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Research conducted at Morgan State University (MSU) has proposed a new approach for modeling and managing Quality of Service (QoS) in a cellular and ad-hoc mixed wireless network. This paper focuses on two key areas. It first introduces the “power” performance measure to model and manage the QoS requirements for wireless nodes with time critical applications as a function of the traffic level. It...
In this paper, we address a scalable key management protocol for ad hoc networks, this protocol is based on new clustering technique. The network is partitioned into communities or clusters based on affinity relationships between nodes. To ensure trusted communications between nodes we proposed two types of keys generated by each clusterhead. The protocol is adaptive according to the limitation of...
Secure and efficient communication among a set of mobile node is one of the most important research subjects in ad hoc wireless networks. Due to the resource scarcity in ad hoc networks, traditional key management protocol cannot be effectively applied to such decentralized networks. After study different strategies, in this paper the trust evaluation based clustering technique is employed to propose...
Vehicle communication (VC) represents an interesting item for both research and industry communities, since it supplies an efficient way to improve the transport quality. However, VC is confronted with a number of new challenges, in particular due to the extremely dynamic network topology and the large variable number of mobile nodes. To overcome these problems, an effective solution is to define...
Adhoc networks are self-configurable networks with dynamic topologies. All involved nodes in the network are responsible for management activities. In multihop adhoc environment, it is difficult to maintain paths through intermediate nodes, due to the mobility of nodes, nature of radio transmission etc. In the absence of an authentication mechanism, malicious nodes can easily corrupt route tables,...
A mobile ad hoc network (MANET) is an architecture without fixed infrastructure or centralized administration. However, when a message is transmitted in a multicast group, without any security infrastructure, it may be attacked or corrupted. In this paper we propose a new key management mechanism to support secure group multicast communications in ad hoc networks. The scheme proposes a dynamic construction...
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