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- Palm Pre has a date: June 6; Price: $199.99; A 'crossover' device?
- Palm Pre has a date: June 6; Price: $199.99; A 'crossover' device?Good luck, they'll need it...It ain't no iPhone, and never will be an iPhone. No AppStore, iTunes or iPod and limited to what it comes with. Why would I buy one of these when I can buy an iPhone...
- Tags: Smart phones, Cellular phones, Handhelds, Digital music, Apple iPhone, Palm Pre, Palm Inc., Pre
- Discussion threads 2009-05-19
- 4G wireless makes progress with WiMax, LTE developments
- 4G wireless makes progress with WiMax, LTE developmentsgood to hear verizon is upgrading, but if it doesn't use sim cardsit won't help me.Verizon LTE could include SIMsLTE is an evolution of GSM/HSPA and not Verizon's current CDMA network. That means you could very likely see Verizon start doing SIM cards...
- Tags: Cellular phones, Flash memory, Wireless and Mobility, WiMAX, LTE, SIM card, GSM, 4G
- Discussion threads 2009-05-14
- ASIC Implementation of Autocorrelation and CORDIC Algorithm for OFDM Based WLAN
- This paper deals with design and implementation of Autocorrelator and CORDIC algorithm for OFDM based WLAN on ASIC. The architectures of both Autocorrelator and CORDIC are processed through ASIC Design flow to check for the timing of both setup as well as hold time for 130nm technology. Autocorrelator is designed...
- Tags: Algorithm, WLAN, Autocorrelator, Matlab Simulation, ASICs, OFDM, Wireless LANs, LANs, Semiconductors, Hardware, Wireless And Mobility, Networking
- White papers 2009-02-28
- Mobile WiMAX Performance Improvement Using a Novel Algorithm With a New Form of Adaptive Modulation
- Worldwide Interoperability for Microwave Access WiMAX is an emerging broadband wireless technology that promises high-speed data services. Mobile WiMAX is a broadband wireless solution that enables convergence of mobile and fixed broadband networks through a common wide area broadband radio access technology and flexible network architecture. Mobile WiMAX is based...
- Tags: Algorithm, Performance, Mobile, Broadband Wireless, Broadband, Universiti Kebangsaan Malaysia, WiMAX, Broadband Internet, Wi-Fi, Wireless And Mobility, Telecommunications, Network Technology, Networking
- White papers 2009-02-01
- An IEEE 802.16 WiMAX Module for the NS-3 Simulator
- ns-3 is a recently released next generation simulator intended as a replacement of the popular ns-2. It enables a highly rich set of features and is expected to become the first choice of the scientific community soon. ns-3 is in its evolution phase and work at different fronts is still...
- Tags: IEEE 802.16, Ns-3, WiMAX, Wireless And Mobility, Wi-Fi
- White papers 2008-11-05
- Multi-User Adaptive Resource Allocation Scheme for WLAN OFDM-MIMO Transmission
- Orthogonal Frequency Division Multiplexing OFDM has recently been proposed for use in high data-rate wireless systems. OFDM has an important property of spectrum utilization technique that distributes each tone, which is orthogonal with every other tone. The system capacity can be significantly improved by multiple transmit and receive antennas that...
- Tags: WLAN, MIMO, Allocation, Wireless, PSG College Of Technology, OFDM, Wireless LANs, LANs, Wi-Fi, Wireless And Mobility, Networking
- White papers 2008-08-25
- Digital Automatic Gain Control Integrated on WLAN Platform
- This paper presents a solution for DAGC Digital Automatic Gain Control in WLAN receivers compatible to IEEE 802.11a/g standard. Those standards define communication in 5/2.4 GHz band using Orthogonal Frequency Division Multiplexing OFDM modulation scheme. WLAN Transceiver that the author has used enables gain control over Low Noise Amplifier LNA...
- Tags: WLAN, Wireless LANs, LANs, Wi-Fi, OFDM, Wireless And Mobility, Networking
- White papers 2008-07-01
- Hardware Link Level Emulator for System Level Simulations of WiMAX-Like Systems
- This paper describes the Hardware Link Level Emulator HLLE developed for hardware acceleration of the system level simulations of the WiMAX-like OFDM and OFDMA systems. The proposed architecture of the HLLE including transmit pipeline, channel emulator, receive pipeline and control blocks is presented. The performance characteristics of the developed HLLE...
- Tags: WiMAX, Hardware, Emulator
- White papers 2008-06-25
- An Advance in Wireless Broadband Communications Based on a WiMAX-HAPS Architecture
- This paper summarizes the evaluation of the synergy of a WiMAX-High Altitude Platforms HAPs system at S-band for a low-cost fast-availability deployment in supplying broadband wireless communications services in a dynamic environment and enhancement of terrestrial telecommunications. The performance task is progressed relying on the basis of the IEEE 802.16-2004...
- Tags: Broadband Wireless, Broadband, Wireless Broadband, Wireless, Broadband Internet, Telecommunications, Network Technology, Wireless And Mobility, Networking
- White papers 2008-06-12
- WiMAX IEEE802.16
- WiMAX is revolutionizing the broadband wireless world, enabling the formation of a global Wireless industry. These days many researchers, manufacturers and operators are looking at IEEE 802.16 a WiMAX certified technology. WiMAX networks are foreseen to provide broadband wireless access to mobile users everywhere at lowest costs. This paper gives...
- Tags: Broadband Wireless, Broadband, Wireless, WiMAX, Wi-Fi, Wireless And Mobility, Broadband Internet, Telecommunications
- White papers 2008-05-12
- Techno-Economic Case for a Remote WiMAX Cell
- Problem of providing reliable and economically sustainable modern digital telecommunications services in remote rural areas is not new, and using Fixed Wireless Access FWA systems had been previously suggested as being one of the most appropriate solutions to resolving this problem. After certain decline, the revival of FWA technology had...
- Tags: OFDM Technology, OFDM, WiMAX, Wireless And Mobility
- White papers 2008-05-08
- RF Transceiver of WiMAX Base Station for 802.16d
- The design of a RF transceiver for WiMAX base station based on IEEE 802.16d standard using OFDM technology is presented in this paper. The RF transceiver operates in 700MHz frequency band, and employs dual-conversion configuration and FDD mode. The experimental results show that the RF transceiver has perfect performance for...
- Tags: IEEE, RF Transceiver, WiMAX, Wi-Fi, OFDM, Wireless And Mobility
- White papers 2008-04-08
- Effects of Fixed Point FFT on the Performance of OFDM in Wireless LAN
- This paper analyzes the effects of fixed point Fast Fourier Transform FFT computation in Orthogonal Frequency Division Multiplexing OFDM for Wireless Local Area Network WLAN application. The performance of WLAN has been investigated using Matlab simulations under Additive White Gaussian Noise AWGN channel for different modulation schemes. The simulations carried...
- Tags: Performance, WLAN, Wireless, LANs, OFDM, Wireless LANs, Wi-Fi, Wireless And Mobility, Network Technology, Networking
- White papers 2008-02-22
- Diversity Techniques to Combat Fading in WiMAX
- The IEEE 802.16 standard is often referred to as WiMAX today. It represents a distillation of the most advanced technology and an industry consensus permitting equipment interoperability. It holds the promise of delivering high speed internet access to business and residential customers and to remote locations where traditional broadband services...
- Tags: Technique, Université SAAD DAHLAB Blida, Productivity, WiMAX, Wireless And Mobility
- White papers 2008-02-01
- Experimental Evaluation of Adaptive Modulation and Coding in MIMO WiMAX With Limited Feedback
- This paper evaluates the throughput performance of an OFDM WiMAX (IEEE 802.16-2004, Section 8.3) transmission system with Adaptive Modulation and Coding AMC by outdoor measurements. The standard compliant AMC utilizes a 3-bit feedback for SISO and Alamouti coded MIMO transmissions. By applying a 6-bit feedback and spatial multiplexing with individual...
- Tags: Measurement, MIMO, Transmission, Hindawi Publishing, AMC, Performance Management, OFDM, WiMAX, Wireless And Mobility, Human Resources, Workforce Management
- White papers 2007-11-28
- WiMAX and WiFi Together: Deployment Models and User Scenarios
- The integration of WiFi into notebooks has accelerated the adoption of WiFi to the point where it is nearly a default feature in notebooks. Over 97% of laptops ship with WiFi integrated, and an increasing number of handhelds and Consumer Electronics CE devices are adding WiFi capabilities. This paper explores...
- Tags: Wireless LANs, Wi-Fi, Wireless And Mobility, WiMAX
- White papers 2007-11-19
- From WiFi to WiMAX: Techniques for High-Level IP Reuse Across Different OFDM Protocols
- Orthogonal Frequency-Division Multiplexing OFDM has become the preferred modulation scheme for both broadband and high bitrate digital wireless protocols because of its spectral efficiency and robustness against multipath interference. Although the components and overall structure of different OFDM protocols are functionally similar, the characteristics of the environment for which a...
- Tags: Technique, WiMAX, Wi-Fi, Wireless, Wireless Protocol, OFDM, Wireless And Mobility
- White papers 2007-11-05
- Study the WiMax physical (PHY) layer and the benefits and tradeoffs associated with its various modes
- Study the WiMax physical PHY layer in this chapter download from Fundamentals of WiMax: Understanding Broadband Wireless Networking. Investigate the nature of the WiMAX PHY layer and understand the various benefits and tradeoffs associated with its various options or modes. Chapter coverage includes: Examining the various components...
- Tags: Benefit, Prentice Hall Inc., Chapter Coverage, WiMAX, Wi-Fi, Wireless
- Book chapters 2007-10-11
- Analysis of the Impact of WiMAX-OFDM Interference on Multiband OFDM
- This paper presents an analysis of the performance of the Multiband Orthogonal Frequency Division Multiplexing (MB-OFDM) system for Ultra WideBand UWB communication in the presence of interference from an IEEE 802.16 WiMAXOFDM system operating in the 3.5 GHz band. Recent work (Hu & Beaulieu, IEEE Trans. Commun., Oct. 2006) has...
- Tags: UWB, Approximation, University Of British Columbia, Analysis, Ultrawideband (UWB), Wireless And Mobility
- White papers 2007-07-17
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