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All Outputs (54)

MLE for receiver-to-receiver time synchronization in wireless networks with exponential distributed delays (2014)
Presentation / Conference Contribution

© 2014 IEEE. Receiver-to-receiver time synchronization in wireless networks is considered, and appropriate maximum-likelihood estimators (MLE) for environments with exponential distrusted reception delays are proposed. In the receiver-to-receiver syn... Read More about MLE for receiver-to-receiver time synchronization in wireless networks with exponential distributed delays.

Cost effective node deployment strategy for energy-balanced and delay-efficient data collection in wireless sensor networks (2014)
Presentation / Conference Contribution

© 2014 IEEE. The real-world node deployment aspect is investigated, while considering cost minimization for resolving the energy hole around the sink, which represents a serious problem in typical sensor networks with uniform distribution. A novel st... Read More about Cost effective node deployment strategy for energy-balanced and delay-efficient data collection in wireless sensor networks.

Intertwined medium access scheduling of upstream and downstream traffic in wireless sensor networks (2014)
Presentation / Conference Contribution

© 2014 IEEE. In wireless sensor networks, the sensor data are often aggregated en-route to the base-station in order to eliminate redundancy and conserve the network resources. The basestation not only acts as a destination for the upstream data traf... Read More about Intertwined medium access scheduling of upstream and downstream traffic in wireless sensor networks.

Preface of the 6th IEEE international workshop on management of emerging networks and services (IEEE Globecom MENS 2014) (2014)
Presentation / Conference Contribution

© 2014 IEEE. This short paper serves as the preface of the 6th IEEE International Workshop on Management of Emerging Networks and Services (IEEE Globecom MENS 2014). The 6th IEEE MENS 2014 attracted a significant number of papers this year, as in the... Read More about Preface of the 6th IEEE international workshop on management of emerging networks and services (IEEE Globecom MENS 2014).

On the relevance of using interference and service differentiation routing in the internet-of-things (2013)
Presentation / Conference Contribution

Next generation sensor networks are predicted to be deployed in the Internet-of-the-Things (IoT) with a high level of heterogeneity. They will be using sensor motes which are equipped with different sensing and communication devices and tasked to del... Read More about On the relevance of using interference and service differentiation routing in the internet-of-things.

Duo-MAC: Energy and time constrained data delivery MAC protocol in wireless sensor networks (2013)
Presentation / Conference Contribution

We present Duo-MAC, an asynchronous cascading wake-up scheduled MAC protocol for heterogeneous traffic forwarding in low-power wireless networks. Duo-MAC deals with energy-delay minimization problem and copes with transmission latency encountered by... Read More about Duo-MAC: Energy and time constrained data delivery MAC protocol in wireless sensor networks.

Fault-tolerant implementation of a distributed MLE-based time synchronization protocol for wireless sensor networks (2013)
Presentation / Conference Contribution

This paper describes the implementation and evaluation of R4Syn protocol on MICAz platform and TinyOS operating system. The contribution is two folds. First, the implementation uses thorough maximum-likelihood estimators (MLE) in the joint offset/ske... Read More about Fault-tolerant implementation of a distributed MLE-based time synchronization protocol for wireless sensor networks.

Theoretical estimators and lower-bounds for receiver-to-receiver time synchronization in multi-hop wireless networks (2013)
Presentation / Conference Contribution

Maximum likelihood estimators (MLE) for time synchronization parameters of receiver-to-receiver protocols are derived. The MLE are first provided for a single-hop model, then generalized to a multi-hop model. The appropriate Cramer- Rao lower bounds... Read More about Theoretical estimators and lower-bounds for receiver-to-receiver time synchronization in multi-hop wireless networks.

A study of wireless sensor networks for urban traffic monitoring: Applications and architectures (2013)
Presentation / Conference Contribution

With the constant increasing of vehicular traffic around the world, especially in urban areas, existing traffic management solutions become inefficient. This can be clearly seen in our life through persistent traffic jam and rising number of accident... Read More about A study of wireless sensor networks for urban traffic monitoring: Applications and architectures.

Slotted contention-based energy-efficient MAC protocols in delay-sensitive wireless sensor networks (2012)
Presentation / Conference Contribution

This paper considers slotted duty-cycled medium access control (MAC) protocols, where sensor nodes periodically and synchronously alternate their operations between active and sleep modes to save energy. Communications can occur only when nodes are i... Read More about Slotted contention-based energy-efficient MAC protocols in delay-sensitive wireless sensor networks.

Self-repairing clusters for time-efficient and scalable actor-fault-tolerance in wireless sensor and actor networks (2011)
Presentation / Conference Contribution

A new solution for fault-tolerance in wireless sensor and actor networks (WSAN) is proposed. The solution deals with fault-tolerance of actors, contrary to most of the literature that only considers sensors. It considers real-time communication, and... Read More about Self-repairing clusters for time-efficient and scalable actor-fault-tolerance in wireless sensor and actor networks.

Distributed receiver/receiver synchronization in wireless sensor networks: New solution and joint offset/skew estimators for Gaussian delays (2011)
Presentation / Conference Contribution

This paper proposes a new synchronization protocol for wireless sensor networks (WSN). The proposed protocols is based on the receive/reieve approach, which was introduced by the Reference Broadcast Synchronization (RBS). This approach has been chose... Read More about Distributed receiver/receiver synchronization in wireless sensor networks: New solution and joint offset/skew estimators for Gaussian delays.

Power-aware QoS geographical routing for wireless sensor networks - Implementation using Contiki (2010)
Presentation / Conference Contribution

This paper presents the design and implementation of a new geographical quality of service (QoS) routing for wireless sensor networks. The protocol is based on traffic differentiation and provides customized QoS according to the traffic requirement.... Read More about Power-aware QoS geographical routing for wireless sensor networks - Implementation using Contiki.