A New Efficient Technique to Enhance Quality of Service in OLSR Protocol

Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 915)


A routing protocol, in Mobile ad hoc networks (MANETs) use global information about the network topology and communication links to handle the data exchange between communication nodes. Several architectures and protocols have been defined to optimize transmission data between nodes. OLSR (Optimized Link State Routing) was proposed owing to Multipoint Relays (MPRs) that reduce the number of redundant retransmissions while diffusing a broadcast message in the network. In this paper we propose a new efficient mechanism, named F-QMPR-OLSR to select MPRs in OLSR protocol, which use two methods. The first use fuzzy systems based three quality of service (QoS) metrics as inputs: Buffer Availability, Stability and SINR (Signal to Interference plus Noise Ratio) and return as output the high efficient selection of MPRs. The second is to adjust the value of a node’s willingness parameter to best perform and improve network lifetime, and therefore it can improve the network transmission capacity. Implementation and simulation experiments with Network Simulator NS2 are presented in order to validate our contribution. The results show that F-QMPR-OLSR achieves a significant improvement of data packets exchange quality in term of QoS.


MANET OLSR QOLSR QMPR Fuzzy logic SINR stability Buffer 


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Authors and Affiliations

  1. 1.Department of Computer Sciences, Faculty of ScienceLaboratory in Computer Science and Telecommunications (LARIT)KenitraMorocco
  2. 2.Engineering Laboratory and Process Optimization of Industrial Systems (LIPOSI)National School of Applied SciencesKhouribgaMorocco
  3. 3.Team Networks and Telecommunications Faculty of ScienceResearch Laboratory in Computer Science and Telecommunications (LARIT)KenitraMorocco

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