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This paper reviews different wireless enterprise architecture standards to enable public safety voice communication interoperability using two-way radio. Different consoles and other means of third party between receiver and transmitter were used. The paper makes individual brief study to those solutions to compare between then, their optimal working areas and tabulates the results.
This paper implemented the web-based GIS Hotels Business Tourism Site in Khartoum state. The motivation as well as the problem statement is the lack of spatial data and geographical informations of Business Hotels tourism in Khartoum state, hence, lead to the unavailability of web based Business Hotels tourism, also the lack of research papers in this field. One of important goal is the way of supporting...
The DVB-T2 terrestrial television standard is becoming increasingly important, and have been extensively studied and developed to provide many types of services with higher spectral efficiency and better performance. The Physical Layer Pipes in DVB-S2 are logical channels carrying one or more services with modulation scheme and robustness. The main changes are found in the physical layer where DVB-T2...
Object tracking in real time is one of the most important topics in the field of computer Vision. The work undertaken in this dissertation is mainly focused on development of a reliable and robust real time tracking system that can track the object of interest in the video acquired from a stationary or moving camera. The proposed algorithm is a real time algorithm that operates in 25 frames per second...
In this paper we evaluate Enhanced Hybrid Wireless Mesh Protocol (E-HWMP), an enhanced version of HWMP based on IEEE802.11p and IEEE802.11s standards, especially created for Vehicular Ad-hoc Networks (VANETs). An enhanced gateway selection algorithm for multi-hop relay in VANET- LTE integration network is proposed. In the proposed algorithm the gateway selection is implemented using the E-HWMP protocol...
For efficient network applications, it's necessary to build security mechanisms for a secure communication. End-to-end security plays a crucial role for the communication in the network, to provide the confidentiality, the authentication and mostly the prevention from DOS attacks at high level. The main downside of the key generation and key exchange are that, the attackers might access the transmitted...
This is the era of modern life. The era of email, text messages, Facebook and Twitter, careers Crisis news coming from everywhere at any time. We (human) are assaulted with facts, pseudo facts, jibber-jabber, and rumour all posing as information. We text while we're walking across the street, catch up on email while standing in a queue. When people think they're multitasking, they're actually just...
Image Histogram is useful in wide range of applications, it shows the image intensity distribution which is used in many image processing techniques. The processing time is very critical in real time applications, so the optimized and robust techniques are preferred. This paper is discussing a simple method for calculating histogram of the image with sampled Histogram which is similar to the histogram...
the wireless sensor network technology emerged in the late 1990s, since then it has spread across a wide range of potential applications to industry, science, transportation, civil infrastructure, and security. Main research efforts in the wireless sensor network field focused on achieving the desired performance requirements and reducing the energy consumption to the least possible. This survey paper...
In this paper, we introduce dual-band micro strip patch antenna design for WiMax and WiFi implementation by mean of 3.5 GHz and 5.2 GHz central frequencies, respectively. The antenna system is been designed anchored in adds C-slot design on the patch and two parallel slit on the ground plane. The favor of this technique is that it puts forward low profile, high gain and wide bandwidth for the entire...
Wireless telecommunication technologies are flattering the foremost structure of information transmission, and considered one of the majority active research area. Ad hoc Networks for vehicles communications (VANET) emerged as a detachment of the Mobile Ad hoc Network (MANET), but they are at variance from MANET by their architecture, challenges, characteristics and applications. VANET believed to...
This paper discusses the cost functions of the three multicast schemes Bi-directional Tunneling, Remote Subscription and Agent Based. To developed from a probability model of engagement between any mobile network nodes in multicast group to a home agent. So the performance parameters required taken under continuous session duration constraints, taken in account the effects of nesting topology of Network...
Femtocells home base station, which are low power cellular base station that operate in licensed spectrum, installed on the subscriber's premises to provide cellular services within home, residences, apartment complexes, business offices and outdoor hotspot scenarios connected with the internet and cellular operator networks via digital subscriber line (DSL) router or cable modem, to improve coverage,...
Heterogeneous network tends to use multiple types of wireless access networks. In heterogeneous wireless networks, different wireless access technologies are integrated to complement each other in terms of coverage area, mobility support, bandwidth, and price. In this paper, dual radios, fixed-WiMAX (i.e. 802.16d) at 3.5 GHz and WLAN at 2.4 GHz are used. Dual band rectangular microstrip antenna with...
Femtocell is a small sized indoor basestation to increase the coverage and capacity. Femtocell is connected through broadband backhual to the IEEE1588 to synchronize and manage the network. Due to limited/poor connectivity femtocell suffers by frequency misallignment and clock differencs. To overcome this problem MS-Assisted Receiver-Receiver Time Synchronization Strategy has been proposed. But this...
Heterogeneous Networks (HetNet) are multi-mode, multi-layer, and multi-band structured and utilize cells of varying sizes. The goal behind the implementation of HetNets involves incrementing the capacity of the established network, modifying spectrum use, lowering the capital and operating costs, and offering steady user-based experience of network architecture. However, these random small cell deployments...
In order to support mobile network, a management mechanism of Network Mobility Basic Support Protocol (NEMO BSP) has been standardized by Information Engineering Task Force (IETF). NEMO BSP is an extension of Mobile IPv6 (MIPv6) and inherits all the shortcomings like higher handoff latency, packet loss etc. As Network Mobility (NEMO) is engaged to manage the movement of Mobile Router (MR) and it's...
Integration of Vehicular Ad-hoc Network (VANET) and Universal Mobile Telecommunication System (UMTS) is a promising architecture for future machine-to-machine applications. This integration helps the vehicles have steady Internet connection through UMTS network and at the same time can communicate with other vehicles. However, the dead spot areas and unsuccessfully handoff processes due to the high...
In this paper we design a new protocol for confidentiality which can be applied in three scenarios. The first scenario does not need too many database modifications. We found that this protocol can offer a confident method for registration and all other messages between master/mode II devices and TV white space database (WSDB). The second scenario is tried to overcome of the delay of the first scenario...
In order for the mobile networks to stay connected to the Internet, Network Mobility (NEMO) is involved with the management of the different types of movements by mobile routers during rapid changes of the Point of Attachment (PoA). Accordingly to achieve seamless handoff with lower delay and packet loss in NEMO environment, it is very important to get better performance of mobility management protocol...
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