TUD Logo

TUD Home » ... » Research Projects » Current Projects » Current Projects

Computer Networks

Current Projects


DFG: A self-adaptive MAC protocol for supporting mobile nodes in wireless sensor networks

  • Wireless sensor networks
  • MAC Protocol
  • DFG


Several applications have been proposed for wireless sensor networks. Some of them, such as the ones proposed for supervising the rehabilitation of patients, require mobile nodes. But mobility brings with it several challenges. This project will address two of them, namely, (1) the need to reduce the latency of establishing new links and (2) the need to adapt the duty cycle of static nodes to support an energy-efficient and a quality-of-service-aware multi-hop communication. For both challenges, we propose to adopt Bayesian Estimation approach to model and reason about the deterioration rate of a link quality between a mobile and a static node and the packet arrival and departure rates of relay nodes. Thus, we model link quality deterioration and packet reception rate as random processes and dynamically update their probability density functions at runtime by analysing the quality of received packets. We then employ the density functions to predict future link quality and packet arrival rate. The prediction will then serve to carry out a seamless handover and to dynamically and asynchronously adapt the duty cycle of relay nodes.

Project promotion:

Deutsche Forschungsgemeinschaft
DA 1211/5-1

Project leader:

PD. Dr.-Ing. habil. Waltenegus Dargie

Project staff:

Dr.-Ing. Zeeshan Ansar
Eyuel Debebe Ayele
Prof. Dr. rer. nat. habil. Dr. h. c. Alexander Schill
Dr. -Ing. Jianjun Wen

Recent publications:

Student Assignments:

    1. Ran Zhang:
    Dynamic and Efficient Brokering of Energy Suppliers and Consumers in a Smart Grid;
    Master thesis; 15.09.2015; Supervising tutor: Waltenegus Dargie

Last modified: 17th Oct 2019, 12.43 AM
Author: Webmaster

Romy Jarschel

Phone: +49 (0) 351 463-38263
Fax: +49 (0) 351 463-38251
e-mail contact form