Sciences Journal 12 (3): 330-335‚ 2011 ISSN 1818-4952 © IDOSI Publications‚ 2011 Multi-band Carrier Code Division Multiple Access for 4G Mobile System with Improved Signal Quality Jalal J. Hamad Ameen and Widad Binti Ismail School of Electrical and Electronics‚ Universiti Sains Malaysia‚ Pulau Penang‚ 11800‚ Malaysia Abstract: The proposed frequency band for a 4G mobile system is 2 to 8 GHz‚ while the proposed access for the system is MC-CDMA / OFDM. In this paper‚ a new access technique has been
Premium Modulation
Access which is known as WiMAX technology and its usage. It will also explain that what the need for producing such technology was and some of the applications such as Triple Play and WiMax Backhaul. What is special in WiMAX and whether it is better than WiFi or not? What are the advantages and the disadvantages of WiMax? I will also explain that what makes it different from Wi-Fi regarding coverage‚ expenses and deployment. Some of the enhancements and failures cases with WiMax are also presented.
Premium
test your Internet data communications speed. You can find a good one at Speakeasy (www.speakeasy.net/speedtest). (If that site is no longer active‚ perform a search for "What is my Internet speed?" to find another speed-testing site. Use it.) a. While connected to your university’s network‚ go to Speakeasy and test your speed against servers in Seattle‚ New York City‚ and Atlanta. Compute your average upload and download speeds. Compare your speed to the speeds listed in Figure 6-11. b. Go home‚
Premium Uploading and downloading Coaxial cable New York City
What is WiMAX? WiMax is a wireless digital communications system‚ also known as IEEE 802.16‚ that is intended for wireless "metropolitan area networks". WiMAX can provide broadband wireless access (BWA) up to 30 miles (50 km) for fixed stations‚ and 3 - 10 miles (5 - 15 km) for mobile stations. In contrast‚ the WiFi/802.11 wireless local area network standard is limited in most cases to only 100 - 300 feet (30 - 100m). With WiMAX‚ WiFi-like data rates are easily supported‚ but the issue of
Premium Internet
Telecom‚ Media & Entertainment the way we see it Long Term Evolution LTE Opportunities and Challenges for Telcos Telecom & Media Insights Issue 58 sdtkla westkjlal Long Term Evolution 9 Contents 1 Abstract 1 2 The Need for LTE 2 3 Technology Options for Operators – – FDD LTE TDD LTE (TD-LTE) 5 6 6 4 Challenges in LTE Implementation – – – – Technical Challenges Regulatory Challenge Ecosystem Related Challenges Return on Investment (ROI) 8 8 9 10 11
Premium
History of Long Term Evolution (LTE) The Third Generation Partnership Project (3GPP) started on the work of Evolution of 3G Mobile System at RAN Evolution Work Shop on November 2004 in Toronto‚ Canada. They opened a work shop to all interested organization and interested parties. Proposals on evolution of Universal Terrestrial Radio Access Network (UTRAN) were presented there. High level requirements such as reduced cost per bid‚ flexibility of existing and new frequency bands‚ simplified architecture
Premium
Question #1 (a)Requirements for 4G & challenges: 4G is fourth generation standard for mobile phones and telecommunication. It is preceded by 3G. 4G designer has been facing some technical challenges against the requirements. Yes‚ 4G can meet all requirements if designer overcome the challenges. Data in 4G traffic is centric‚ data traffic channel increase instead of voice traffic channels. In wireless link user demand for services with the implementation of Asymmetric Digital Subscriber Line
Premium Radio OSI model Data Link Layer
Download Services Introduction In computer networks‚ the term “download” means to receive data (to your local system) from an external‚ remote system. Examples of such systems include FTP server and e-mail servers. It is implied that the data that is to be downloaded is going to be stored permanently. In many cases‚ users of download services use tools which are dedicated to the task of downloading‚ known as download managers. Download managers have various features‚ including the ability to
Premium Uploading and downloading File sharing Computer software
An Overview of Mobile WiMAX (IEEE802.16e-2005) Technology Abstract The increasing demands for high-speed mobile Internet access over the past few years have motivated the development of broadband wireless access technologies. Mobile WiMAX (based on IEEE 802.16e-2005 standard) provides a solution to meet the demands. This paper will present a high-level overview of the development of Mobile WiMAX and the key technologies involved in Mobile WiMAX. This paper will also address the future development
Premium
create a continuous competitive market and deliver more services via mobile broadband to customers‚ the Third Generation Partnership Project (3GPP) developed an evolved 3G technology called LTE which tends towards the 4G technology. This work highlights the overview of LTE as well as the expectation which the technology is expected to meet which attributes its advantages. Being the first true IP-Packet technology with new architecture‚ the network architecture evolution is also discussed and the technologies
Premium