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— In this paper we address the issue of controlling transmission power in power-aware adhoc networks. Previous work that minimizes the transmission power does not consider both the energy consumed in collision resolution and the energy disbursed to overcome the interference resulting from neighboring nodes. We investigate the basic transmission power(More)
Denial-of-Service (DoS) attacks remain a challenging problem in the Internet. In a DoS attack the attacker is attempting to make a resource unavailable to its intended legitimate clients. Furthermore, in order to employ massive attack power, the attacker usually launches a distributed denial of service (DDoS) attack, in which several subordinate hosts(More)
—In wireless adhoc networks channel and energy capacities are scarce resources. However, the design of the IEEE 802.11 DCF protocol leads to an inefficient utilization of these resources. In this paper we introduce BLAM, a new Battery Level Aware MAC protocol , which is developed from an energy-efficiency point of view to extend the useful lifetime of an(More)
— In Wireless Sensor Networks (WSNs), the users' objective is to extract useful global information by collecting individual sensor readings. Conventionally, this is done using in-network aggregation on a spanning tree from sensors to data sink. However, the spanning tree structure is not robust against communication errors; when a packet is lost, so is a(More)
Wireless networks have a constraint on their functional lifetime. This is due to the limited energy capacity of batteries powering the wireless nodes. For extending the lifetime of such battery-operated networks, we present a scheme for dynamically selecting the transmission rate for each node in the network. The transmission rate is based on the available(More)
In this paper we address the issue of controlling transmission power in power-aware adhoc networks. We argue that minimum transmission power is not always optimal. Previous work that minimizes the transmission power does not consider both the energy consumed in collision resolution and the energy disbursed to overcome the interference resulting from(More)
In wireless mobile adhoc networks (MANETs) channel and energy capacities are scarce resources, a lot of energy-efficient routing protocols for MANETs have been previously proposed to take into consideration the nodes' residual energies when establishing routes between source-destination pairs. In this paper we are not trying to introduce a new routing(More)
—The current trend to move from homogeneous to heterogeneous multi-core systems promises further performance and energy-efficiency benefits. A typical future heterogeneous multi-core system includes two distinct types of cores, such as high performance sophisticated (" large ") cores and simple low-power (" small ") cores. In those heterogeneous platforms,(More)
—Network function virtualization (NFV) promises significant cost savings, flexibility and ease of deployment. However , the lack of large scale operational deployments inhibits detailed understanding of the real world performance of vir-tualized network elements. For example, unlike data centers which have fairly straightforward switching, traditional(More)