Introduction Advances made in the field of Micro Electro Mechanical Systems (MEMS) and wireless communication has lead to the widespread development of wireless sensor networks. By making use of these advances, WSN provides low cost solution to a number of real world challenges. A WSN consists of hundreds or thousands of sensor nodes that perform a certain task. Having large number of sensor nodes allows for a wider geographic coverage, thus increasing accuracy. Each sensing node has the...
The current assignment of wireless spectrum is based on a static assignment of spectrum to the license users. The license users do not utilize the spectrum all the time. In this way large amount of spectrum is not used efficiently and goes unused. The spectrum is a very limited and the inefficiency in the spectrum usage gives birth to a new communication paradigm i.e. to access the limited spectrum opportunistically. This is referred to as Next Generation Networks and, Cognitive Radio (CR)...
With the evolution of wireless technology, the mobility computing has been dramatically increased. WLAN has been adopted in very effective manner, due to the advantages that are noticed in the technology. For a network designer the challenging tasks have been raised at the same time, invoking the wireless technology. It is important to learn the key concepts that will influence the network performance by network engineer, before the practical network installation, some guiding steps and...
Information Security threats are on the rise, and although several products and technologies have been developed to mitigate these threats, the long-proven and trusted hardware firewall is still the heart of security for any network. Firewall administrators and designers are therefore in high demand.Firewall Architecture:In our scenario we intend to use Cisco ASA 5505 device as a Firewall, this device also support VPN connection based on IPSEC. All transactions between VPN Client inside of...
Introduction My name is Zar Yar Shi and I am attending International Diploma in Computer Studies (IDCS) at Myanma Computer Company Ltd. I am taking 4 subjects in this term and Java is one of the subjects. "Game Programming" is the name of assignment title of Java.The objective of this assignment is to attempt programming some games using the facilities of Java and to gain experience by starting with a very simple idea and developing the resulting program into a more complex idea. In...
This paper deals with the wireless personal area networks. It works in small area for delivering multimedia traffic. The IEEE 802.15.3 is the emerging standard for WPAN. This standard is designed to provide low complexity, low cost and low power-consumption for personal area networks that manage multimedia traffic, video and audio between different devices in a small area environment. In this, system aims to maximize the performance of the WPAN in terms of throughput, considering multimedia...
Abstract- In centralized scheduling mode Multihop Relay Base Station (MR-BS) generates Downlink-/Uplink-MAP (DL-/UL-MAP) on behalf of all subordinate Relay Stations (RS) and Mobile Stations (MS) but in distributed scheduling mode each RS can generate DL-/UL-MAP to allocate resources to its subordinate RSs (over relay link) and MSs (over access link), that results in DL-/UL-MAP computing load reduction at MR-BS. The MR-BS is like a BS which supports multihop relay transmission. In this paper the...
In wireless sensor networks, there are many Prevention techniques are used in the WSN for false data injection and provable security use in WSN. First we define the false data injection in wireless sensor networks. And we can define many techniques in prevention techniques for data injection.5.1.1 False Data Injection in wireless sensor Networks:-Sensors are usually deployed in unattended or even hostile environments, and an adversary may Capture or compromise sensor nodes. Node compromise...
Modern world is blessed of technology. Technology makes life simple, comfortable and faster. The latest of this technology is 3G, better known as 3rd generation technology. A standard of mobile telecommunications includes GSM EDGE, UMTS, and CDMA2000 as well as DECT and WiMAX all are 3G supported. Because of 3G technology people can access faster internet at home at abroad. From any where we can access internet and check our important personal and business email. Business ma n can know the...
A database brings convenient to today's working area such as large business company. The main purpose of a database is just similar to handling and keep large amount of files and documents in a large cabinet. However this method takes a large space and will be complicated to control and organized. This is why a database is introduced to keep these data organized to allow users to access, retrieve, and use of the data without any hassle. DBMS or Database Management System is software that used...