On-demand Geographic Forwarding for data delivery in wireless sensor networks

Dazhi Chen, Pramod K. Varshney

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


A purely on-demand network protocol, called On-demand Geographic Forwarding (OGF), is proposed for data delivery in large-scale and resource-constrained static wireless sensor networks with unreliable sensors. OGF is a cross-layer protocol that employs (i) an explicit contention scheme to establish a next-hop node in a distributed fashion, (ii) a simple scheme using a forwarding table to maintain the learned next-hop information, and (iii) a novel partial source routing scheme to handle communication voids. The operation of our protocol is based on the actual demands of the application, data traffic, and network dynamics. Packet-level simulations show that OGF exhibits a superior performance in terms of energy consumption, scalability, and void handling. Our study demonstrates that OGF is viable for efficient data delivery in the targeted sensor networks.

Original languageEnglish (US)
Pages (from-to)2954-2967
Number of pages14
JournalComputer Communications
Issue number14-15
StatePublished - Oct 15 2007


  • Communication void
  • Data delivery
  • Geographic forwarding
  • Sensor networks

ASJC Scopus subject areas

  • Computer Networks and Communications


Dive into the research topics of 'On-demand Geographic Forwarding for data delivery in wireless sensor networks'. Together they form a unique fingerprint.

Cite this