Dr. David Grace MEng, DPhil (York) MIEEE MIET
Senior Research Fellow, Head of Communications Research Group, Co-Director of York - Zhejiang Lab for Cognitive Radio and Green Communications
Email: dg6@ohm.york.ac.uk
Homepage: http://www.davidgrace.info
Tel: +44 (0)1904 32 2396
Fax: +44 (0)1904 32 2335
Research Area: Communications Group
Research Interests
Cognitive radio and cognitive networking for mixed wireless systems.
Radio resource management in general including, dynamic spectrum sharing and coexistence, application of economics to spectrum assignment, and distributed dynamic channel assignment, including specialist knowledge of their application to High Altitude Platforms and wireless ad hoc networks.
System level design, interference studies and mitigation techniques for mixed wireless systems, incorporating current and future standards, including 3G (WCDMA, TD-SCDMA, cdma2000), IEEE802.22, IEEE802.16 (WiMAX), and IEEE802.11x (WiFi).
Propagation modelling at cellular and mm-wave frequencies.
Click here for a full list of publications
New!Broadband Communications via High Altitude Platforms |
Outside Positions of Responsibility
Chair of WUN Cognitive Communications Consortium
Chair of COST 297 - HAPCOS WG1 'Radio Communications'
Related Skills
MATLAB, OPNET modelling, C, Maple, UNIX system administration.
Qualifications
| 1999: | DPhil on Distributed Dynamic Channel Assignment for the Wireless Environment, University of York. |
| 1989 - 1993: | MEng Electronic Systems Engineering, University of York. First Class Honours, sponsored by BT. |
Employment
| Oct 2009 - | Senior Research Fellow (Senior Staff Grade), University of York. |
| Oct 2004 - Sept 2009: | Senior Research Fellow, University of York. |
| June 1999 - Sept 2004: | Research Fellow, University of York. |
| 1994 - June 1999: | Research Assistant, University of York. |
| 1989 - 1993: | Placements with BT, including 6 months at BT Labs. |
Former Director of SkyLARC Technologies Ltd.
Postgraduate Students
Supervisor to several MSc, MPhil and PhD students in the group with common research interests.
Current supervisees: Meng Fei Yang, Hai Bin Li, Tao Jiang, Bo Han, Elizar, RuoFan Jin, Kunyoung Lee (2nd Supervisor), Aizat Ramli, Yunbo Han, Qiyang Zhao, Maninder Jeet Kaur (1 year visiting student), Charles Thomas Mmary.
Former supervisees: Jian Qiu (2nd Supervisor), Jingxin Chen, Pairoj Likitthanasate, YuMing Lu, Zhiyu Peng, Yiming Liu, Guanhua Chen, Zhe Yang, Yang Zhang, Konstantinos Katzis, Konstantinos Akelestos, Linjun Dong, Zijun Zhao.
Current and Recent Long-term Visitors
Xianfu Chen, Zhejiang University, China
Dr Konstantinos Katzis, European University Cyprus
Siavash Bayat, University of Sydney, Australia
Dr Minjian Zhao, Zhejiang University, China
Dr Yong Xi, National University of Defense Technology, China
Ludek Subrt, Czech Technical University in Prague, Czech Republic
Robert Urban, Czech Technical University in Prague, Czech Republic
Shufeng Li, National University of Defence Technology, China
Mohamed Elsokkary, University of Cairo, Egypt
Ongoing and Previous Projects and Activities
Radio Resource Management and Cognitive Radio for Ad Hoc and Terrestrial Networks
- FP7 BuNGee: Broadband Next Generation Access. A European project that is looking at use of cooperative MIMO and cognitive radio, capable of creating self-organising backhaul networks. January 2010 - June 2012.
- MOD Competition of Ideas Project 'Cognitive Routing for Tactical Ad Hoc Networks'. Principal Investigator for the project that is looking at cognitive radio and cognitive networking aspects. October 2007 - September 2008.
- The Use of Licensed Exempt Spectrum for frequencies above 30GHz (Ofcom). Consortium based project that includes: Quotient Associates and Indepen. The activity took place August-September 2006.
- Nominated researcher for NEWCOM an FP6 Network of Excellence. I take part in the Department A activities on Ad Hoc Networks. The 18-month activity commenced in March 2004.
- Spectral efficiency and system capacity evaluation of ad hoc and cellular communications networks which use MIMO (Radio Communications Agency). Consortium based project that includes University of Bristol, BTexact, Toshiba, and York EMC Services. The project took place May 2003 - March 2004.
- FLOWS - A European Framework 5 project ( January 2002 - December 2004) examining 4th Generation communications networks. I was part of the team evaluating the convergence benefits of different architectures and broadband standards in different usage scenarios. I acted as day-to-day project manager for York's aspects.
- Distributed Dynamic Channel Assignment for Tactical Communications (DERA) - project over 4 years, examining DCA techniques for future military multimedia communications. Schemes extensively modelled in both OPNET and MATLAB.
High Altitude Platforms
- Principal Scientific Officer for the 3-year FP6 CAPANINA Project that started in November 2003. Responsible for the project's technical programme. The project is investigating broadband delivery from several types of aerial platform network. The project has 14 industrial/academic partners spread across 7 European countries and Japan. CAPANINA is the follow-on to the Framework 5 HeliNet Project (see below).
- USEHAAS - FP6 Specific Support Action to determine the research strategy for future aeronautical development of high altitude platforms. The 18-month project commenced in March 2005.
- COST 297 - on High Altitude Platforms and Other Services - Chair of WG1 Radio Communications. This 4-year activity commenced in 2005.
- A project supported by BNSC (with SkyLARC Technologies and BTexact) looking at the implications of V-band on HAP systems that was completed in July 2003. This work included evaluating the spectral efficiency of multiple platform configurations.
- The European Framework 5 project HeliNet (January 2000 - March 2003), where I acted as project manager for the broadband communications aspects. The research included system level design tradeoffs and resource allocation strategies in providing multimedia services to urban users in the mm-wave bands.
Other
- Propagation Modelling for Land Mobile Radio (DERA) - ray tracing techniques to model propagation in urban areas. Examined the effect of database inaccuracies on output results.
- Clock Recovery for Giga-Bit LANs (British Aerospace) - advised on the most appropriate techniques for passive star fibre LANs.
Technical Committee Memberships
WUN Cognitive Communications Consortium
COST 297 - HAPCOS
COST IC0902
IEEE Satellite and Space Committee
IEEE Technical Committee on Cognitive Networks
Ofcom Fixed Service Task Group
Latest 30 Publications
- , Efficient Exploration in Reinforcement Learning Based Cognitive Radio Spectrum Sharing, accepted by IET Communications (COM-2010-0258.R1), 2011March, 2011
- , Two Stage Reinforcement Learning Based Cognitive Radio with Exploration Control, accepted by IET Communications (COM-2009-0803.R2), 2010Octorber, 2010
- , Performance Analysis and Power Allocation for Packet Decode-and-Forward Cooperative Relaying System, IEEE VTC-Fall 2010, September, 2010
- , Guaranteed Handover Schemes for a Multilayer Cellular System, IEEE International Symposium on Wireless Communication Systems (ISWCS) 2010, York, UK, September, 2010
- , Cognitive radio multiple access control for unlicensed and open spectrum with reduced spectrum sensing requirements, WUN COGCOM Workshop at the IEEE International Symposium on Wireless Communication Systems (ISWCS), York, UK, September, 2010
- , Receiver based interference protection for MAC protocols in WSNs, IEEE International Symposium on Wireless Communication Systems (ISWCS), York, UK, September, 2010
- , Cognitive radio for UWC spectrum sharing and power allocation, WUN COGCOM Workshop at the IEEE International Symposium on Wireless Communication Systems (ISWCS), York, UK, September, 2010
- , A Novel Guaranteed Handover Scheme for HAP Communications Systems with Adaptive Modulation and Coding, IEEE VTC-Fall 2010, September, 2010
- , RF Signal Strength based Clustering Protocols for a Self-Organizing Cognitive Radio Network, WUN COGCOM Workshop at the IEEE International Symposium on Wireless Communication Systems (ISWCS), York, UK, September, 2010
- , Throughput analysis of non-persistent CSMA combined with TDMA and its implication for cognitive radio, IET Communications, 4(11):1356-1363, July, 2010
- , Cognitive Multicast Routing with QoS Constraints for Multimedia Applications in Integrated Satellite-HAP System Structures, ICCSIT 2010, July, 2010
- , Cognitive greedy-backhaul routing metric exploiting cross-layer design for wireless ad hoc and mesh networks, CROWNCOM, Cannes, France, June, 2010
- , Traffic-oriented scheduling algorithm for aerial platform based routing and MAC for WSNs, International Wireless Communications & Mobile Computing Conference (IWCMC), Caen, France, June, 2010
- , Oscillation Suppression Cognitive Multicast Routing in Integrated Satellite- HAP System Structures, 2010 International Conference on Networking and Information Technology (ICNIT 2010), June, 2010
- , Collision reduction in cognitive radio using multichannel 1-persistant CSMA combined with reinforcement learning, CROWNCOM, Cannes, France, June, 2010
- , Inter-High Altitude Platform Handoff for Communications Systems with Directional Antennas, URSI Radio Science Bulletin Special Issue on HAPs, June, 2010
- , Low-Latency MAC-Layer Handoff for a High Altitude Platform delivering Broadband Communications, URSI Radio Science Bulletin - HAPs Special Issue, June, 2010
- , Use of aerial platforms for energy efficient medium access control in wireless sensor networks, Computer Communications, 33(4):500-512, March, 2010
- , Using bottleneck-aware routing to improve end-to-end bottleneck capacity for heterogeneous ad hoc networks, Karlsruhe Workshop on Software Radios (WSR), Karlsruhe, Germany, March, 2010
- , Cognitive Radio with Reinforcement Learning Applied to Multicast Downlink Transmission with Power Adjustment, Wireless Personal Communications SI on Cognitive Networks and Communications, Acc Feb, 2010
- , Intra-HAP Handoff Scheme for HAP Communications Systems, URSI Radio Science Bulletin Special Issue on HAPs, Acc Feb, 2010
- , Improvement of pre-partitioning on reinforcement learning based spectrum sharing, IET International Communication Conference on Wireless Mobile & Computing (CCWMC), 299-302, Shanghai, China, December, 2009
- , Concepts and Main Applications of High Altitude Platform Relays, URSI Radio Science Bulletin, (330):20 - 31, September, 2009
- , Inter-Cluster Connection in Cognitive Wireless Mesh Networks Based on Intelligent Network Coding, IEEE PIMRC'09, September, 2009
- , Cognitive Radio with Reinforcement Learning Applied to Multicast Downlink Transmission and Distributed Occupancy Detection, International Workshop on Cognitive Networks and Communications (COGCOM2009), San Francisco, USA, August, 2009
- , Using Cognitive Interference Routing to Avoid Congested Areas in Wireless Ad Hoc Networks, International Workshop on Cognitive Networks and Communications (COGCOM2009), August, 2009
- , Inter-Cluster Connection in Cognitive Wireless Mesh Networks Based on Intelligent Network Coding, EURASIP Journal on Applied Signal Processing, 2009:11, August, 2009
- , Cognitive Radio with Reinforcement Learning Applied to Heterogeneous Multicast Terrestrial Communication Systems, CROWNCOM09, Hannover, Germany, June, 2009
- , Using Cognitive Radio to Deliver Green Communications, CROWNCOM'09, Hannover, Germany, June, 2009
- , Future of HAPS for Global change monitoring, for surveillance of the territory, meteorology and broad band telecommunications, 33rd International Symposium on Remote Sensing of Environment, Stresa, Italy, May, 2009
- , Propagation Impairment Countermeasures in Mobile Stratospheric Operating Environment, IEEE VTC-Spring, April, 2009