A sensor network is a network comprised of many small, wireless, resourcelimited nodes that sense data about their environment and report readings to a base station. One technique to conserve power in a sensor network is to aggregate sensor readings hop-by-hop as they travel towards a base station, thereby reducing the total number of messages required to collect each sensor reading. In an adve...

An error resilient architecture for video transmission over mobile wireless networks is presented. Radio link layer, transport layer, and application layer are combined to deal with high error rate in wireless environments. The algorithms for both sender and receiver are given. An adaptive algorithm is presented to automatically adjust parity data length in error control. The performance of the...

We report on an emerging application focused on the design of resilient long reach passive optical networks using combinatorial optimisation techniques. The objective of the application is to determine the optimal position and capacity of a set of metro nodes. We specifically consider dual parented networks whereby each customer must be associated with two metro nodes. An important property of ...

Body sensor networks have gained continuous popularity in applications such as monitoring, sports training, and interactive gaming. However, data communication reliability is critical for the success of various applications such as ECG/EKG data analysis. In this paper, we propose a loss resilient strategy where prioritized scheduling and packet concatenation schemes are integrated for high netw...

An end-to-end data delivery protocol for dynamic communication networks is presented. The protocol uses bounded sequence numbers and can tolerate both link failures and (intermediate) processor crashes. Previous bounded end-to-end protocols could not tolerate crashes. We present a self-stabilizing version of the algorithm that can recover from crashes of the sender and the receiver as well as o...

Multi-robot networks use wireless communication to provide wide-ranging services such as aerial surveillance and unmanned delivery. However, effective coordination between multiple robots requires trust, making them particularly vulnerable to cyber-attacks. Specifically, such networks can be gravely disrupted by the Sybil attack, where even a single malicious robot can spoof a large number of f...

An optimal cost-reducing capacity-dimensioning is crucial for network operators when designing communication networks. Failure-free working as well as backup routes have to be installed in order to guarantee Quality of Service and availability requirements. With traditional network planning techniques using linear programming with the flow-approach [1] or the path-approach [2] optimal configura...

Drones are broadening their scope to various applications such as networking, package delivery, agriculture, rescue, and many more. For proper operation of drones, reliable communication should be guaranteed because drones are remotely controlled. When drones experience communication failure due to bad channel condition, interference, or jamming in a certain area, one existing solution is to ex...

This report proposes a general architecture for error resilient video transmission over mobile wireless networks. Radio link layer, UDP Lite, and error control layer are combined to deal with high error rate in wireless environments. Both sender and receiver algorithms are given. An adaptive algorithm is further presented to automatically adjust parity data length in error control. The performa...