Pros & Cons Pros • Easy to install: Wireless networks have become commonplace with Wireless N being the current standard. Wireless router is easy to purchase, connect it to the Internet, and install in either at home or office setting, it is recommended to hire a network professional to install and setup the wireless router in order to ensure that you have high level of security enabled and there is sufficient wireless coverage throughout the whole areas. • Cost: The cost of the hardware is low, even though you are recommended to use the services of wireless network expert in selecting and configuration of a wireless router. Other than that, routers for commercial are generally more costly, but are more stable and offer much more reliable security
2.1 Wireless LAN Infrastructure Devices Proper WLAN infrastructure design requires understanding and deploying QoS (Quality of Service) on the wireless network to ensure end-to-end data / video/voice quality on the entire network. Like a traditional wired LAN, WLAN is a grouping of computers and peripheral devices that share a common communications backbone. As per the name itself, a WLAN allows users to connect to the LAN through radio transmission. The below mentioned are the most common components of a WLAN. Access point - The access point is an external device which is used for linking a wireless network to a wired LAN.
Due to the operating principle of store and forward technology, it will take a longer time to store and check the frame. Therefore, the efficiency of this technology is lower than cut-through technology. VLAN VLAN is an important and useful application of LAN switching technology. By definition, VLAN is a broadcast domain where members use LAN switch to communicate. It seems all members share the same physical network.
Therefore, 2N-1 wavelengths are sufficient and necessary for a WRMD WDM unidirectional ring with N node to be wide-sense nonblocking for any multicast assignment. Next, we present a simple wavelength assignment algorithm for unidirectional ring. Assume that the wavelengths available are numbered as When a new connection is requested with destination node index i, assign an unmodulated wavelength if source node index is less than destination node. Else assign an unmodulated wavelength for connection from RN to source node and after modulation again to RN. At RN, t is converted to and routed
1.1 Wireless communication There are various generation in the wireless system. We are running with the 4 G wireless system which is more focused on the high speed data communication. The demand for higher capacity with low error has raised manifolds, mainly due to cellular telephony although expected to be soon eclipsed by wireless data applications. The various digital signal processing algorithms like IFFT, FFT can be implemented with the advent of modern chip technology. Due to the success of 2G wireless communication standards especially CDMA technique it has been shown that communication ideas can be implemented in practice .
Digital signals can transmit on different adjacent channels without causing any kind of disruption to either. New devices for example smartphones, tablets, and computers that know how to detect the unused spectrum can use it to transmit wireless broadband signals, this is also known as “WhiteFi” or “Super Wi-Fi.” These frequencies are especially very useful because they can carry a lot of data over long distances and reach even indoors. Tech companies for example Google, Microsoft, Intel, Dell, and HP faced off against lots of broadcasters to support early efforts to even reuse white space for this purpose, and even launched some of the first tests for new devices that can do it. Now, enthusiasm for WhiteFi is being picked up across the world. Moreover, a national demonstration project in the United States has led to public libraries being since spread to Finland, Malaysia, and the Philippines.
A packet is made of a header to route the packet over the network and thedata. The header contains the source and destination IP addresses the source and destinationports, and other options. IP does not provide guaranteed delivery, duplicate avoidance,integrity, or correct ordering of packets. These properties, if needed, are the responsibilityof higher protocol layers (usually the transport layer with the Transmission ControlProtocol (TCP)). Therefore, it belongs to the best effort of delivery protocols’ category.
Verizon provides services that T mobile does not. Other the wireless mobile service, Verizon also provides their customers with the home service. This is known as Verizon fios, which is a very reliable service that provides Verizon customers to have access to high-speed internet connection, home phones and cable tv. In addition, the company’s strength is that it is one of the largest wireless carrier in the US. Furthermore, it is Verizon’s strength, to have a unique business model, with expectational Verizon fios data connection allowing for their company 's success.
What does this mean in terms of your actual telephone? You can access your account on the VoIP network using a desktop telephone, a wireless IP phone (similar to a cell phone), or the soft screen dial pad of your laptop or desktop computer. With this setup, you can literally pick up your things and move to another location without having to forward your calls to a new telephone. You can also access the Web from your IP phone, enabling you to get announcements and e-mail at any point in time. I can strongly say that VoIP is a win-win for everyone.
Confidential information can include an individual 's personal information, classified materials with national security implications and commercial intellectual property (Kim & Solomon, 2016). In the US, there are laws that protect confidential information and IT systems. These legislations require businesses and organizations to have security control mechanisms that protect the confidentiality of sensitive information. Safeguarding data confidentiality is not always easy as technological advances also provide means of easily accessing information from remote locations and making it accessible to many people (Dhillon & Backhouse, 2000). This is despite the numerous technologies that have been designed to protect sensitive data.