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A MANET or Mobile Ad-Hoc Network is decentralized in nature and it is basically a collection of heterogeneous mobile nodes which are autonomous and can communicate among themselves over the wireless link. In this infrastructure-less network, all the nodes dynamically route the packets by themselves with help of some protocols for sending or receiving the packet information. The ZRP or Zone Routing...
Internet connection is essential for daily life, however not all areas are covered by Internet access due to historical reasons. For example, with 3.7 million daily passengers, London underground system has no WiFi or cellular signal provided during travelling due to legacy reasons. Deploy new access infrastructure need to consider the integrating problem with the current environment, also bring a...
In recent years, unmanned aerial vehicle(UAV) has been developing rapidly which is also widely concerned in the military field, but the research on the communication services for the battlefield is seriously lack of development. Multi-UAV cooperative applications have better performance than single UAV, but the cooperative communication problems between UAVs need to be solved urgently. Therefore,...
Mobile users in an urban environment access content on the internet from different locations. It is challenging for the current service providers to cope with the increasing content demand from a large number of collocated mobile users. In-network caching to offload content at nodes closer to users alleviate the issue, though efficient cache management is required to find out who should cache what,...
Mobile traffic is growing exponentially, with video expected to reach 75% of the total network traffic by 2020. The dense deployment of small cell networks (SCN) in outdoor urban areas has been widely accepted as a solution to the capacity and coverage problems on access networks. However, backhauling the traffic to the core network is one of the major challenges faced by network operators. Millimeter...
Over the past few years, Mobile Ad hoc net-works(MANETs) have gained importance in mission critical environments. Software defined radios(SDRs) have provided MANETs a platform for using Narrowband networking wave-form(NBNW) for concurrent voice and data transmissions. Traditional TDMA MAC protocols are not appropriate for such applications. In this paper we have proposed a distributed TDMA slot assignment...
In spectrum sharing networks with relay cooperation, primary users can benefit from the assistance of secondary users while secondary users accessing the primary bandwidth to transmit their signals. Reasonable relay selection strategy can improve the performances of both primary and secondary users in terms of higher transmission data rate and lower outage probability, and at the same time, frequent...
The message delivery ratio of mobile opportunistic networks strongly depends on the transmission time, which is closely related either to the mobility of users and to the communication properties of the mobile devices. A larger radio transmission range allows longer contact durations, improving the message dissemination. Furthermore, user mobility is a crucial factor to be considered, especially when...
Road Side Units (RSUs)-based data communication (V2I) is an increasingly popular technique in vehicular networks to alleviate the frequent vehicle-to-vehicle (V2V) communication problem. On-demand broadcasting is a scalable approach for supporting large clients with dynamic demands. However, the performance of the traditional on-demand broadcast can be improved significantly with the incorporation...
MANETS are heterogeneous, self configuring networks in which topology changes very frequently due to the mobility of nodes. Mobile nature of wireless nodes requires periodic updation of routing information and updating of other parameters. This paper majorly concentrates on the idea of discovering the Quality of service (QoS) parameters in Mobile Ad hoc Networks (MANETS) by providing an hybrid approach...
Stream Control Transmission Protocol (SCTP) is one of the TCP/IP protocol stack transport protocol. In this paper we aim for improving the video transmission rates by significantly enhancing the SCTP protocol frame structures. We make use of SCTP multi-streaming feature for determining various frame formats that defines the effective transmission. The proposed unidirectional delay technique is used...
Mobile Ad Hoc Networks (MANETs) merge wireless communication with higher node mobility. Restricted wireless communication range, and node mobility requires cooperation with all others to offer networking, and with the network changing vigorously, needs are to be continually met. Routing protocols allows MANET operation. To improve the performance of the routing, various constraints such as bandwidth...
Ad hoc network is a networking concept, which emerged in the beginning of the 1990's. Also known as Peer to Peer (P2P) network, these types of networks have facilitated connections among computers. Currently, smartphones are connected to each other wirelessly to share information through hotspot ad hoc feature. These types of connections have led to many threats and attacks. There have been limited...
The multi-copy routing paradigm in Delay Tolerant Networks (DTNs) implies that increasing contact bandwidth leads to a decrease in data delivery delay and an improvement in throughput. With Hybrid Radio Frequency/Free Space Optical (RF/FSO) PHY layers, the high data rate FSO links can be used to increase the contact bandwidth. However, due to the highly directional nature of FSO links, broadcasting...
In disaster affected regions, communication and coordination among different authorities like volunteers, army and government personals are extremely important for smooth rescue operations. A major problem faced by the rescue workers during post disaster scenario is the frequent communication disruption from the conventional networks (like cellular), and therefore information collection and coordination...
Bluetooth is a low-energy consumption communication technology and a prospective communication method for emergency situations. A Classic Bluetooth communication network has been proposed and designed to establish an emergency mobile ad hoc network (hereinafter referred to as Classic Bluetooth MANETs). In Classic Bluetooth MANETs, a terminal can cause an excess of connection retries and connection...
The paper examines mobile TDMA-based ad hoc networks exposed to follower jamming. The focus is to examine how the terrain and network protocols influence jamming resistance. To study the network properties under follower jamming, network simulations are performed. The investigated networks in a flat terrain become more jammed than the corresponding networks in a hilly terrain. The packet delivery...
In this work, we propose a novel quality link metric; Bandwidth adjusted Inverse ETX (BIETX) for Static Wireless Multi-hop Networks (SWMhNs). The proposed metric considers two path selection parameters into account i.e., packet delivery ratio and link capacity. For computing packet delivery ratios in BIETX, the mechanism of Expected Transmission Count (ETX) is adopted. On the other hand, we take two...
In Ad Hoc technology, a mobile node is characterized by a limited battery power. Therefore, the energy consumption becomes an important challenge that must be taken into account when designing a new Ad Hoc routing protocol. An efficient routing protocol should also consider a high level of Quality of Service (QoS) such as the end-to-end delay and the bandwidth as the applications do not have the same...
Mobile Ad-hoc Networks (MANETs) can be setup uniquely for a particular purpose. MANETS are mobile, free to move in any direction. They use wireless connection such as Wi-Fi or any other standard medium for connecting to other networks. Applications of MANETs are improving day by day, somaintaining the bandwidth efficiency is very important. This can be done by minimizing the energy consumption, distributing...
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