Wireless LAN

Most waterproof cell phone cases are designed in a way that encloses your phone completely. However, some cases are well customized to allow you to continue using your phone while it’s in the case. Such cases are only meant to protect the phone and offer a strong grip without interfering with its accessibility. While others are simply slip-and-slide utilities, others are further advanced with extra features. These include arm bands, which make it safer for outdoor activities such as water sports…

Chapter 5 Proximity Sensor 5.1 Introduction A proximity sensors is the sensor able to detect the presence of nearby objects without any physical contact. A proximity sensors often emits an electromagnetic field or a beam of electromagnetic radiation, and looks for changes in the field or return signal. The object being sensed is often referred to as the proximity sensor's target. Different proximity sensor target demand different sensor. For examples a capacitive or photoelectric sensors…

External Environment Analysis Analyzing the external environment of Verizon, requires the use of PESTEL and Porter’s five forces model. Threat of Entry: Low threat. New entrants don’t present a problem to Verizon. Establishing a wireless company is expensive, it requires a substantial amount of capital, work and resources, and additionally it requires to comply with government regulations that could take a high number of years to comply with, something that dissuades new comers. Power of…

Do you know what an RFID tag does? An RFID tag is a small microchip placed into things like: supermarket items(known as the barcode), inside people, pets, computers, phones, etc. to track them down, read their data and transfer files to and from. An RFID tag is a Radio frequency identification device(Tag You're It 72). It contains radio frequency which means anyone with an RFID tag reader can receive radio waves and see whatever the RFID tag contains. Even Though RFID’s track kids and pets that…

crucial to understand the limit of certain wireless protocols and how it works in different situations. The most recent Wi-Fi protocol that this report will focus on is, 802.11ac, also known to be the next generation for wireless networks to be equipped with new technologies that could provide faster speeds, capacity, and range. The predecessor, 802.11n, wireless protocol had lower limitation of its full potential to keep the ever growing need of today’s wireless demand. 802.11n lacked the…

Vertical Handover Abstract: In this era of technology, next generation wireless networks are very popular that allow users to connect to different radio access technologies such as UTMS, WiMax, GSM, etc. In such heterogeneous environment Vertical Handover is executed thus a user can switch among different radio access networks that makes whole process so complex. Vertical Handover algorithms require many parameters such as interference power, QoS, network conditions, terminal capabilities,…

1. INTRODUCTION Figure: Wi-Fi logo Wi-Fi stands for wireless fidelity. Wi-Fi is the wireless network that used to connect the internet without wires. It’s based upon the radio technology. Many computers can be connected to each other through Wi-Fi and we can share files data and many of the other things through Wi-Fi. A Wi-Fi network operated just like a wired network, but without the restriction of wires, it not only enable user to share the data but it also provide easy connection to the…

NFC and RFID Radio Frequency Identification (RFID) is a wireless use of electromagnetic fields to transfer data, aiming to automatically identifying and tracking tags attached to objects. Near Field Communication (NFC) is one specific type of RFID, and shares many physical properties with it. The differences between NFC and RFID is that many extra properties were developed for NFC to enable secure mobile payments. 1.1. Radio Frequency Identification (RFID) RFID was first patented in…

The advantage of spread spectrum is that it can be many users use the same bandwidth at the same time without interfering with each other. However, this is not good for a few number of users because it is not economic. Spread spectrum is a form of wireless communications. The frequency of the transmitted signal is varied purposely to get a higher bandwidth. Spread spectrum uses demodulate, wideband, intercept and some signal that is hard to detect which is noise-like signal. Other than that,…

Review: Photive BTH3 Over-The-Ear Wireless Bluetooth Headphones Unique and smart designs along with a great stress on the utilization of the latest technology - that's what makes the Photive products a class apart from the rest. Photive products have been known to provide an ultimate experience in music, power for the devices as well as quality protective cases for safety and ease of portability. On January 1, 2014, Photive launched the smartly-designed wireless Bluetooth headphones - the…