The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, we propose a new protocol for sensors Frequency Shift Keying data transmission named RF-Tania protocol framework. This protocol focuses on Energy Efficiency and it is based on an existent open source protocol stack. Tania protocol framework includes a set of three protocols: The Sensors Data Transmission Protocol (Tania-SDTP), the Ad-Hoc On Demand Protocol (Tania-AHOD) and the Ad-hoc...
One common feature of almost all wireless protocols is the address structure for source and destination nodes within the wireless network. The paper aims at demonstrate and establish a multi-node Cluster-Head sensor Ad Hoc network, enable secure transfers on data on that network using encryption algorithm, propose a simple Ad Hoc protocol for joining and transferring data to a Cluster-Head facilitator,...
Wireless Sensor and Actuator Networks (WS&AN) currently face their actual deployment challenges. Simple point-to-point RF communications metrics remain focused on active modes peak power consumption and communication duty cycles. But, once RF links have to set themselves into mesh networks, complex interactions between RF nodes arise and various metrics must be taken into account. Here starts...
Two powerful trends in marine technology (autonomous assets and distributed sensing) are combining to create a dramatic pressure on the underwater (UW) communications industry to provide much less expensive modems with interoperable capability that can form ad-hoc networks. Currently, UW modem manufacturers use proprietary schemes that are mutually unintelligible, even if using the same frequency...
It is shown that Wireless Sensor Networks (WSNs) are capable of deployment in industrial processes which present particularly hostile RF environments. The techniques which have been developed have generic applicability, but in this work they are focused on the monitoring of grain storage. Determination of the environmental conditions in a grain silo is challenged by the dielectric properties of the...
The exponential growth in wireless services has resulted in an overly crowded spectrum. The current state of spectrum allocation indicates that almost all usable frequencies have already been occupied. This makes one pessimistic about the feasibility of integrating emerging wireless services such as large-scale sensor networks into the existing communication infrastructure. Cognitive radio is the...
The FlexNet-Waveform (FN-WF) is a new, highly-configurable MANET waveform for the international ground-based SDR arena, designed for the new FlexNet-One and FlexNet-Four hardware platforms. To ensure maximum compatibility and interoperability, the FN-WF assumes an IP-based platform with standard COTS protocols on the wired, Ethernet connections, while the wireless links utilize the best practices...
Bandwidth reservation in mobile wireless networks is a very challenging task due to the instability of radio channels, node mobility and lack of coordination between mobile nodes. Previously proposed reservation MAC protocols reserve a slot to each real-time source assuming that the source will use the reserved slot in each super-frame. Since different applications may have different bandwidth requirements,...
Bandwidth reservations established by a node should be reported to all its neighbors and any missed or unrecorded reservation may have negative impact on already established reservations. In this paper we propose a robust reservation protocol (RRP) to tackle these situations.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.