Wireless network

in smaller sensor devices with ubiquitous sensing and monitoring capabilities, Wireless Sensor Networks (WSN) are evolving as one of the most significant technologies of 21st century (Ruiz-Garcia, Lunadei, Barreiro, & Robla, 2009). Though wired networks provide more stable and reliable communication, wireless networking does provide more advantages with connectivity without being tethered. WSN with dense wireless networks of small, low cost sensors for collecting and disseminating environment data

Wireless local area networks (WLANs) are quickly evolving in computer communication networks (Yue & Matsumoto, 2002). They are being developed to deliver users in restricted geographical areas the ability to use a high bandwidth. WLANs are used in wireless offices, businesses, college campuses, and other areas (Yue & Matsumoto, 2002). The use of wireless network interfaces allows mobile devices to connect to the internet using the Ethernet. Numerous contention-based protocols that could be modified

Current the new arrival of generation of wires sensor network has been provided for several applications because of modern period which brought the integration of the smallest physical sensors, embedded of small controllers called microcontrollers and radio interfaces on one and only single chip fabrication. All of these functions brought a wide range of application for sensor networks. The integration into wearable wires body area network has been incorporated with a big number of physiological

A Wireless Sensor Network can be composed of large number of tiny of sensor nodes spread in a wide area and communicating with each other either directly or through routing mechanisms to the other nodes. One or more of the nodes are the base station with uninterrupted battery source than the other nodes. Since the devices in WSN are often tiny devices with small form factor the computational power of these devices is usually small because there will not support large amount of hardware. Furthermore

A Wireless Sensor Network usually is formed by numerous wireless sensor devices. Routing is an important mechanism which will help the data to get forwarded to the right destination. Internet Protocol is an important protocol which helps in routing process. Generally the nodes in a Wireless Sensor Network are integrated and routing using IP version 4 is difficult as the address space is limited. IP version 4 uses 32 bit addressing mechanism which is not sufficient to complete the routing process

amount of energy as each node is assigned with various task [20] such as SEP[21], DEEC[22]. In this paper, we propose and analyze a novel cluster head selection scheme based on the deployment of nodes in different regions for heterogeneous wireless sensor networks (HWSNs) which is named as RBETSSEP. In RBETSSEP, the node’s qualification for being a CH is evaluated as per the residual energy of a node and distance to a base station (BS). The sensing area is divided into nine regions and these are dedicated

The MAC Protocols for wireless sensor networks are divided into two categories: 1. Contention-based: The Contention based protocols are used to avoid the hidden terminal problem. But the problems with these are idle listening, collision avoidance, and overhearing. IEEE 802.11, S-MAC are examples of this category 2. Reservation–based: TDMA protocols are based on reservation and scheduling. They have less energy-consumption compared to Contention based Protocols. Bluetooth is an example of TDMA based

INTRODUCTION A network is collection of devices which are connected to each other for data exchange. Devices are linked with each other in order to share resources, exchange files or allow electronic communications. These are interconnected for sharing data quickly and easily. A network can be divided into wired and wireless networks. In wireless networks, there is no physical connection between devices or computers as there are some sort of radio frequencies in air to transmit and receive data instead

Wireless Area Networks Wireless technology has become an increasingly crucial part of today's world. From health care and retail to academia across the world, wireless systems are improving the rate and ease with which data is sent and received. Two specific examples of the wireless technology used today personally and professionally are local area networks (LAN) and personal area networks (PAN). A wireless local area network, or LAN is a flexible data communications

Wireless Sensor and Actor Networks (WSAN) have attracted a lot of interest in recent years. Their potential applications include search-and-rescue, forest fire detection and containment, battlefield reconnaissance, under-water surveillance, etc. In WSAN, sensors which are small, densely-populated, and power-constrained devices probe their surroundings and send the collected data to more capable nodes (actors) for processing and putting forward an appropriate response [1]. For example, sensors can