Distributed Multi-weight Data-gathering and Aggregation Protocol in Fleet Wireless Sensor Networks: Optimal and Heuristic Algorithms

Abstract

Abstract:Clustering Algorithm is a kind of key technique used to reduce energy consumption, which can increase network scalability and lifetime. The main goal of this research is concerning protocols to contain in-motion sensor nodes in large-scale topologies, and constitute a fleet wireless sensor network which can assistant in-flight localization and alignment for carrier-based aircraft. In this paper, we abstract network model according to specific conditions of F-WSN, and select performance indicators to evaluate it. A distributed multiple-weight data gathering and aggregation protocol (DMDG) is proposed, which contains all-sided active clustering scheme and realizes long-range realtime communication by tacical data link under a TDMA/CSMA channel sharing mechanism. An analytical paradigm facilitating the most appropriate choice of the next relay is proposed. Experimental results have shown that DMDG scheme can balance the energy consumption and extend the network lifetime notably, outperform LEACH, PEACH, and DEEC in terms of network lifetime and coverage rate, especially in sparse node density or anisotropic topologies.

Dynamic Cooperative MAC Protocol for Navigation Carrier Ad Hoc Networks: A DiffServ-Based Approach

“…In our research, we are devoted to putting forward a network-aware solution for a bottleneck of modern navigation technology, which prevents it from reaching a higher level [1][2][3]. More specifically, the navigation precision of each navigation technology is closely related to the self-contained degree of the navigation system; on one hand, we can upgrade its integrity to enhance the navigation precision, e.g., by augmenting other navigation equipment or replacing it with a high precision navigation system, which will lead to additional economic investment and physical load; on the other hand, we can simplify the complexity of the navigation equipment to alleviate the burdens above, e.g., by the reduction of navigation equipment or its replacement with a low-cost navigation system, although its navigation capacity will be degraded accordingly.…”

“…More specifically, the navigation precision of each navigation technology is closely related to the self-contained degree of the navigation system; on one hand, we can upgrade its integrity to enhance the navigation precision, e.g., by augmenting other navigation equipment or replacing it with a high precision navigation system, which will lead to additional economic investment and physical load; on the other hand, we can simplify the complexity of the navigation equipment to alleviate the burdens above, e.g., by the reduction of navigation equipment or its replacement with a low-cost navigation system, although its navigation capacity will be degraded accordingly. In references [2][3][4], we proposed a navigation-oriented network-navigation carrier ad hoc networks (NC-NET)-to solve the localization, target tracking, and multimedia data exchange problems through a network approach. The proposed NC-NET, which is essentially an ad hoc network between navigation carriers (NCs), is surveyed as a new network family.…”

“…The proposed NC-NET, which is essentially an ad hoc network between navigation carriers (NCs), is surveyed as a new network family. Moreover, some of the protocols and mechanisms have already been investigated, including (i) the protocol framework, and the models in the physical layer [2,3]; (ii) a distributed multi-weight data-gathering and aggregation protocol for cluster topology, i.e., DMDG protocol [2]; (iii) a grid-based cooperative QoS routing protocol with fading memory optimization, i.e., FMCQR protocol [3]; and (iv) a network-based localization mechanism [4]. As part of a series of research work, the main objective of this paper is to develop a MAC protocol with full account of the features of NC-NET.…”

“…For simplicity, but without loss of generality, an essential NC-NET is discussed at length in the research, in which the open issues surrounding general-purpose MAC protocols are analyzed in detail. However, there are also several common points between NC-NET and the previous ad hoc network, e.g., decentralization, infrastructure-less, and self-configuration [2,3,5]. Moreover, several illustrations of NC-NET adopt the general-purpose technologies of ad hoc networks, such as TDMA and CSMA/CA.…”

A Localization and In-flight Alignment Protocol for Airborne SINS Based on Flight-vehicle Wireless Sensor Networks

“…With the assistance of tactical data link (Link-16 or TTNT), the network can provide precise navigation information including position (or relative position), velocity, heading angle, and system clock. A fleet wireless sensor network is designed in the preliminary job with a integrated protocol architectures (DMDG) whose performance is certified by extensive simulation in literature [6,7]. The finial purpose of this paper is to put forward a localization and in-flight alignment algorithm for application layer which can propose high quality of precision and robustness with time-relay delay error and in-motion vehicles.…”