ABSTRACT
Mobile devices are getting smaller, lighter, and more powerful; they have bigger screens and longer battery life, more features and more capabilities .With the rapid growth of user demands, and the limitations of third generation (3G) mobile communication systems, it is expected that fourth generation (4G) mobile systems are likely to reach the consumer market in another 4-5 years. 4G systems are expected to become a platform capable of providing increased bandwidth, higher data rates, and greater interoperability across communication protocols, and user friendly, innovative, and secure applications. This system will primarily focus on seamlessly integrating the existing systems like GSM, wireless LAN, and Bluetooth. Since 4G is
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Widespread deployment of WiFi is expected to start in 2005 for PCs, laptops and PDAs. In enterprises, voice may start to be carried by Voice over Wireless LAN (VoWLAN). However, it is not clear what the next successful technology will be. Reaching a consensus on a 200 Mbit/s (and more) technology will be a lengthy task, with too many proprietary solutions on offer.
A third path is IEEE 802.16e and 802.20, which are simpler than 3G for the equivalent performance. A core network evolution towards a broadband Next Generation Network (NGN) will facilitate the introduction of new access network technologies through standard access gateways, based on ETSI-TISPAN, ITU-T, 3GPP, China Communication Standards Association (CCSA) and other standards.
3. Key 4G Technologies
Some of the key technologies required for 4G are briefly described below:
3.1 OFDMA:
Orthogonal Frequency Division Multiplexing (OFDM) not only provides clear advantages for physical layer performance, but also a framework for improving layer 2 performance by proposing an additional degree of free- dom. Using ODFM, it is possible to exploit the time domain, the space domain, the frequency domain and even the code domain to optimize radio channel usage. It ensures very robust transmission in multi-path environments with reduced receiver complexity. As shown in Figure 2 the signal is split into orthogonal subcarriers, on each of which the signal is “narrowband” (a few kHz) and therefore immune to
Currently billions of mobile devices are connected to wireless networks and by the year 2020 when the massive arrival of 5G to the market is expected to be four times higher. This paper aims to analyze the advances in communication for these networks that will be present in all types of portable devices and personal use in addition to computers. It evaluates the progress for aspects of communication and ability to transfer data and information through new wireless networks. The benefits and improvements in communication and performance in different devices for 5G networks are evaluated; this 5G of wireless networks promises an excellent performance in the exchange of personal, business and institutional data, also this paper
The concept of BYOD has broadened with the introduction many different technologies over the last few years, including the web, Wi-Fi, smart devices, and cloud services.
Telecommunications capacities have grown 10 and 20 fold in magnitude, in speed, reliability and performance. The three most significant leaps in telecommunications technology are the leaps from analog to digital to voice over Internet protocol (V.O.I.P); and the Internet speed barrier being broken from narrowband to broadband. Broadband data and telecommunications have had the greatest impact on technological advancement; because the latest methods and knowledge can be shared across the globe instantly. And now that same power of instant broadband data and telecommunication is in the hands of every tech savvy consumer that can afford a smart device.
Abstract: Currently, mobile phone systems are dominating the existing portable device such as Tablet PC’s, Notebooks, and Laptop’s for execution of digital applications [1]. In present situation connecting to data-plan/Wi-Fi (internet) on mobile systems is so easy, as the mobile devices are portable and small can be connected to available networks easily. [2]. Due to this advantage a new concept is emerging that is BYOD “Bring your own mobile device” which means brining our own mobile device to work place and sometimes using mobile device to accomplish the work [3]. In present mobile system there should be a gap in the use of mobile systems for personal and work use due to required
As multimedia services gain momentum, new broadband access technologies emerge to address the specific requirements of such services. To this purpose, there exist several traditional first mile solutions, leveraging cables or fibers, and a novel family of Broad¬band Wireless Access (BWA) technologies. Among BWA tech¬nologies, the IEEE 802.16 standard [1] is considered the leading technology for the provision of Internet-based broadband services in wide
1. Introduction Since contemporary communication came into daily life, people always keep seeking unrestricted communication at all time. Mobile telecommunication satisfied people's demand with the first generation (1G) and the second generation (2G). In the wake of development in multimedia and internet, most of telecommunication mobile networks operators have offered the third generation (3G) to the customers to replace 2G over the past two years. Currently, many ICT professionals and research
Although 4G network in some areas not yet fully universal, but the most recent 5G this topic has fired up. 5G network as a next generation mobile communication network, its theoretical maximum transfer speeds of up to tens of Gb per second, which is far more than the transmission rate of the existing 4G network, the whole ultra-high-definition movie can be downloaded completed within one second. 802.11ac technology are used in fifth generation network as a mainstay. It has also become the focus of the network industry concerned. This report try to represent a full picture of 802.11ac technology.
(4G) Long Term Evolution (LTE) to provide higher data rates to end users by improving spectral efficiency, deploying more base stations, and/or aggregating more spectra. While some of the LTE enhancements, such as advanced multiple-input multiple-output (MIMO), Coordinated multipoint (CoMP), heterogeneous networks (HetNets), and carrier aggregation (CA), deliver the additional capacity needed to sustain the traffic surge for the next few years, none of them is seen as a viable solution to support the hundreds of times more traffic demands foreseen in 2020 and beyond, the so-called 5G era[5]. However, it is expected that in 5G millions more base stations (BSs) with higher functionality and billions more smart phones and devices with much higher data rates will be connected.[6]. In 5G mobile communication it is expected to have the presence of higher traffic volume, increased indoor or hotspot traffic, and higher energy [7]. The growth of wireless system capacity ever since the invention of the radio right up to the present can be attributed to three main factors: increase in the number of wireless infrastructure nodes, increased use of radio spectrum, and improvement in link efficiency. These three ingredients continue to be the dominant drivers of wireless capacity growth today [8]. As it is
Currently, a larger and multihop wireless mesh network includes more than a single gateway for connecting to the Internet. Previously, a single gateway called root node was used to provide access to the Internet. But introduction of multiple gateways in the network allows flexibility in the deployment and selection of the gateways.
In corporate environments, wireless access is being used to perform all sorts of tasks. Wireless applications ranging from wireless Wide Area Networks (WAN) to Voice over Internet Protocol (VoIP) and blackberry's are being used to facilitate constant access to the level of enterprise access. In today's market, connectivity to and from corporate offices and outbuildings, to hotels and conferences is an absolute must.
As the technology world evolves and develops faster and better every day, it puts new demands of speed and throughput on the network that supports it. Today especially, we live in a world where everyone is mobile, and it is expected that mobile networks keep pace with the innovations in technology. The successor of 2G and 3G mobile network standard is the 4G mobile network standard. The emergence of 4G, nonetheless, should provide faster and better mobile network connectivity to support the newer and ever more demanding technologies born every day. The emergence of 4G mobile network technology is aimed at offering higher data speeds and the ability to roam across multiple heterogeneous wireless networks for the
Wireless networks consist of network nodes which makes use of radio communication for the wireless data transmissions. This execution is carried out at the physical layer of the OSI model.
This term paper talks of Wi-Fi, the wireless technology that allows internet connection to be broadcasted through radio waves. Its purpose serves directly to the users looking for internet access devoid of any cords or wires.
The 2.5G it is basically an enhancement of the two major 2G technologies to provide increased