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This paper deals with blind propagation channel estimation that should be a key feature for future agile waveforms. The proposed approach is based on high order statistics, inverse Fourier Transform and auto-deconvolution. The paper can be seen as a follow up to a previous work devoted to this subject [10]. It introduces an important improvement in the auto-deconvolution step based on a whitening...
A major challenge in wireless sensor network (WSN) is data collection in a disconnected network while ensuring a viable throughput for the sensors or the nodes in the network. Incorporating mobility-assisted data collection where no other means of data gathering is feasible is a growing trend among researchers. There are many works in literature which exploit mobility to derive throughput using protocol...
Routing security challenges significantly impact the wide-scale adoption of mobile ad hoc networks (MANET), with wormholes constituting an especially severe threat. Wormhole detection algorithms like traversal time and hop count analysis (TTHCA) and modified transmission time-based mechanism (M-TTM) combine effective detection with low traffic overheads. TTHCA measures packet traversal time (PTT)...
The omnipresence of real-time communication has significantly increased in recent years. Nevertheless it is treated as any best effort traffic, regardless its vulnerability to network conditions. WebRTC allows communication between browsers and uses application layer mechanisms to assure the quality (e.g. congestion control), but would benefit from network layer mechanisms. In this paper we evaluate...
The end-point of the cloud trend is that all computational and storage resources leave the homes and move to the cloud. We can be rather certain the future eventually looks like this as IT and telecommunications services are commoditised and the end users' time, interest and skill to acquire and maintain electronics fade away. The network architecture suitable for such scenario will be analysed in...
This work presents and analyzes the results of millimeter-wave propagation simulations performed for over the sea LoS ship to ship communication channels. We present a channel characterization study where channel parameters such as path loss, received power, RMS delay spread, and power delay profile are obtained by using a ray tracing approach. 5G candidate frequencies, 35 GHz and 94 GHz were chosen...
In this paper we provide efficient statistical tools for the prediction of the required number of satellite terrestrial stations in a hybrid Satellite — Mobile Ad Hoc NETwork (MANET). We propose to consider the average statistical behavior of the network. We first analytically estimate the number of hybrid satellite gateway stations (HSs) in a typical cluster. A strategy for the terrestrial path discovery...
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