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Performance enhancement of DQMAN-based wireless ad hoc networks in multi-hop scenarios
Alonso Zárate, Jesús; Verikoukis, Christos; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. GRCM - Grup de Recerca en Comunicacions Mòbils
Two mechanisms to improve the performance of wireless ad hoc networks in multi-hop scenarios wherein the distributed queuing MAC protocol for mobile ad hoc networks (DQMAN) is executed are proposed and evaluated in this paper. DQMAN organizes the network into dynamic clusters forming spontaneous master-slave architectures to manage the radio resources. In multihop settings its performance is hampered by intercluster interference (interference caused between adjacent clusters) and the presence of isolated nodes that cannot get associated to any cluster. The Three Hop Master minislot (3HMS) and the active listening (AL) mechanisms are presented in this paper to cope with these problems. It is worth noting that these mechanisms could be indeed applied to any centralized network or any clustered ad hoc network. Computer simulations show an overall improvement of the system performance in terms of throughput and average packet transmission delay in comparison to both the basic definition of DQMAN and the legacy IEEE 802.11 MAC protocol in ad hoc mode (DCF) when the enhanced mechanisms are used.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors
Wireless LANs
Computer network protocols
Ad hoc networks Computer simulation Interference Master-slave Media Access Protocol Mobile ad hoc networks Radio spectrum management Resource management Spread spectrum communication Wireless application protocol
Xarxes locals sense fil Wi-Fi
Protocols de xarxes d'ordinadors
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Institute of Electrical and Electronics Engineers (IEEE)
         

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