Wireless Networking, Part 1: Capabilities and Hardware

Wireless Networking, Part 1: Capabilities and Hardware

These days it isn’t uncommon for a home to have multiple personal computers, and as such, it just makes sense for them to be able to share files, as well as to share one Internet connection. Wired networking is an option, but it is one that may require the installation and management of a great deal of wiring in order to get even a modestly sized home set up. With wireless networking equipment becoming extremely affordable and easy to install, it may be worth considering by those looking to build a home network, as well as by those looking to expand on an existing wired network.

The first installment in this two-part series of Tech Tips will provide an introduction to the basic capabilities and hardware involved in wireless networking. Once that foundation has been established, we’ll take a look at a few setup and security related considerations that should be addressed once the physical installation is complete.

Capabilities

The basic standard that covers wireless networking is the Institute for Electrical and Electronics Engineers’ (IEEE) 802.11, which is close kin to the wired Ethernet standard, 802.3. Many people will recognize 802.11 more readily when accompanied by one of three suffixes (a, b, or g), used to specify the exact protocol of wireless networking.

The 802.11a protocol first hit the scene in 2001, and despite a small surge in recent popularity, it is definitely the least common of the three at this time. The signals are transmitted on a 5 GHz radio frequency, while “b” and “g” travel on 2.4 GHz. The higher frequency means that the signal can travel less distance in free space and has a harder time penetrating walls, thus making the practical application of an 802.11a network a bit limited. The maximum transfer rate, however, is roughly 54 Mbps, so it makes up for its limited range with respectable speed.

As mentioned, 802.11b and 802.11g networks operate on a 2.4 GHz radio band, which gives a much greater range as compared to 802.11a. One downside to being on the 2.4 GHz band is that many devices share it, and interference is bound to be an issue. Cordless phones and Bluetooth devices are two of many items that operate at this frequency. The range of these two protocols is about 300 feet in free air, and the difference between the two comes down to speed. 802.11b came first, released back in 1999, and offers speeds up to 11 Mbps. 802.11g first appeared in 2002 and it is a backwards compatible improvement over 802.11b and offers speeds up to 54 Mbps.

On top of these protocols, some manufacturers have improved upon the 802.11g standard and can provide speeds of up to 108 Mbps. This doesn’t involve a separate protocol, but just a bit of tweaking in areas like better data compression, more efficient data packet bursting, and by using two radio channels simultaneously. Typically, stock 802.11g equipment is not capable of these speeds, and those interested need to shop for matched components that specify 108 Mbps support. I say “matched components” as this is not a standard protocol and the various manufacturers may take different approaches to achieving these speeds. In order to ensure the best results when trying to achieve these elevated speeds, components from the same manufacturer should be used together. For instance, only Netgear brand network adaptors rated for 108 Mbps data transfer should be used with something like the Netgear WG624 wireless router (http://www.geeks.com/details.asp?invtid=WGT624NAR).

Considering your typical broadband Internet connection is going to offer data transfer rates of 10 Mbps or less, it can be seen that even 802.11b would be more than adequate if you just want to surf the web. Sharing files on your LAN (Local Area Network) is where the faster protocols will really make a difference, and comparing the prices of 802.11b and 802.11g components may show that there is little to no difference in selecting a “g” capable device over a comparable “b” capable device.

Hardware

Access Point – Wireless Access Point (WAP) is the central device that manages the transmission of wireless signals on a network. A base access point may be capable of handling up to 10 connections, and more robust APs may be able to manage up to 255 connections simultaneously. The D-Link DWL-1000AP+ (http://www.dlink.com/products/?pid=37) is an example of a wireless access point capable of 802.11b transmissions.

Router – In somewhat technical terms, a router is a network device that forwards data packets. It is generally the connection between at least two networks, such as two LANs, or a LAN and ISP’s (Internet Service Provider’s) network. For our purposes, and for the sake of simplicity, a wireless router is basically an access point with the added feature of having a port for sharing a broadband Internet connection. The D-Link AirPlus G (http://www.geeks.com/details.asp?invtid=DI524-R&cat=NET) is an 802.11g capable router that provides access for numerous wireless connections and four hard-wired connections to one WAN (Wide Area Network Internet) connection. A typical router for home use will generally cost less than an access point, and via settings within the firmware, can be used as just an access point anyway. Wired or wireless, all the computers using the router can share files over the network, as well as sharing a broadband internet connection. Communication between wireless computers (or a wireless computer and a wired computer) will max out at 54 Mbps, while communication between wired computers will take full advantage of the 100 Mbps provided via the 802.3 protocol.

Network Adaptor – A network adaptor is required for every computer that you would like to be connected to the wireless network. Many laptops, such as this Sony Centrino 1.5 GHz (http://www.geeks.com/details.asp?invtid=PCGZ1RA-R&cat=NBB) now include a wireless adaptor built in, so no extra hardware is needed. For those with systems that don’t have wireless capabilities built in, adding them is fairly simple, and can be done using a variety of connections. Desktop computers can go wireless by adding a PCI slot network adaptor such as the 802.11g capable D-Link DWL-G510 (http://www.dlink.com/products/?pid=308). Notebook users can easily add wireless connectivity by using a PCMCIA adaptor, such as this 802.11g capable device (http://www.geeks.com/details.asp?invtid=PBW006-N&cat=NET). And for truly convenient plug-n-play connectivity to wireless networks, USB adaptors such as this 802.11g capable dongle (http://www.geeks.com/details.asp?invtid=80211GWUD&cat=NET) are available.

Antenna/Extender – These items are not essential, but given the specifics of a wireless environment, they may be helpful. Devices such as the Hawking Hi-Gain Antenna (http://www.geeks.com/details.asp?invtid=HAI6SIP-N&cat=NET) or the Super Cantenna (http://www.geeks.com/details.asp?invtid=SCB10&cat=NET) serve the purpose of increasing the wireless signal strength, and therefore extend the range of a given wireless network. Not only can a large area of open space be covered, but the signal quality may be improved in structures with walls and floors that obstruct the signal transmission.

Final Words

In this Tech Tip, we took a look at the basics of wireless networking as it relates to capabilities and hardware. In the second part of this two-part series, we will look at some of the basic setup and security considerations that should be addressed. The physical installation of a wireless network may be exponentially easier than a wired network, but the more difficult part is setting up the software and security to make sure everything stays up and running without incident.

What Is Digital Marketing?

In the last decade, the reliance on the Internet has certainly changed the way in which business is connected. It is clear to most business owners that without an online presence, your business is really missing out on a major of marketing, advertising, and success. Nowadays, anyone who is anyone keeps their own blog, social media platform, and of course a website. If you are a business owner and you do not have a website, you are neglecting to market yourself in the most effective way. That is why it is critical for every business to not only build a site for themselves, but also reinforce its presence through digital marketing.

What is digital marketing? And, how / why is this kind of advertising so important to a business? Let's consider these important elements of online strategizing:

What is digital marketing?

In its very essence, this kind of advertising conjoins the promotion and advertising in an online platform. The basic principles, values, ad tactics of traditional marketing are still at the core of this innovative phase, there is a seemingly more insightful guise into the consumer behavior and target demographic. This digital promotion possesses all kinds of internet marketing, however it focuses on digital media. SEO is only one kind of digital marketing tactic.

The way in which digital promotion is enforced is another interesting property. Various sources can be utilized to promote products and services of a business, including websites, mobile devices, instant messages, and SMS among many others. In addition, the digital nature of this kind of marketing is considered as one of the most cost effective means of advertising.

Two kinds:

Push digital marketing: Just as the name suggests, push marketing is directed to push the advertising information directly towards the target clientele. Often times, marketers will initiate the push marketing through email, RSS, or SMS, really targeting the receiver or clientele with a personalized message. This means is also powerful in that it is easy to track, monitor, and measure the relative efficiency of the marketing.

Pull digital marketing: The pull method of marketing is aimed at garnering customers to come to you. The marketing for this means will be communicated to compel the individual to make a call to action or come visit your business. The most obvious or pervasive example is a web page, website, or any other Internet based medium. While this means of digital advertising is not as easy to personalize or track, it is still effective and powerful nonetheless.

Car Charity Donations: How To Go About Them Seamlessly

Every once in a while, the need for a new car arises, and when it does, many people are often at a loss on what to do with their current or old car. The options most of them have in mind include delivering the old car to a junk yard, selling it, or possibly relinquishing ownership to a friend or relative. Yet, car charity donates provide a fourth and better option, which is totally hassle-free.

First things first, car charity donation reiterates the transfer of ownership of an automobile one no longer needs to a charitable organization. People do this for various reasons including tax relief, but before one jumps onto the bandwagon of car donation, they need to know the basics of how car charity contributions work.

People have been told that the process of donating a car to a charitable organization is as easy as calling them to come and drive or haul it away. Well, this is true, but like everything else in life, one has to prepare their car for donation to avoid unnecessary complications that may come afterward.

Since the donation process involves a complete transfer of ownership, it is advisable to capture clear images of the inside and outside of the car, if possible, with dates. This is necessitated by the fact that once the car leaves the custody of the donor, so does its official documentation including proof of ownership documents. Some unscrupulous individuals or organizations are likely to take advantage of this loophole to defraud otherwise good-intentioned citizens of their cars for selfish gain. Having clear images of the car just before the donation can help with the recovery process should the need arise.

Another element of preparation worthy considering prior to donating a car to charity involves keeping track of repair and maintenance records. This applies to cases where the car needs to be fixed before before donation. The service and spare part receipts increase the value of the car when dealing with the taxman.

Once these preliminary preparations have been completed successfully, it is time to call the charity organization to come for the car or drive it there. Most people tend to focus only on this step to show how easy it is to donate a car to charity. It is, but for the individual who seeks to draw the full benefits of donating a car to charity, the outstanding preparations are inevitable. When a representative from the organization finally comes for the car (they normally do), it is critical to ensure that they leave behind a document showing the full details of the organization in question, the car, as well as the time and reason for pickup . This should be some sort of receipt acknowledging the donation.

The above step concludes the donation process. What follows is beyond the donor's influence. All they can do from this point onwards is to wait until the car has been sold. Typically, the charity organization notifies the car donor of a sale within a span of one month after the sale is made. If they fail to do so, the donor has the right to make an inquiry about the same. When the organization sells the car, they are obliged to supply the donor with a written acknowledgment of the sale.

The donor can then proceed to claim a tax relief from the IRS using the donation documents and any other relevant documents. Also, of critical importance is that the donor may be required to inform the relevant authority about the change of ownership depending on the state in which they benefit. This serves to protect the donor from bearing the burden of tickets and other car-related costs, which should be paid for by the next owner of the car.

All About Your 3G Internet Service

In the technology circle, there is much hue and cry about 3G internet services. It is a known fact to everyone that 3G stands for "3rd Generation", but very few are aware of this technology from its core. Basically, it's an initiative taken by the International Telecommunication Union to create a global wireless standard for mobile internet access. However, it requires a minimum mobile internet access speed which is comparable to DSL (Digital Subscriber Line) internet speed. To meet the technology standards, there needs to be high-volume voice services.

Unlike its predecessor 2G (2nd Generation) technology, which was discovered around voice applications including talking, call-waiting and voicemail, 3G technology emphasizes on internet and multimedia based applications that facilitate web browsing, music downloads, video conferencing etc. However, to access 3G network, your device need to support an information transfer rate of at least 200 Kbit / s. With the increased demand for high-speed internet services, the popularity of 3G is also surmounting. The technology has multiple benefits to offer, some of which are discussed below:

High-speed Internet on the Go: Before the advent of this technology, it was almost a dream to get access to high-speed internet on the go. Modern developments in mobile technology coupled with 3G has created great opportunities for users to surf internet at a blazing fast speed, even while they are traveling.

Reaches Remotest Corners: It's easy to find 3G access at places where wired connectivity is difficult to install. This helps minimize the gap in internet access in rural areas or areas with limited connectivity. The speed sometimes exceeds the speed of dial-up internet services.

Affordability: 3G standards benefited the rural people to a great extent. While it's expensive to set up wired connections at homes, the wireless internet costs less and offer better speed to the users. With the development of this telecommunication technology, users can now get high-speed connectivity even on their mobile devices.

Multimedia Usage: Both corporate and personal consumers benefit from the service as it facilitates the use of diverse multimedia applications and enhancements the wireless internet experience. It enables real-time video conferencing, music download at a faster speed, uploading and downloading files at a speed that equals to wired broadband services.

Stay Entertainment: Internet offers multiple ways to keep the users entertained. For lightning fast internet speed and seamless network availability, users can enjoy online gaming, listen to their favorite music or watch movies online with their 3G internet connection.

Although, 3G internet technology is getting momentum both in urban and rural areas, there are still some places where this technology is not as effective as metropolitan cities like New York and San Diego. While telecommunication experts are hopeful to enhance the reach of both 3G and 4G (4th Generation) networks and make the services more affordable for the users, the increased traffic and the usage of mobile devices are the two main issues of concern for the tech experts. Moreover, to sustain a balance in the environment, there needs to take more precautions, as wireless rays often cause harmful radiation, which have adverse impact on the environment.