Collaboration with National Ilan University, Taiwan
Research Area: Wirreless Mesh and Ad Hoc Networking
Research Topic: Cross-layer Based Intrusion Detection in Wireless Mesh Networks
Description ::
This research investigates the use of cross-layer based information for desiging efficient algorithms and protocols for intrusion detection in wireless mesh networks. We study various mathematical models and theories including Bayesian networks, game theory, neural networks, etc., for protocols design and evaluation.
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Dario Guiao
Research Area: Pervasive/Ubiquitous Computing
Thesis Topic: The Design of Patient Monitoring and Notification System for Pervasive Health Care
Email:
Website:
Description ::
Pervasive healthcare offers many opportunities to medical health systems. These opportunities include mobile & wireless telemedicine, intelligent emergency response and management, pervasive & wireless access to medical data as well as short-term or long-term remote monitoring services. One particular aspect of pervasive healthcare is patient monitoring. Popular patient monitoring systems include Code Blue and Alarm-Net. Currently as the field of pervasive healthcare continues to advance, it is expected that new patient monitoring systems will be developed. It is to this endeavour that this project hopes to contribute.
This thesis proposes to develop a system where individuals will wear wireless body sensor networks that will collect patient physiological signals. For example sensors around patient's chest area will monitor heart sounds to determine if a patient has high blood pressure or left ventricular dysfunction and so forth. If it is imminent that an individual will suffer a heart attack, data collected from the sensors will notify the local ambulance. This healthcare monitoring system will be developed for diverse environments including individual's home, work place, rural health centers or nursing homes.
Henry Phan
Research Area: Pervasive/Ubiquitous Computing
Research Area: Integrated Middleware for Heterogeneous Wireless Networks
Email:
Website:
Abstract::
In this thesis, we investigate the design and evaluation of integrated access ponits for heterogeneous wireless networks. Th research includes WIFI, Cellular, Bluetooth and other networks. The aim is to develop a middleware that allows communication among various networks using a single Integrated Access Point.
Jason Ernst
Research Area: Wirreless Mesh and Ad Hoc Networking
Thesis Topic: Scheduling in Wireless Mesh Networks
Email: jernst@uoguelph.ca
Website: http://www.uoguelph.ca/~jernst/
Description ::
Wireless Mesh Networks (WMNs) are a unique type of wireless network that has many advantages over other style such as ad-hoc and wireless lan (wlan). WMNs can support multi-path, multi-hop routing like ad-hoc networks but at the same time is not limited by resources and power constraints because of the Mesh Routers (MRs). However scalability it still a major challenge in WMNs. One important reason this is the case is because of scheduling problems. Often nodes which have fewer hops between themselves and gateways receive better service. Additionally, greedy nodes may monopolize network resources causing starving in other nodes. Some solutions assign fixed time intervals to each client however this wastes network resources when certain clients are idle.
This thesis proposes a cross-layer based mixed-bias approach for WMNs. The mixed-bias approach aims to maximize both fairness and throughput at the same by creating a bias against unwanted characteristics in the network while providing a minimum level of service. The network resources are split up and each portion is assigned a certain bias function. Cross-layering is applied to provide feedback from layers which usually do not communicate normally in order to provide the biasing functions with the necessary information. These function will bias against characteristics such as: flows with long paths (many hops), flows which use large amounts of bandwidth, poor link quality and many other factors. A certain proportion of the network will also be reserved for hard fairness so that none of the nodes are starved. Then as a whole the functions will be optimized together to achieve a high throughput.
Thabo Nkwe
Research Area: Wirreless Mesh and Ad Hoc Networking
Thesis Topic: Autonomic Wireless Mesh Networks
Email: tnwke@uoguelph.ca
Website:
Description ::
Wireless Mesh Networks (WMNs) have become a network of choice to provide broadband wireless Internet connectivity where wired infrastructure is uneconomical or impractical to deploy. Their support for less expensive broadband internet services has made them even more attractive and increased user demand. WMNs like the traditional ad-hoc networks, also provides support for multi-path, multi-hop routing but holds more advantages because of their well vested resources. Even with their abundant computational resources (processing power, memory, expandable storage, bandwidth, multiple technologies, etc) in the form of mesh routers (MRs); WMNs suffer from bottleneck or chokepoints effects at the Internet gateways due to the nature of traffic pattern which is always towards or away from the Internet. The concentrated communication via the Internet gateway subsequently results in network performance degradation.
Most solutions focus on routing to mitigate this problem, disregarding data caching techniques. It is also important to perform caching cooperatively and in a dynamic manner. Inspired by the autonomic networking paradigm, this thesis proposes a cross-layer enabled self-optimizing cooperative caching approach for Autonomic Wireless Mesh Networks (AWMNs). A system which gradually improves data accessibility and availability, hence alleviate the mesh gateway bottleneck by leveraging on the MRs vested computational resources. It utilizes the MRs extensible storage capacity by keeping the cluster and network wide cached content, coupled with network status detection mechanism called Mesh-synch. The Mesh-synch is facilitated by the cross layer information exchange and keeps the network wide cached content synchronized among the MRs for increased the network throughput and performance.
Bryan Heisler
Research Area: Wirreless Mesh and Ad Hoc Networking
Thesis Topic: Underwater Acoustic Communication Protocol for Sucba Diving
Email:
Website:
Description ::
In this research, we study the design and evaluation of a communication system for scuba divers that will provide greater safety and
easier search and recovery in the case of a mishap. The divers will be clustered
based on their proximity to other divers.
Nikhil Saxena
Research Area: Wirreless Mesh and Ad Hoc Networking
Thesis Topic: Reputation and Trust Based Security in Wireless Mesh Networks
Email:
Website:
Description ::
The research proposes architecture for community WMN which can detect presence of selfish mesh routers and enforce cooperation among the network nodes. The architecture assumes a self-configured network in which mesh routers can be added to extend its coverage. The bulk of the traffic in the WMN is directed towards and away from the Mesh Gateways. The mesh routers have multiple radios and a routing metric like WCETT is used by the routing protocol which chooses paths with minimal intra-flow interference.
The architecture has a set of localized dedicated monitoring agents called Mesh Monitoring Agents (MMA) which detect the presence of selfish nodes in their local neighborhood. MMA have radios to receive and send wireless signals but they are not used for routing purpose and exclusively used for observing the behavior of mesh routers in its Mesh Group.
The architecture makes it mandatory for every mesh router in the network needs to join a mesh group formed an MMA to be able to use the network’s services. After being deployed, MMAs periodically broadcast special beacon messages; the mesh routers which receive these beacons reply to the strongest beacon and join the mesh group corresponding to that MMA. Every node in a cluster shares a unique key with the MMA of that cluster, which can be exchanged by existing Key Distribution Techniques.
The mesh routers maintain the information about packets received and sent by them over a predefined interval of time and periodically submit that information to its MMA. Based on the information submitted by the routers of the group the MMA makes a decision about their behavior. The MMA maintains the reputation of each mesh router and those which continue to behave in selfish manner are eventually excluded from the network.
Jayt Jugmohan
Research Area: Pervasive/Ubiquitous Computing
Thesis Topic: Efficient Integration of RFID with WLAN and cellular networks
Email:
Website:
Description ::
There has been research conducted for the communications between the three separate research topics below but the lack of combining all three instances with efficient modern techniques is lacking. These three separate topics would be the communication between; RFID reader and RFID tags, Reader and cellular/WLAN device and lastly Cellular/WLAN and the internet. There have been steady improvements in all three fields providing security, collision preventions and efficiency, with the combination of these techniques they could provide essential help for many industries.
Objectives for the proposed research
RFID technology has shown a wide amount of improvements which has been extremely beneficial for many industries. With the steady improvements with security, scalability and being able to be traceable many new companies have began investing into this technology. An interesting idea to consider with RFID technology is the combination of RFID system with internet or cellular devices. In order to develop such an innovative idea it will be important to explore crucial aspects that would still need to be developed with new and modern algorithms. Therefore we are proposing to experiment with the development of a series of algorithms that would combine RFID technology (reader and tags) with cellular networks or WLAN in order to create a bidirectional transferring of data from the internet. The overall architecture that will need to be explored will be subdivided into 3 sections; communication between RFID reader and RFID tag with emphasis on security and scalability, RFID reader and cellular/WLAN devices and lastly between cellular/WLAN and the internet. Hardware implementation and testing could be a potential next step in future development of this technique. If successful this technique could prove extremely beneficial for a wide variety of industries and personal usages.
