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Body sensors have gained increasing interest during the past several years. With more applications deployed, it is imperative to ensure the success of data analysis, which largely depends on data transmission reliability as well as the importance of samples received. Traditional approaches focus on improving data reliability through various schemes such as prioritization of MAC access. In this paper,...
Existing cooperative file downloading schemes have some blindness on the selection of collaborative nodes. In this paper we present a cooperative file downloading scheme with genetic algorithm to resolve the collaborative nodes selection problem, especially in the case that we cannot have a prior knowledge about the data rate and position of the mobile nodes. A simple and efficient extended on-demand...
In this work, a new routing algorithm which allows smart terminals to join the ad-hoc network at random times in order to carry out data transmission using Long Term Evolution (LTE) infra-structure has been developed and simulated by using OPNET Modeler. The routing scheme has been realized by clustering the terminals according to some predefined physical layer parameters and by utilizing Carrier...
Broadcasting is the primary procedure employed in Mobile ad hoc network for different kinds of functions like sending data and route discovery. Simple flooding is the direct method for broadcasting which can degrade the network performance. To resolve the broadcast storm issue which potentially leads to contention, collision and replicated messages, recently a new probabilistic approach has been proposed...
Mobile Ad Hoc network(MANET) is infrastructure-less, self-configurable and multi hop wireless network that has dynamic topology. Clustering in MANETs is a hierarchical aspect of dividing the network into various groups of nodes called Clusters, which leads to reduction in message overhead generated during topology maintenance. The proposed scheme provides efficient and improved cluster management...
Mobile Ad hoc Networks (MANETs) are the networks of mobile nodes which do not require any access points to communicate with each other within the radio range. Due to their applications in situations such as emergencies, crisis management, military and healthcare, message security is of paramount importance in mobile ad-hoc networks. The paper proceeds with a brief introduction of MANETs followed by...
Cellular Network Providers (CNP) provide users with wireless data access to meet the growing ubiquitous demand for the Internet. As users subscribe to a fixed data plan for a monthly flat fee, some users may exhaust their data allowance before the end of the billing cycle, while others underutilize their monthly quota. To take advantage of such underutilization, Khausik et. al. propose a mechanism...
Recently, there is a massive growth in the amount of wireless video traffics. To increase the network efficiency and cater to the needs of Quality of Experience (QoE), researchers propose hybrid MAC schemes, with multiple MAC protocols anchored in a single MAC layer. Different MAC protocols are selected for diverse users' requirements. However, the existing hybrid MAC mainly combines various MAC protocols...
The communication quality in multi-hop networks entirely depends on the selection of a multi-hop path from source to destination among the potential candidate paths. Finding a path with good throughput in multi hop MANETS (Mobile Ad Hoc Networks) is a critical job of QoS routing. Existing approaches finds the optimal path based on the best data rates among all links. However, other measures such as...
This paper presents a fuzzy logic stable-backbone-based multipath routing protocol (FLSBMRP) for MANET that provides a high-quality path for communication between nodes. The proposed protocol has two main phases. The first phase is the selection of candidate nodes using a fuzzy logic technique. The second phase is the construction of a routing backbone that establishes multiple paths between nodes...
Security and Quality are the two major aspects in MANETs to be addressed. Many articles have addressed these aspects independently. Very few have concentrated on the trade off between security and quality of MANETs, but lost their performance. The proposed method WBTQ (Weightage Based Trusted QoS Protocol) focuses on both the issues in parallel, it is providing secure environment by evaluating each...
Many multimedia applications over Mobile Ad hoc NETworks (MANETs) require Quality of Service (QoS) to meet real-time services. Accurate Available Bandwidth (AB) prediction and allocation of AB are important component for QoS provisioning which is affected by many factors such as latency, bandwidth, reliability, packet-loss, memory size, buffer cache, available capacity, and CPU speed. Media Access...
Many multimedia applications over Mobile Ad hoc NETworks (MANETs) require Quality of Service (QoS) to meet real-time services. Routing, an important component for QoS provisioning, affected by many factors such as limited resources, shared channel, unpredictable mobility, improper load balancing, and variation in signal strength. QoS based routing protocol must consider efficient usage of resources...
Vehicular Ad-hoc Networks (VANETs) are special kind of Mobile Ad-hoc Networks (MANETs). The distinctive characteristics of the VANETs include high speed of vehicular nodes and high variability in node density. Collecting data from VANETs is important to monitor, control and manage road traffic. However, efficient collection of the needed data is quite challenging due to vehicles mobility and the tremendous...
Scalable wireless geographically addressed messaging has been shown to enable applications critical to the core missions of field operation teams. In particular, the Scalable Ad hoc Geocast Protocol (SAGP) has been used to implement a scalable field common operating picture among smartphone class devices, as well as reliable multimedia messaging and distributed collaboration under challenging field...
Increasing number of mobile and wireless applications is threatened by the scarcity of frequency bands. Cognitive radio is a promising technology which would be hoped to solve the problem. Common Control Channel (CCC) plays an important role in these kind of networks and it also has its own issues. This paper considers the CCC problem in cognitive radio networks. A method is presented which increases...
Many multimedia applications over Mobile Ad hoc NETworks (MANETs) require Quality of Service (QoS) to meet real-time services. Resource prediction, resource allocation and quality prediction are important component for QoS provisioning which is affected by many factors such as latency, bandwidth, reliability, packet-loss, memory size, buffer cache, available capacity, and CPU speed. Media Access Control...
This paper studies a concurrent transmissions MAC (CT-MAC) protocol with power control and improves the best value of collision domain to make it more suitable for direct sequence ultra-wideband (DS-UWB) system. CT-MAC protocol realizes multi-channel transmission by identifying users with different spreading codes. In CT-MAC protocol, nodes of network calculate collision domain each time when they...
In Free Space Optical Mobile Ad Hoc Networks, there are only limited literature works on routing methodologies and these routing techniques lack the consideration of QoS metrics. In order to overcome these issues, in this paper, we propose QoS based directionality routing in FSO MANETs. When the source wants to transmit the data packet to destination, directional routing technique is utilized for...
As the development of unmanned aerial vehicle (UAV) communication in the residential and commercial areas, different from the traditional wireless sensor networks (WSNs), in this paper we consider a two-layer wireless networks for data gathering, one is sensor nodes to UAVs layer, the other one is UAVs to the outside layer. The sensor nodes sense data and transmit to UAVs, and then UAVs send data...
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