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The Internet of Things (IoT) has emerged as the key networking paradigm for supporting the connectivity of massively distributed objects and numerous simultaneous applications. The constrained application protocol (CoAP) is designed to meet the requirements for IoT data transmission among constrained nodes. The lean design of CoAP enables it to additionally meet the needs of the data transmission...
Current Internet traffic is carried mainly by the Transmission Control Protocol (TCP), and the performance of the Internet depends strongly on how well TCP works. Detecting and mitigating the congestion is one of the main tasks of this protocol, in fact, different TCP versions are defined by their congestion control algorithm. Also, Active Queue Management (AQM) algorithms share the same goal of congestion...
The topology of a Mobile Ad hoc Network (MANET) has substantial influence on its performance in that the transmission range and battery power of the nodes are not uniform in nature. The topology is susceptible to node and link failures which lead to network partitioning. Topology reconfiguration aims to recover from the failure and maintain the connectivity. Existing topology reconfiguration algorithms...
Routing packets towards their destinations is a key task in mobile ad-hoc networks due to nodal mobility and dynamic topology of the network. Many well performing routing protocols for MANETs are proposed and implemented by considering these inherent properties. ad-hoc On-demand Distance Vector (AODV) is one such protocol which performs better among similar MANET routing protocols. AODV chooses a...
A Mobile Ad hoc Network is a self-organized network. The nodes which are within its radio range can have a direct communication if not it use an intermediate node for transmitting data. In MANET the nodes are wireless and fully distributed but they do not have any fixed infrastructure like base station or access points. MANET is a dynamic topology that is in this type of network the nodes will move...
The limited capacity of batteries of nodes imposes a constraint on ad hoc networks. Thus, energy efficiency is critical to prolong the network lifetime. Network traffic should be routed such that the energy consumption is minimized. In this paper, we discuss the energy-efficient multicast problem in ad hoc networks with the respect of delay. Multicast routing deals with finding a multicast tree, which...
Future of mobile adhoc network (MANET) is predicted grow due to the capability of network manage independently. One of important role in this network is routing protocols. A number of research about algorithm to find the best path in transmit of data has been done. Some routing protocol used in MANET, such as AODV, DSR and DSDV. This paper presents about investigation result of AODV, DSR and DSDV...
Wearable sensors are designed to monitor the individual user's activities or the social behaviors within a group. Due to the nature of their applications, the wireless transmission of the sensory data are subject to extremely stringent energy constraints. Also, due to user mobility, the network topology is frequently changing. Therefore, the design of efficient communication protocols for wearable...
Security problem in MANET has been prevailing even after several researches by the various authors. Since application of security mechanism affects the system performance very much therefore there is always scope for further research in this area. Another major cause is fast technology growth in the area of MANET. Recent researches are focusing on another mechanism of security which involves trust...
Group team communication serving for collaboration-work of special members, is an important application of MANET. In which, multicast protocol is a key technique to the group team application, which must guarantee the performance requirements: adaptable to the dynamic change of network topology, timeliness, minimizing routing overhead etc. This paper focuses on the improvement of MAODV applied to...
A Mobile Ad-hoc NETwork (MANET) is a wireless network set up temporarily without a wired infrastructure (routers, switches, servers, cables, access points, etc.). The wireless nodes in a MANET may move around and each one of them may need to forward packets for other components in the network. Several routing protocols such as DSR, AODV and DSDV have been proposed to facilitate communication in such...
Mobile ad hoc network (MANET) is a multi-hop temporary autonomous system of mobile nodes with wireless transmitters and receivers without the aid of pre-established network infrastructure. With the development of network and demand of users, QoS has become one of the focus issues. A new routing protocol is proposed in this paper, which can provide QoS guarantee. In the route discovery phase, it finds...
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