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Due to its applications in marine research, oceanographic, and undersea exploration, underwater communication has been recently under intense investigation. In the last years, several works have studied the communication between autonomous underwater vehicles (AUV). Although underwater communication has been improving its performance (in terms of bandwith, QoS, etc.), image transmission in AUVs networks...
Rate, energy and delay are three main parameters of interest in ad-hoc networks. In this paper, we discuss the problem of maximizing network utility and minimizing energy consumption while satisfying a given transmission delay constraint for each packet. We formulate this problem in the standard convex optimization form and subsequently discuss the tradeoff between utility, energy and delay in such...
In this paper, we consider the problem of information discovery in wireless sensor networks (WSNs), where the search initiator is unaware of any of the gamma locations of target information. One of the fundamental techniques which is used for this purpose is random walk since it has several advantages like low cost (number of bytes transmitted) compared to flooding, load balancing among nodes, and...
One of the intrinsic problems posed by mobility in wireless networks is the discovery of other nodes in the vicinity of a node to establish new links with them as well as detecting a link breakage. A widely used solution for this problem is to use different variations of beaconing. Here, we study the effect of the beacon settings on the link reliability and probability of link establishment. A poorly...
In wireless sensor networks, asynchronous sleep-wake scheduling protocols can significantly reduce energy consumption without incurring the communication overhead for clock synchronization used in typical sleep-wake scheduling protocols. However, the savings could come at a significant cost in delay performance. Recently, researchers have attempted to exploit the inherent broadcast nature of the wireless...
Peer-to-Peer (P2P) networks are frequenlty used for data sharing over mobile ad hoc networks (MANETs) due to their decentralization and high tolerance to failures. However, P2P networks do not perform well on MANETs. Structured P2P networks have a high level of unsuccessful queries due to the message drops, while unstructured networks saturate quickly due to the high number of messages sent. This...
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