced Mode is backward compatible and inter-operable with the original standard. Simulation using OPNET shows that the proposed Enhanced Mode reduces the power consumption overhead of synchronization by more than 50% for applications with low data rates compared with standard Beacon-Enabled mode. End-to-end delay and data loss rate are reduced by more than 90% compared with standard Beacon-Enabled mode. Duty cycle is reduced by 20% ~ 80% compared with standard Beacon-Enabled mode and by more than 90% compared with non-Beacon-Enabled mode in low and moderate traffic conditions
