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The current system design of mobile ad hoc networks (MANET), derived from their traditional fixed counterparts, cannot fully meet the requirements inherent to the dynamic nature of such networks. Cross-layer (CL) designs, a modification of the classic protocol stack, are envisioned as a solution for this problem. Many CL design approaches are proposed, each for a different optimization purpose. Mobile...
In this paper, we propose a new clustering approach, bandwidth-adaptive clustering (BAC), for MANETs. BAC forms and maintains clusters using only local topology information. To adapt to network conditions and reduce the message overhead, BAC makes members forward the maintenance messages probabilistically based on available bandwidth. The multi-hop nature and Merge operation of BAC reduce the changes...
This work is concerned with defining a performanceindex that can be used as an objective measure in the evaluation and comparison of ad hoc networking protocols. Specifically, we introduce a performance index that aggregates performance results from multiple response metrics into a single scalar value that quantifies overall system performance, leading to more objective evaluations and comparisons...
In this paper, we discuss robustness issues of a biologically inspired routing protocol for mobile ad hoc networks and the influence it has on the quality of service (QoS) in the system. Contrary to fixed network structures, ad hoc networks are susceptible to frequent topology changes due to the mobility and churn of the participating nodes. Our goal is therefore to provide fast recovery from connectivity...
Several recent research activities have started to recognize the relevant role of k-hop clustering in Mobile Ad hoc NETworks (MANET) to effectively support many relevant tasks, e.g., packet routing and information dissemination at the network and application layer, respectively, k-hop clustering determination and maintenance is especially crucial to achieve good scalability in dense MANET scenarios,...
A new physical layer technique in Hong, Y-W abd Scaglione, A., (2003) for broadcasting in multi-hop wireless ad hoc networks makes broadcast a much more efficient building block than traditional flooding broadcast. This broadcasting technique requires that all nodes that receive a message retransmit it at the same time. Because the messages are identical, interference can be constructive rather than...
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