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Abdalkarim Awad, Reinhard German and Falko Dressler, "Efficient Routing and Service Discovery in Sensor Networks using Virtual Cord Routing," Proceedings of 7th ACM International Conference on Mobile Systems, Applications, and Services (MobiSys 2009), Demo Session, Kraków, Poland, June 2009.


We show the feasibility of efficient routing and service discovery in sensor networks using the Virtual Cord Protocol (VCP). Scalable and energy efficient data management is still a challenging topic in this domain. This problem domain is being addressed by recent Distributed Hash Table (DHT)-based approaches for data management in Wireless Sensor Networks (WSNs). In general, such solutions can be classified in three main categories: real location based, virtual location based, and location independent, whereby the most recent approaches for data management and routing in WSNs rely on virtual coordinates. Inspired by DHTs and bringing this idea down to the underlay, efficient routing paths can be maintained together with the capability to store information and data in a DHT-like system. The first solution in this field has been Virtual Ring Routing (VRR) [1]. It uses a location independent unique key to identify nodes and to organize them into a virtual ring. The problem of this protocol is that the adjacent nodes in the ring can be far away in the real network. Moreover, dead ends cannot be completely prevented. Later on, VCP has been proposed, which shows a couple of advantages compared to VRR [2]. The concept of the protocol always ensures reachability of all destinations and optimizes routes on the fly by exploiting information about physical neighbors. Using the concept of indirections, VCP also provides efficient resource and service discovery. This demo shows the applicability of VCP for efficient routing and data management in sensor networks. After evaluating the protocol using comprehensive simulation studies in previous work [2, 3], we implemented the protocol on the BTnode sensor node platform, which is based on an Atmel ATmega128 micro controller and a CC1000 radio transmitter. We show the feasibility of the protocol implementation in a small but easy to understand demo scenario.

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Abdalkarim Awad
Reinhard German
Falko Dressler

BibTeX reference

    author = {Awad, Abdalkarim and German, Reinhard and Dressler, Falko},
    title = {{Efficient Routing and Service Discovery in Sensor Networks using Virtual Cord Routing}},
    publisher = {ACM},
    address = {Krak{\'{o}}w, Poland},
    booktitle = {7th ACM International Conference on Mobile Systems, Applications, and Services (MobiSys 2009), Demo Session},
    month = {6},
    year = {2009},

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