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Multipath routing has been widely used in wireless sensor networks to improve mainly the network performance by providing the load balancing capabilities. However, high correlated paths can throttle data transfer and can cancel the benefits of using multiple routes for data forwarding towards the sink. In this context, we propose a Fast Multipath Routing Protocol (FMRP), a query based multipath routing...
Vehicular networking is the new key context to offload the cellular network of the great amount of contents produced on the move. In this paper, we focus on the exploitation of vehicle-to-vehicle communications to deliver part of the data produced on board to the road side units (RSUs) deployed in the scenario, avoiding, as much as possible, the adoption of the cellular network. Specifically, we propose...
The spectrum sensing capability of cognitive radio (CR) enables a lot of opportunities to wireless networks, but also enables intelligent attacks by malicious players. One attack in this category is reactive jamming, in which the attacker senses the wireless spectrum, decodes parts of packets, and selectively interferes with packets. In so doing, an attacker can reduce energy expenditure and increase...
Spectrum and energy aware routing is very important in energy-constraint cognitive radio (CR) networks. On the other hand, it is crucial that CR users efficiently exchange data with each other before the appearance of licensed primary user (PU). To design a robust routing scheme for mobile CR ad hoc networks (CRANs), the constraints on residual energy of each CR user, reliability, and the protection...
In this paper, we proposed a novel opportunistic spectrum aware routing in cognitive radio wireless mesh network (CRWMN) which allows the CR users effectively occupy the spectrum band depends on the spectrum availability and also perform dynamically channel switching for performance optimization. In a CRWMN, primary hidden node (PHN) and primary exposed node (PEN) problems influence the performance...
In this paper, an energy-aware routing algorithm based on renewal process is proposed to choose highly competitive solutions for routing performance in cognitive radio ad hoc networks (CRANs). Moreover, we propose a new medium access scheme through spectrum forecast for secondary users to access the primary users' channels. Thereby, the proposed algorithm can allow selected routes corresponding to...
In ad-hoc networks where different routing protocols from the wired network are used, a multi-path routing has been paid attention for the purpose of load balancing. The multi-path routing considering inter-path interference proposed in the past can reduce the amount of control packets. However, this routing protocol has a problem that an obtained path is not always suitable one. In this paper, we...
In the recent years, Wireless Sensor Networks (WSNs) have become a great field of interest for scientific community. This kind of network provides a panoply of applications in different areas of human life. However WSNs must ensure the quality of service (QoS) to give the requested performance for the final user. Among different issues presented in the literature to provide high QoS, multipath routing...
In this paper, we consider the problem of finding the maximum routing throughput between any pair of nodes in an arbitrary multirate wireless mesh network (WMN) using multiple paths. Multipath routing is an efficient technique to maximize routing throughput in WMN, however maximizing multipath routing throughput is a NP-complete problem due to the shared medium for electromagnetic wave transmission...
Information security of industrial wireless network of Industrial Control System (ICS), which is at a stage of rapid development, has gradually become a hot research. Through the analysis of typical framework of industrial wireless network and factors of network node trust transmission, the corresponding relationship of encourage factor, trust value and current cooperation frequency is proposed in...
Wireless Mesh Networks (WMNs) are new emerging multi-hop wireless networks that offer low-cost high-bandwidth community wireless services. Much work has been done so far in order to enhance the performance of these networks. In this paper, by using the optimization framework provided in [1], we study the impact of using some advanced wireless communication techniques on the performance improvement...
In this paper, we study optimal transmission scheduling and congestion control in multi-hop device-to-device (D2D) communications underlaying cellular networks. The optimization is not only based on the cellular and D2D link qualities but it also takes the interference situation for each possible mode and the quality of service (QoS) requirements of each user into account. The problem is formulated...
In this paper, we propose a spectrum map aided routing protocol for a distributed cognitive radio network. We assume the presence of dedicated sensors that capture the spatio-temporal spectrum usage statistics to create the radio environment map. We exploit the map to find not only the best hops along a route but also the best available channel in terms of the expected performance. Through the use...
Underwater Wireless Sensor Networks (UWSNs) are emerging as a key enabling technology for a wide range of applications in the marine environment. Although there are significant efforts to find viable alternatives, acoustics are still the main technology in use for underwater communications. The use of acoustic transmissions in water, however, introduces several challenges such as variable and long...
In this paper, we propose an auction-based routing algorithm in a distributed cognitive radio network. The routing of packets is viewed as a market-based phenomenon where channels are traded between transmitters and receivers. Message routes are determined through a series of auctions between message senders and forwarders. The use of auction facilitates the determination of the cost of bandwidth...
In recent years, cooperative communication has attracted researchers' attention as it showed a good capability to increase network performance. On the other hand, a cooperative transmission may cause more interference. This can cause difficulty in achieving cooperative diversity gain in multi-flow and multi-hop networks. In this paper, we propose a novel interference aware-cooperative-routing metric...
Connectivity and robustness of ad-hoc cognitive radio network are the challenges faced by cognitive radio network due to moving nature of the channels, which are available for the communication to take place, among cognitive radio nodes. This challenge can be addressed by the concept of Clustering, which groups the neighboring nodes of a cognitive radio network. It helps the node to switch to other...
In networking, routing metrics provide a mechanism of predicting the cost of using a selected route; the most suited route is calculated using the routing protocol. The routing metric provides quantifiable values that can be used to judge the cost or efficiency of a specific route. This paper presents a comparison of the performance of the recently proposed IBETX routing metric over a reactive (AODV)...
In this paper, we address the problem of broadcast routing and scheduling of video streaming for delay-sensitive applications in backbone WMNs. Given a source node and a set of destinations, our task is to build a broadcast routing tree and compute an optimal transmission schedule such that the network throughput for the source to broadcast streaming data to all the destinations is maximized. The...
Machine-to-Machine (M2M) communications are gaining momentum due to the rapid deployment of smart devices with self-organizing capabilities, able to interact each other without the human operator support. Ultimately, M2M paradigm allows Machine-Type Communication Devices (MTCD) to exchange data in Peer-to-Peer (P2P) mode, avoiding the need of a core network handling end-to-end communication establishment...
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