Research
Current research topics:- Cognitive multi-hop networks
- Compressive sensing for Wireless Sensor Networks
- Participactory sensing
- Multicast in wireless mesh networks
- Multimedia networking
Cognitive multi-hop networks
Post-doctoral fellow: Jerry Chen. Collaborators: Wei Zhang, Salil Kanhere, Sanjay Jha
- We are interested to do design cognitive multi-hop networks to improve the application performance. This piece of work will appear in: Q. Chen, C.T. Chou, S. Kanhere, W. Zhang and S. Jha. Performance of Multi-hop Whisper Cognitive Radio Networks. Accepted by Fourth IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks 2010 (DySPAN 2010), 2010. Technical report UNSW-CSE-TR-0917 Performance of Multi-hop Whisper Cognitive Radio Networks
Compressive sensing for wireless sensor networks
Research student: Rajib Rana; Collaborators: Wen Hu (CSIRO), Aleksandar Ignjatovic (UNSW)
We are interested to understand how the recent theory of compressive sensing can be used to improve the performance of wireless sensor networks. Our recent contributions include:
- We propose a method based on sparse random matrices to manage manage a rechargable wireless sensor network consisting of power-hungry sensors. This work will appear in: Rajib Rana, Wen Hu and Chun Tung Chou, Energy-Aware Sparse Approximation Technique (EAST) for Rechargeable Wireless Sensor Networks. Accepted by 7th European Conference on Wireless Sensor Networks (EWSN) 2010
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Participactory sensing
Research students: Rajib Rana, Alex YiFei Dong. Collaborators: Salil Kanhere (UNSW), Nirupama Bulusu (Portland State University), Wen Hu (CSIRO)
Our research in participatory sensing looks at a few different problems:
- We study how mobile phones can be used to measure noise
pollution in the participatory sensing setting. We have developed an
end-to-end system to realise such an application. In particular, since participatory sensing does not guarantee the availability of samples, we
study how the incomplete data problem can be
overcome. See:
- Rajib Rana, Chun Tung Chou, Salil Kanhere, Nirupama Bulusu and Wen Hu. Ear-Phone: An End-to-End Participatory Urban Noise Mapping System. Accepted by the 9th International Conference on Information Processing in Sensor Networks (IPSN) – Sensor Platforms, Tools and Design Methods Track (SPOT Track), 2010. (12 pages) (11 out of 58 papers accepted. Acceptance rate = 19.0%)
- Rajib Kumar Rana, Chun Tung Chou, Salil S. Kanhere, Nirupama Bulusu, Wen Hu: Ear-Phone assessment of noise pollution with mobile phones. SenSys 2009: 395-396
- Technical report: UNSW-CSE-TR-0920 "Ear-Phone: An End-to-End Participatory Urban Noise Mapping System"
- Although information technology has enable the automation of many
work processes, we find that a lot of data is still collected
manually. We propose the use of participatory sensing as an
automatic method to collect petrol prices. The detail of this
proposal can be found in:
- Y.F. Dong, S. Kanhere, C.T. Chou and N. Bulusu, Automatic collection of fuel prices from a network of mobile cameras , In Proc. Distributed Computing in Sensor Systems (DCOSS 2008), pages 140-156, 2008.
- We also argue the use of participatory sensing as a way to collect consumer pricing information in: Nirupama Bulusu, Chun Tung Chou, Salil Kanhere, Yifei Dong, Shitiz Sehgal, David Sullivan and Lupco Blazeski, "Participatory Sensing in Commerce: Using Mobile Camera Phones to Track Market Price Dispersion" . Appeared in International Workshop on Urban, Community, and Social Applications of Networked Sensing Systems (UrbanSense 08; co-located with ACM Sensys 2008)
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Multicast in wireless mesh networks
Research students: Adelmenen Bilh, Zin Zhao, Junaid Qadir (Graduated). Collaborators: Sanjay Jha (UNSW), Jun Guo (UNSW), Archan Misra (Telcordia), Cormac Sreenan (University of Cork), Wanqing Tu (Glyndwr University)
The focus of our research is to design efficient algorithm for multiast in wireless mesh networks.
- We study how the multi-rate nature of wireless broadcast will
affect the performance of multicast in wireless mesh networks. We
design algorithms for multi-rate multicast for both single-radio
single-channel and multi-radio multi-channel wireless mesh
networks. We also introduce the idea of rate-area product which
informs us how transmission rate affect broadcast
performane. Selected publications are:
- Junaid Qadir, Chun Tung Chou, Archan Misra, Joo Ghee Lim: Minimum Latency Broadcasting in Multiradio, Multichannel, Multirate Wireless Meshes . IEEE Trans. Mob. Comput. 8(11): 1510-1523 (2009)
- C.T. Chou, A. Misra and J. Qadir, Low latency broadcast in multi-rate wireless mesh networks . IEEE Journal on Selected Areas in Communications (Special Issue on Multi-hop Wireless Mesh Networks), Volume 24, Number 11, pp. 2081-2091 (11 pages), 2006
- C.T. Chou, A. Misra, J. Qadir and J. Lim, Advances and Challenges with Data Broadcasting in Wireless Mesh Networks . In IEEE Communications Magazine Feature Topics on Wireless Mesh Networks, Volume 45, Issue 11, pp. 78-85, November, 2007. (8 pages)
- B.H. Liu, C.T. Chou, A. Misra, S. Jha, Rate-diversity and Resource-aware Broadcast and Multicast in Multi-rate Wireless Mesh Networks , Mobile Networks and Applications, Volume 13, Numbers 1-2, pp. 38-53, 2008.
- J. Qadir, C.T. Chou, A. Misra and J.G. Lim, Localized Minimum-Latency Broadcasting in Multi-radio Multi-rate Wireless Mesh Networks . In Proc. of IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (IEEE WoWMoM) as an extended paper, 2008. (13 out of 181 submissions accepted as extended papers. Acceptance rate = 7.2%) (Finalist for Best Paper Award) (12 pages)
- W. Tu, C. Sreenan, C.T. Chou, A. Misra and S. Jha, "Resource-aware Video Multicasting via Access Gateways in Wireless Mesh Networks," in Proceedings of the 16th IEEE International Conference on Network Protocols (ICNP 2008), pages 43-52. (Acceptance 33 out of 202 submissions, 16.3%) (10 pages)
- C.T. Chou, B.H. Liu and A. Misra, "Maximizing broadcast and multicast traffic load through link-rate diversity in wireless mesh networks,” In Proc. IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks as an extended paper, 2007. (12 pages) (15 out of 148 submissions accepted as extended papers. Acceptance rate = 10.1%)
- We propose a new routing metric for reliable multicast in wireless mesh networks. See:
- X. Zhao, C.T. Chou, J. Guo, S. Jha and A. Misra. Probabilistically Reliable On-Demand Multicast in Wireless Mesh Networks . In Proc. of IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (IEEE WoWMoM) as a regular paper, 2008. (8 pages) (45 out of 181 submissions accepted. Acceptance rate = 24.9%)
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Multimedia networking
Students: Werayut Saesue, Evan Tan. Collaborator: Jian Zhang (NICTA).- W. Saesue, J. Zhang and C.T. Chou, Hybrid frame-recursive block-based distortion estimation model for wireless video transmission , In Proc. IEEE International Workshop on Multimedia Signal Processing, pages 774-779, 2008. (6 pages)
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