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Physical-layer network coding (PNC) is a promising approach for wireless networks. It allows nodes to transmit simultaneously. Due to the difficulties of scheduling simultaneous transmissions, existing works on PNC are based on simplified medium access control (MAC) protocols, which are not applicable to general multihop wireless networks, to the best of our knowledge. In this paper, we propose a...
Packet forwarding in Vehicular Networks is gathering a booming interest in research area as cooperation of nodes becomes important for such a scenario. The presence of selfish nodes reluctant to transfer data packets are the most critical concern in packet forwarding. From explanations of game theory this is a social dilemma situation that gives a suboptimal outcome from a collective standpoint. Strategic...
Disruption-tolerant networks (DTNs) have gained great attractions recently by addressing intermittent network connectivity suffered due to short radio transmission range, high node mobility, sporadic node densities, etc. Data communication across DTN is achieved over store-carry-forward (SCF) paradigm by exploiting temporary wireless links and connections opportunistically arising from mobility nature...
Solving Fastest Distributed Consensus (FDC) averaging problem over sensor networks with different topologies has received some attention recently and one of the well known topologies in this issue is star-mesh hybrid topology. Here in this work we present analytical solution for the problem of FDC algorithm by means of stratification and semidefinite programming, for the Star-Mesh Hybrid network with...
Data communication over intermittently connected mobile ad hoc networks (ICMANs) can be carried out by opportunistically employment of mobility nature of nodes and the storage space of all nodes. In order to overcome mobility randomness and subsequently uncertainty of future network state, multi-copy-based routing approaches are widely considered. However, scalability is still an issue, even extra...
Estimating the location of mobile terminals in dense urban environments is still an open issue. This paper proposes a new radiolocation technique which is robust to severe Non-Line-of-Sight and multipath propagation conditions that are typical of urban microcellular and picocellular systems. In the proposed technique, three-dimensional location estimation can be achieved by counting the number of...
Future cellular systems target the provision of high-speed multimedia and data services. However, support of such new services intensifies traffic burstiness and poses an increase of threat of congestion. This paper proposes a cooperative cellular architecture through which load balancing is achieved by exploiting the broadcast nature of radio waves and using minimum overhead. Unlike other existing...
This paper proposes a security control framework for mitigating epidemic and pandemic network attacks in Next Generation Mobile Networks (NGMN) by adopting several interesting principles from the human immune system (HIS) and the field of epidemiology. In particular, the proposed framework incorporates two key components: namely, the attack localization process and the attack recovery process. While...
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