@conference {
	title = {Performance Evaluation and Traffic Analysis for Routing Protocols in a Real MANET},
	author = {Chen, Huigang., Jou,  Jia-Shiang., Dharmaraju, Dinesh., Papageorgiou, George., Baras, John S.},
	year = {2003},
	month = {04/2003},
	abstract = {Mobile Ad-hoc NETworks (MANETs) are characterized by bandwidth constrained links, multiple hops, varying link qualities and highly dynamic topologies. In this paper, we evaluate the performance and analyze the traffic of a mobile ad-hoc network in a realistic setting. Using simulation, we provide results of performance evaluation in terms of various metrics. We study performance with scenarios of different propagation matrices, different traffic mixes, and different routing protocols (DSDV, DSR, AODV). The results show that in most cases, the performance is sensitive to the routing protocol, path loss, and traffic characteristics. This provides rationale and insight for choosing the right protocols to provide quality of service in terms of different metrics in different environments. Also, we find that in a MANET, we obtain long-range dependency traffic regardless of source file size distribution. This discovery will help in providing methodology to tackle the network dimensioning problem in ad hoc networks.},
	address = {College Park, Maryland},
	booktitle = {Collaborative Technology Alliances (CTA) Communications \&amp; Networks (C\&amp;N) Alliance - 2003 Annual Symposium},
	pages = {pp.147-151},
	organization = {University of Maryland Conference Center}
}
@conference {
	title = {Dynamic Clustering for Transmission Range Control in Ad Hoc Networks},
	author = {Manousakis, Kyriakos., Baras, John S.},
	year = {2003},
	month = {04/2003},
	abstract = {Ad hoc networks have being given a lot of attention in recent years. The problems associated with this kind of networks are many and difficult to solve because of their dynamic nature {\textendash} networks with non-static topology and non-static infrastructure. A large number of the issues under investigation are related with the finite power of the mobile devices. In terms of the communication tasks that those devices perform, the transmission power that is utilized plays a very important role to the long-term survivability of the network. The issue of transmission power affects the connectivity of the network, in a way that when the utilized transmission power is small then the network may be partitioned. In this work the latter has equivalent importance with the case where the assignment of excessive transmission power, resulting in a very dense net of communication links. When we use large transmission power then the long-term survivability and connectivity of the network is jeopardized because the nodes use their finite power inefficiently. Our task is to adjust the transmission power to the level where both the connectivity of the network is ensured and the transmitted power is minimized among all participating devices.},
	address = {College Park, Maryland},
	booktitle = {Collaborative Technology Alliances (CTA) Communications \&amp; Networks (C\&amp;N) Alliance - 2003 Annual Symposium},
	organization = {University of Maryland Conference Center}
}
@conference {
	title = {Distributed Trust Establishment in MANETs{\textquoteright} Swarm Intelligence},
	author = {Eschenauer, Laurent., Baras, John S., Gligor, Virgil D.},
	year = {2003},
	month = {04/2003},
	abstract = {We present some properties of trust establishment in mobile, ad-hoc networks and illustrate how they differ from those of trust establishment in the Internet. We present a framework for trust establishment in mobile ad-hoc networks and argue that peer-to-peer networks are especially suitable to solve the problems of generation, distribution, and discovery of trust evidence in mobile ad-hoc networks. We develop a new scheme based on swarm intelligence and demonstrate its advantages over the peer to peer scheme. We evaluate our approach through simulation with NS-2.},
	address = {College Park, Maryland},
	booktitle = {Collaborative Technology Alliances (CTA) Communications \&amp; Networks (C\&amp;N) Alliance - 2003 Annual Symposium},
	pages = {pp. 125-129},
	organization = {University of Maryland Conference Center}
}
@conference {
	title = {Efficient Source Authentication for Multicasting in MANETs},
	author = {Baras, John S., Ramachandran, Prabha.},
	year = {2003},
	month = {04/2003},
	abstract = {In this paper, we investigate a popular source authentication scheme, TESLA (Timed Efficient Stream Loss-tolerant Authentication) for multicast communication in mobile ad hoc networks. We evaluate the performance of a source authentication scheme inspired from TESLA and mu-TESLA based on simulations. Time synchronization is a crucial assumption made by these schemes. We describe effective means to achieve time synchronization in MANETs and conclude that overlay networks, whether they are UAVs or satellites are essential for high efficiency and performance. Since such overlay networks are typical in hierarchical wireless mobile networks, the proposed schemes are very appropriate for these scenarios. We claim that having an overlay network will help in routing and key distribution, in addition to time synchronization.},
	address = {College Park, Maryland},
	booktitle = {Collaborative Technology Alliances (CTA) Communications \&amp; Networks (C\&amp;N) Alliance - 2003Annual Symposium},
	organization = {University of Maryland Conference Center}
}
@conference {
	title = {Efficient Scalable Key Agreement Protocols for Secure Multicast Communication in MANETs},
	author = {Striki, Maria., Baras, John S.},
	year = {2003},
	month = {04/2003},
	abstract = {In this paper protocols for group key distribution are compared and evaluated from the point of view of Mobile Ad Hoc Networks (MANETs). A MANET is a collection of wireless mobile nodes, communicating among themselves over possibly multihop paths, without the help of any infrastructure such as base stations or access points. So the need to render those networks as autonomous and secure as possible, since no central authorization can be assumed at all times, becomes emergent. Key management is the service that ensures the security of communication among nodes, and the capability of their cooperation as a secure group. It consists of three important services: key generation, user authentication and key distribution. In this work we assume that the participating users have already been authenticated with some mechanism, and we are focused only on studying and comparing protocols for group key establishment in MANETs. We distinguish the protocols in two families, the contributory and noncontributory and we evaluate them from the point of view of MANETs.},
	address = {College Park, Maryland},
	booktitle = {Collaborative Technology Alliances (CTA) Communications \&amp; Networks (C\&amp;N) Alliance - 2003 Annual Symposium},
	organization = {University of Maryland Conference Center}
}
@conference {
	title = {Dynamic Adaptive Routing in MANETs},
	author = {Baras, John S., Mehta, Harsh.},
	year = {2003},
	month = {04/2003},
	abstract = {Mobile ad hoc networks are infrastructure-less networks consisting of wireless, possibly mobile nodes that are organized in peer-to-peer and autonomous fashion. The highly dynamic topology, limited bandwidth availability and energy constraints make the routing problem a challenging one. The Swarm Intelligence paradigm has recently been used in solving the routing problem in static computer networks with encouraging results. These algorithms have been proven to be robust and resilient to topology changes. In this paper, we present performance results on a new routing algorithm for MANETs based on the swarm intelligence paradigm. We present simulation results that measure the performance of our algorithm with respect to the characteristics of a MANET, the varying parameters of the algorithm itself as well as performance comparison with other well-known MANET routing protocols.},
	address = {College Park, Maryland},
	booktitle = {Collaborative Technology Alliances (CTA) Communications \&amp; Networks (C\&amp;N) Alliance- 2003 Annual Symposium},
	pages = {pp. 367-371},
	organization = {University of Maryland Conference Center}
}
@conference {
	title = {A framework for automated negotiation of access control policies},
	author = {Bharadwaj, Vijay G., Baras, John S.},
	year = {2003},
	month = {04/2003},
	abstract = {Our research examines the problem of negotiating access control policies between autonomous domains. Our objective is to develop software agents that can automatically negotiate access control policies between autonomous domains with minimal human guidance. In this paper we describe a mathematical framework that is capable of expressing many such negotiation problems, and illustrate its application to some practical scenarios.},
	address = {Washington DC},
	booktitle = {DARPA Information Survivability Conference and Exposition}
}
@conference {
	title = {Integrated security services for dynamic coalitions},
	author = {Khurana, Himanshu., Serban Gavrila, Bobba, Rakeshbabu., Koleva, Radostina. , Sonalker, Anuja., Dinu, Emilian., Gligor, Virgil D., Baras, John S.},
	year = {2003},
	month = {04/2003},
	abstract = {Coalitions are collaborative networks of autonomous domains where resource sharing is achieved by the distribution of access permissions to coalition members based on negotiated resource-sharing agreements. The focus of our research is on dynamic coalitions, namely, coalitions where member domains may leave or new domains may join during the life of the coalition. We have developed a set of tools that integrate security services for dynamic coalitions, namely, services for (1) private and shared resource management, (2) identity and attribute certificate management, (3) secure group communication, and (4) joint administration for enforcing joint-action policies on shared critical resources. In this paper we give an overview of the architecture and implementation of our tools.},
	address = {Washington DC},
	booktitle = {2003 DARPA Information Survivability Conference and Exposition},
	pages = {pp. 38-40}
}
@conference {
	title = {Using Broadband Satellite Systems to Support Aeronautical Communication},
	author = {Shang, Yadong., Hadjitheodosiou, Michael., Baras, John S.},
	year = {2003},
	month = {04/2003},
	abstract = {In this paper we discuss the possibility of using a broadband satellite-based system to support aeronautical communications. First, we investigate the applications and service requirements for current and future aeronautical communications. Then the communication system and network architecture are outlined and some of the system components are discussed in detail, including the satellite transmission channel, the airplane on-board network, and various aspects of aeronautical terminals. Finally we present a simulation analysis of the system with the focus on meeting the Quality of Service requirements for identified service categories.},
	address = {Yokohama, Japan},
	booktitle = {23rd AIAA International Communications Satellite Systems Conference and Exhibit (ICSSC)},
	pages = {pp. 1-9}
}
