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We investigate the impact of mobility on energy consumption in mobile Ad hoc networks in this paper. Considering a cell-partitioned model of a delay-tolerant mobile ad hoc network with Markovian mobility, we focus on that the communication only occurs in the same cell or the adjacent cell. In this model, we characterize the mobility which have an influence on energy consumption as the nodes' maximum...
Mobility pattern of an adhoc network affects its connectivity. Random Waypoint Mobility Model is widely followed by Mobile Adhoc Networks (MANET) in real world scenario. This mobility model is popular because it represents random motion of nodes which can move in any direction at any moment at a random speed. In this paper, the connectivity of a MANET, following Random Waypoint Mobility Model has...
The real-time applications deployed in MANETs are affected by the mobile node's power constraints and the real-time database service provider's system stability. In this paper, we aim to handle the time-constrained requests within their deadline despite of the mobile nodes limited energy. We propose a cross layer service selection protocol which ensures both timelines and energy efficiency. The proposed...
Flooding mechanism is widely used in ad hoc networks for its high reliability and coverage rate. However, flooding is inefficient for its large number of redundant messages and extortionate energy consumption. To support rapid route discovery without introducing too much route discovery traffic, an on-demand routing protocol for mobile wireless ad hoc networks, called Selection Forward Routing (SFR),...
Recently, the study of multicast routing attracts more attentions in MANET. Multicast Ad Hoc On-Demand Distance Vector (MAODV) protocol, which is multicast operation of the Ad hoc On-Demand Distance Vector (AODV) routing protocol, enables dynamic, self-starting, multihop routing between participating mobile nodes wishing to join or participate in a multicast group within an Ad Hoc network. Through...
Wireless communication is becoming the dominant form of communication and ad hoc wireless connections are posed to play a role in disaster area networks. However, research efforts on wireless ad hoc communication protocols do not pay enough attention to measurable and reproducible indications of the mobile footprint including power consumption. Protocols and applications are initially designed and...
In this paper we consider the optimization of energy consumption in multicat routing in MANET. To avoid the generation of loops which occurs in the IMBM algorithm, combining the characteristics of MANET and the advantages of the multicast routing protocol based on tree structure, we propose a multicast routing algorithm that minimizes the energy consumption. By the algorithm we construct a broadcast...
IEEE 802.11 specifies a Power Saving Mode (PSM) in order to save the energy consumptions of mobile hosts. Following the standard of PSM, a number of studies [1–4] further discussed the wakeup/sleep scheduling of beacon intervals based on Quorum systems so that any communication pair of hosts has common awake intervals for data exchange. However, most of them did not take into consideration the fact...
How to measure and maintain connectivity is an important issue in ad hoc networks. A special case of such network is Wireless Sensor Networks (WSN), which are often deployed in harsh environments and also susceptible to a number of problems that may negatively affect the connectivity among the nodes. An additional factor that increases the cost of connectivity maintenance in ad hoc networks is when...
As mobile devices have become more powerful and ubiquitous in our daily life, sharing content objects among mobile platforms has become increasingly popular. Without the help of server infrastructures, clients usually form a mobile peer-to-peer (P2P) system as an ad-hoc network, and discover content objects by flooding query to neighboring peers. Such a flooding-based query method consumes communication...
Recent technological advancements have led to the popularity of mobile devices, which can dynamically form wireless networks. Unfortunately, mobile devices are vulnerable to failure because of various factors, including physical damage due to deployment in harsh environmental conditions, limited energy, and malicious attacks. Detecting node failure is an important problem that has been widely studied;...
In recent years, improving network model and enhancing the network performance have received people's attention gradually. The peer-to-peer network model has been used in Ad Hoc networks to increase the data output rate, to reduce the transmission power, to increase network capacity and the better load balance. However, the network analysis topology computation, the routing and the energy supply have...
Energy efficient Routing is one of the key issues in MANETs due to their highly dynamic topology and limited battery power at the nodes. In particular identifying energy efficient routing is the most important design criterion in static and dynamic ad-hoc networks. Power failure of a mobile node not only affects the node itself but also reduces the overall network lifetime. The goal of this paper...
In this paper we introduce mechanisms for automated mapping of urban areas that provide a virtual sensor abstraction to the applications. We envision a participatory system that exploits widely available devices as mobile phones to cooperatively read environmental conditions as air quality or noise pollution, and map these measurements to stationary virtual sensors. We propose spatial and temporal...
Energy consumption in general and interference in particular are among the most critical issues in wireless networks. In this paper we present the E-BUM calculus, a Energy-aware calculus for Broadcast, Unicast and Multicast communications in wireless ad hoc networks. We formalize the notions of sender- and receiver-centered interference and provide efficient proof techniques for verifying the absence...
The rapid evolution of telecoms industry is accompanied by a huge increase of energy consumption of mobile networks, which forces the operators to exploit the potential of new techniques to save energy. In this paper, we propose a novel deployment strategy which is able to adapt itself to the spatial variation of the traffic by enhancing the cell radius in the low traffic areas, while the target quality...
A mobile ad hoc network (MANET) is characterized by its dynamic and decentralized topology, which allows exchanging information between mobile nodes without any pre-existing telecommunications infrastructure. However, mobile devices have constrained resources like memory, energy, bandwidth, etc., that must be optimally used in situations where a MANET is needed. For that reason, we propose a greener...
This paper proposes an Energy Efficient Clustering Scheme for mobile ad hoc networks. In the initial clustering stage, a node's residual energy, nearby topology, relative location and relative mobility are used for determining whether the node is suitable for being a cluster head. In the cluster maintaining stage, a strategy called Distance Estimation Broadcasting is designed to help a cluster member...
In this work, we address the energy efficiency issue for time-sensitive multiplayers games in MANET environment. We propose a simple, yet efficient, client side packets concatenation solution, which exploit the information provided by a delay version of the OLSR routing protocol. Using gameplay objective metrics and extensive experimentations we show that our proposal can significantly increase the...
An energy-efficient grid based geographic routing scheme for wireless ad hoc networks is presented in this paper. The proposal presented here does not rely on location information. The dependency on global location information limits location aided flooding's usefulness. In addition, geographic proximity does not always lead to network connectivity. The traditional location aided flooding make very...
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