Radio Techniques For A Efficient Wireless Network

In this smart world there is a rapid growth in using mobile network for requesting many queries, especially videos.Problem is more Base Staion (BS) is required for providing a continuous service, for the user to view videos without getting buffer, or in degrading of video quality. Since more BS are required, all BS has to be active all time, therefore energy requirement is more. It cause more power consumption, also if BS is reduced for save power it leads to poor quality of service(QOS). During peak traffic load during rush hours, wireless access network must be over deployed. It requires lot of BS to be active even when many times slots in a BS are free while providing service. Also, in a low-traffic period, the user will not request any data, but the BS have to be active.

Wireless is the term used to describe any computer network where there is no physical wired connection between sender and receiver, but rather the network is connected by radio waves and or microwaves to maintain communications (Boyds, 2016). Wireless and mobile technologies continue to have a major impact on the global business environment and can be roughly categorized into mobile client devices for interactivity and communications infrastructure. Wireless technology is technology that uses radio waves to transmit and receive data, such as cell phones. It is used more than ever today for data transmission. Mobile

It is important to know that all access points are not safe. There are precautions Party Plates may implement when using public accesses. We should avoid connecting to unknown public access points. Never use public “open” networks to access your banking, credit card or other sensitive sites and always establish a VPN connection as soon as you connect to the Wi-Fi ("The Pros and Cons of Using Computer Tablets," 2011, p. 1)

Each time a cell phone user makes a call, it emits a low level of radiofrequency energy as the phone’s antenna generates radio waves that

In last few years cellular communication is developed, mobile users are increased and also introduce new features of smart technologies such as virtual environment of data transfer using D2D communications. It performs high speed communication for local cellular networks in approaches [1]-[4] and to minimizing the BS power consumptions as in [5]. The D2D communications proposed for different time slot and same frequency used and carefully managed interference, reducing Base station traffic and minimizing transmission power. The different power saving mechanism in Radio Resource Management (RRM), power control is very important for cellular networks and beneficial to link in adaptation, interference reduction. Depending off on time of day or geographic location BS may be an idle but mobile terminal not negatively affected.

Mobile wireless access networks have evolved from first generation, second generation, third generation, fourth generation and now fifth generation (Umar, 2004). Umar further states that first generation cellular systems used analogue transmission and were

Abstract— The demand for wireless access is permanently growing and the transmission bandwidth is limited. Higher data rates and signal quality is always desired among the users; therefore a more efficient use of the frequency resource is needed to fill the user capacity needs. Space Division Multiple Access (SDMA) is used to increase the capacity given by regular multiple access techniques (FDMA, TDMA and CDMA) using the user position information to provide access to the best communication channel based on their spatial location. This paper presents Smart Antenna techniques applied to SDMA systems as an efficient frequency usage technique.

Wireless communication has emerged as its own discipline over the past decades.From cellular voice telephony to wireless internet and data services,data service has profoundly impacted our lifestyle.After a decade of exponential growth today wireless network is one of the largest industry in the world.

With the rapid development of wireless communication systems, there will be a need for the network deployment of independent mobile users [1]. Significant examples such as establishing survival, proficient, active communication for emergency/rescue operations, disaster management efforts, and secured military networks [2]. ]. Vehicular Ad-hoc Networks (VANETs) can be considered as a subclass of Mobile Ad hoc Networks (MANETs) with some unique characteristics. Vehicles move on the roads sharing information among them. Vehicles often move at high speed but their mobility is within regular constraints and predictable. An accurate estimate of vehicle’s position can be made available through GPS systems or on-board communication unit. VANETs

Due to the innovations in wireless technologies and recent developments in electronic circuits, there is ever increasing trend in the usage of mobile devices that are part of wireless networks. People of all lifestyles are using different kinds of mobile devices. In this context, there has been increased research in the multimedia applications that run over wireless networks.

Introduction The world lives a large evolvement in all life aspects. Everything moves in the comfort direction. One of these aspects is the technician aspect and it is an important part of everyone 's life as every thing around you become technician. In your room there is a TV, mobile, laptop...etc. Even most of kids ' toys became in need to a remote control. The wireless technology means no need to wires or cables. Wi-fi and Bluetooth are examples of that. Mobile wireless industry now is in the head of all industries due to the increasing in mobile usage day after day. It passed through several generations until it reached this great evolvement which we see now. It started with the first generation 1G with analog communication. In the second generation 2G the digital messaging was added to the analog communication. In the 3G, both calls and messages became digital. In the 4G –which we have now- the improvement was in the usage of a large bandwidth. The generation which is expected to appear is the 5G. The 5G is purely based on the 4G and will give a huge level of bandwidth which we cannot imagine. Furthermore, there are two predicted generations 6G and 7G. The 6G will be a satellite based network with speed up to 1 GB. This leads to the space roaming problem which shall be solved by the 7G. The report is organized as follows. First and Second section provides literature review of past and current mobile communication generations from first generation (1G) to fourth

The purpose of the paper is to focus on the development of wireless mobile telecommunication. Firstly, cellular network technology is introduced to understand the basis of wireless mobile telecommunication. And then the history evolvement of mobile telephone systems is investigated to help know the background of fourth-generation wireless communication (4G). Finally, the standard of 4G, different categories, the spread spectrum radio technologies as well as potential benefits and problems that come with it are discussed. Especially, LTE standard is further explained, including FDD-LTE, TDD-LTE and LTE advanced.

By the work above, we found out two of the main factors that influence the power consumption. Then we will go further to explore the method to save energy of the phone. We did a survey on a number of papers and found several methods to achieve this goal.

In order to minimize the energy consumption at the end device and the usage of the Cellular spectrum should be used only if necessary [17]. We can aggregate Wi-fi and Cellular link Based on the detailed information available for a certain application is possible [18], and can be compared in terms of benefits as well as drawbacks.

Abstract – Conventional wireless communication schemes use radio/micro wave frequencies for data transmission, primarily because of the availability of high sensitivity receivers and ability to provide broad coverage at low frequencies and line of sight communication at high frequencies. But, RF can support only a limited bandwidth due to confined spectrum availability. Therefore the expanding demand for wireless data has led to clogging of the radio spectrum. Thus there is a need to study and use new communication technologies in near future that will reduce interference and will be a clean source of communication. Communication is providing new advances constantly, people are depending more and more on the benefits they provide.