4G Wireless Networks

4G Wireless Networks

Introduction

The existence of 4G system in today's world of technology indicates the sense of change and advancement. The 4G network communication provides network speed, wireless capabilities, and visual technologies. With these network advancements, there is a continuous room of changes and development in the technological world (Rumney, 2013). This paper contains the features of 4G technology and its detailed network of communication in terms of its implementation.

Discussion

The 4G (or the fourth generation) technology of wireless networks implement the designs that are far better and advanced than the 3G technology. Its infrastructure functions at the highest position of the existing TDMA, CDMA and GSM technologies. Most pronounced aspects of this technology include the strengthening of user mobility and the development of advanced applications of mobile (Varshney, 2012). Here is the evolution of mobile standards in terms of technological networks,

Figure 1(Mobile Standards)

Implementing 4G's Service

The utilization and implementation of 4G network is significant to the increased use of websites across the globe. Most importantly, the users of cell phone access the websites on the basis of its mobility. Therefore, these users aspire for the best quality of services. 4G network facilitates these requirements of users with its advanced nature. 4G has intentions of altering the paradigm of communication network of users through the use of a single device. This device is connected to a single network in most of the cases. Based on its upgraded nature as compared to 3G, it provides its users to access and connect all types of portable devices on its network (Correia, 2010). ABC (Always Best Connected) Character of 4G uses the best network for providing the services over its network to the individuals. It intends to embed its broadband services in all the devices of users.

The above figure shows the Advanced vision of IMT (IMT-A) of various access networks that are interconnected for providing services in a collaborative manner. ITU has defined a set of layers for achieving the pre-set visions. These layers are defined on the basis of the geographical extent of coverage in terms of mobility (Correia, 2010). It includes these four layers,

Fixed layer: It is the cable, DSL or the fiber that ensured fixed networks of wireline.

Personal layer: This layer incorporates the use of Bluetooth or UWB for making connections. It is used in cell phones, cars and smart phones.

Hot-spot layer: This layer is the use of Wi-Fi/802.11 that is used in coffee shops, planes, restaurants.

Cellular layer: Cellular layer implies as the use of WiMAX and UMTS by mobile users.

With this layered network, interactions are not restricted in a direction that is horizontal or vertical. It provides directional interaction in the form of intra-network (horizontal) and internetwork (vertical). This directional interaction maintains the service continuity with encompassing the complex systems of security, billing, Quality of Service (QoS), privacy, fault location, and network resilience (Correia, 2010).

Key Characteristics of 4G Network

For the purpose of facilitating the users with seamless interaction, the network of 4G carries the following characteristics,

Efficient Support

The entire topology ...