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Wideband Voice Streaming Applet
Downloads VIMAS Technologies is now offering a voice streaming applet which streams wideband voice with audio bandwidth limited to 7500Hz with 16kbps bit rate only. The introduction of a wider audio bandwidth provides substantially improved sound quality...
[June 14, 2003, 5:30]
Wideband Code Division Multiple Access
White Papers To satisfy ever-increasing demands for higher data rates, as well as to allow more users to simultaneously access the network, interest has peaked in what has come to be known as wideband code division multiple access (WCDMA).
[October 11, 2005, 3:00]
Wideband Spectrum Probe for Distributed Measurements in Cellular Band
White Papers This paper presents the architecture of a sensing probe for wideband measurement and distributed measurement method to measure, characterize and model the utilization of the spectrum. One of the foremost critical design problems in cognitive radios...
[December 7, 2006, 0:00]
Joint Scale-Lag Diversity in Mobile Wideband Systems
White Papers This paper considers the effect of mobility on a wideband Direct Sequence Spread Spectrum (DSSS) communication system, and study a scale-lag Rake receiver capable of leveraging the diversity that results from mobility.
[August 10, 2007, 11:26]
Scale-Lag Diversity Reception in Mobile Wideband Channels
White Papers This paper considers the effect of mobility on a wideband Direct Sequence Spread Spectrum (DSSS) communication system, and study a scale-lag Rake receiver capable of leveraging the diversity that results from mobility.
[August 10, 2007, 11:27]
Sega boss outlines "super wideband" Dreamcast network
News More so, Irimajiri said that, when complete, this "super wideband" network will afford delivery speeds so fast and latency so low that gamers can play action-intensive games like Soul Calibur and Sega GT with "no lag time.
[February 16, 2000, 10:41]
Wideband Code Division Multiple Access (W-CDMA)
White Papers Wideband code division multiple access (W-CDMA) is a CDMA channel that is four times wider than the current channels that are typically used in 2G networks in North America. European Telecommunications Standards Institute (ETSI) decided to choose...
[August 14, 2003, 0:00]
Measured Data Rate From Adaptive Modulation in Wideband OFDM Systems
White Papers Adaptive modulation is implemented on a wideband OFDM transceiver prototype to quantify its performance in indoor wireless environment. The measurements indicate that over a bandwidth of 100 MHz, the channel varies quite significantly.
[April 11, 2007, 1:01]
On the Design of Robust Multiband OFDM Ultra-Wideband Receivers
White Papers This paper analyzes the effects of NarrowBand Interferences (NBI) on the performance of a Multi-Band Orthogonal Frequency Division Multiplexing (MB-OFDM) Ultra-WideBand (UWB) receiver and proposes efficient schemes for signal reception and...
[April 13, 2007, 1:01]
Analysis and Practical Comparison of Wireless LAN and Ultra-Wideband Technologies for Advanced Localization
White Papers In this paper the authors compare the capabilities of Wireless LAN and Ultra-Wideband to enable advanced localization systems. The two technologies are compared regarding their suitability towards time-delay-estimation by theoretical bounds as well...
[November 10, 2006, 0:00]
Consultation Paper on the Introduction of Wireless Systems Using Ultra-Wideband Technology
White Papers The intent of this paper, announced in Gazette Notice SMSE-002-05, is to identify public interest and issues regarding the introduction and use of low-power systems using Ultra-Wideband (UWB) technology in Canada.
[February 17, 2006, 0:01]
On MIMO Signal Processing for Adaptive W-CDMA and OFDM Wireless Transceivers
White Papers This paper considers wideband extensions of narrowband signal processing techniques for MIMO wireless transceivers. The extensions are applied and analyzed on commonly used wideband systems such as W-CDMA and OFDM.
[July 21, 2005, 6:00]
Utilizing Path Diversity in Optical Packet Switched Interconnection Networks
White Papers A SPINet switching fabric is comprised of a set of wideband 2×2 photonic switching nodes organized in a Multistage Interconnection Network (MIN). Semiconductor Optical Amplifiers (SOAs) are used as switching elements to allow for all-optical...
[July 18, 2008, 1:01]
Fujitsu plays smart with Symbian
News He points out that the Fujitsu phone, now shipping to Japanese carrier NTT DoCoMo, uses the wideband-CDMA (Code Division Multiple Access) standard, which moves Web pages or e-mails between 386kbps and 2.4mbps.
[December 11, 2002, 6:46]
Intel calls the shots for next-gen Wi-Fi
News The ultra wideband standards process has definitely gotten bogged down in politics," said Sam Lucero, a senior analyst at ABI Research. A similar situation has played out with other developing standards, such as ultra wideband, a short-range...
[October 13, 2005, 16:55]
Nokia, Ericsson reach mobile milestone
News Nokia and Ericsson said on Tuesday that they've each separately reached milestones for mobile phone equipment that uses wideband-CDMA, the cellphone standard expected to dominate its rivals by 2005. Wideband code division multiple access (w-CDMA...
[September 25, 2002, 10:43]
On the Relation Between Bandwidth and Robustness of UWB Channel in Complex Confined Areas
White Papers Ultra-Wideband (UWB) communication has been the subject of extensive research in recent years due to its unique capabilities and potential applications, particularly in short-range multiple access wireless communications.
[July 8, 2008, 1:01]
Precise Timing for Multiband OFDM in a UWB System
White Papers Precise positioning is one attractive application of Ultra WideBand (UWB) systems. Its enormous bandwidth has generated high expectation on the spatial resolution that it could achieve. However, synchronization in the presence of dense multipath is...
[April 13, 2007, 1:01]
Interpolation-Based QR Decomposition in MIMO-OFDM Systems
White Papers The extension of multiple-input multiple-output (MIMO) sphere decoding from the narrowband case to wideband systems based on orthogonal frequency division multiplexing (OFDM) requires the computation of a QR decomposition for each of the data...
[July 26, 2005, 6:00]
Analysis of the Impact of WiMAX-OFDM Interference on Multiband OFDM
White Papers 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...
[April 23, 2009, 1:24]
