CAOR: Context-aware Adaptive Opportunistic Routing in Mobile Ad-hoc Networks

Zhao, Zhongliang; Braun, Torsten; Rosário, Denis; Cerqueira, Eduardo (20 May 2014). CAOR: Context-aware Adaptive Opportunistic Routing in Mobile Ad-hoc Networks. In: 7th IFIP Wireless and Mobile Networking Conference (WMNC) (pp. 1-8). IEEE 10.1109/WMNC.2014.6878878

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Opportunistic routing (OR) employs a list of candidates to improve wireless transmission reliability. However, conventional list-based OR restricts the freedom of opportunism, since only the listed nodes are allowed to compete for packet forwarding. Additionally, the list is generated statically based on a single network metric prior to data transmission, which is not appropriate for mobile ad-hoc networks (MANETs). In this paper, we propose a novel OR protocol - Context-aware Adaptive Opportunistic Routing (CAOR) for MANETs. CAOR abandons the idea of candidate list and it allows all qualified nodes to participate in packet transmission. CAOR forwards packets by simultaneously exploiting multiple cross-layer context information, such as link quality, geographic progress, energy, and mobility.With the help of the Analytic Hierarchy Process theory, CAOR adjusts the weights of context information based on their instantaneous values to adapt the protocol behavior at run-time. Moreover, CAOR uses an active suppression mechanism to reduce packet duplication. Simulation results show that CAOR can provide efficient routing in highly mobile environments. The adaptivity feature of CAOR is also validated.

Item Type:

Conference or Workshop Item (Paper)


08 Faculty of Science > Institute of Computer Science (INF) > Communication and Distributed Systems (CDS)
08 Faculty of Science > Institute of Computer Science (INF)

UniBE Contributor:

Zhao, Zhongliang; Braun, Torsten and Lima do Rosario, Denis


000 Computer science, knowledge & systems
500 Science > 510 Mathematics






Dimitrios Xenakis

Date Deposited:

09 May 2014 09:52

Last Modified:

01 May 2020 10:47

Publisher DOI:





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