Nowadays, mobile ad hoc networks (MANETs) have to support new applications including VoIP (voice over IP) that impose\nstringent QoS (quality of service) constraints and requirements. However, VoIP applications make a very inefficient use of the\nMANET resources. Our work represents a first step toward improving aspects at the network layer by addressing issues from the\nstandpoint of adaptation, claiming that effective adaptation of routing parameters can enhance VoIP quality.The most important\ncontribution is the adaptive OLSR-VA algorithm which provides an integrated environment where VoIP activity is constantly\ndetected and routing parameters are adapted in order to meet the application requirements. To investigate the performance\nadvantage achieved by such algorithm, a number of realistic simulations (MANET scenarios) are performed under different\nconditions. The most important observation is that performance is satisfactory in terms of the perceived voice quality.
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