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Efficient packet transmission in wireless ad hoc networks with partially informed nodes

Abstract : One formal way of studying cooperation and incentive mechanisms in wireless ad hoc networks is to use game theory. In this respect, simple interaction models such as the forwarder's dilemma have been proposed and used successfully. However, this type of models is not suited to account for possible fluctuations of the wireless links of the network. Additionally, it does not allow one to study the way a node transmits its own packets. At last, the repeated game models used in the related literature do not allow the important scenario of nodes with partial information (about the link state and nodes actions) to be studied. One of the contributions of the present work is precisely to provide a general approach to integrate all of these aspects. Second, the best performance the nodes can achieve under partial information is fully characterized for a general form of utilities. Third, we derive an equilibrium transmission strategy which allows a node to adapt its transmit power levels and packet forwarding rate to link fluctuations and other node actions. The derived results are illustrated through a detailed numerical analysis for a network model built from a generalized version of the forwarder's dilemma. The analysis shows in particular that the proposed strategy is able to operate in the presence of channel fluctuations and to perform significantly better than the existing transmission mechanisms (e.g., in terms of consumed network energy).
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Submitted on : Sunday, December 15, 2019 - 8:47:43 AM
Last modification on : Friday, July 31, 2020 - 10:44:11 AM
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Sara Berri, Samson Lasaulce, Mohammed Radjef. Efficient packet transmission in wireless ad hoc networks with partially informed nodes. EURASIP Journal on Wireless Communications and Networking, SpringerOpen, 2019, 2019, ⟨10.1186/s13638-019-1422-4⟩. ⟨hal-02411646⟩



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