ultra wideband
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Utilizing Path Diversity in Optical Packet Switched Interconnection Networks
White Paper Semiconductor Optical Amplifiers (SOAs) are used as switching elements to allow for all-optical wideband transmission and packet-rate granularity, facilitating high bandwidth, ultra-low latency, and high utilization that are required for future... [18 Jul 2008]
Ultra Wideband Double Discon Antenna Showing 30:1 Bandwidth
White Paper This paper proposes an improved discon antenna (double discone antenna). The double discone antenna consists of two discon antennas having two different dimension. One small discon antenna covers high frequency bandwidth, the other big discon... [11 Jul 2008]
On the Relation Between Bandwidth and Robustness of UWB Channel in Complex Confined Areas
White Paper 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. [08 Jul 2008]
Ultra-Wideband: A Wireless Renaissance in the Making
White Paper Ultra-wideband is a wireless technology that transmits an extremely low power signal over a wide swath of radio spectrum, achieving data rates as high as 114 Mbps today. Bluetooth, IEEE 802.11a/b/g, etc.ultra-wideband operates across a wide range... [03 Jul 2008]
Practical Approaches to Channel Estimation and Interference Suppression for OFDM Based UWB Communications
White Paper Ultra-wideband (UWB) communication is a potential technique for future high-speed networks. This paper investigates low complexity signal detection approaches for OFDM based UWB systems. In particular, authors develop practical approaches for... [10 Apr 2008]
Power Allocation for Multi-Band OFDM UWB Communication Networks
White Paper Ultra wideband (UWB) technology has shown significant advantages over other existing ones for short- or medium-range high speed communications. It can adopt different modulation and signaling formats, among which multi-band OFDM is a more favorable... [10 Apr 2008]
Ultra High-Speed and Ultra Low-Noise InP HEMTs
White Paper It then describes two sensors that have been developed using InP HEMTs: a 94-GHz-band passive image sensor and an Ultra-WideBand (UWB) radar operating in the quasi-millimeter waveband of 23 to 29 GHz. [14 Feb 2008]
Joint Scale-Lag Diversity in Mobile Ultra-Wideband Systems
White Paper This paper considers the effect of mobility on an Ultra-WideBand (UWB) direct sequence spread spectrum communication system. Based on a uniform ring of scatterers model, the paper determines that the wideband scattering function has a "Bathtub... [03 Sep 2007]
Scale-Lag Diversity Reception in Mobile Wideband Channels
White Paper Such analysis applies, for example, to Ultra-Wideband (UWB) radio frequency channels and underwater wideband acoustic channels. This paper considers the effect of mobility on a wideband Direct Sequence Spread Spectrum (DSSS) communication system... [31 Aug 2007]
Joint Scale-Lag Diversity in Mobile Ultra-Wideband Systems
White Paper This paper considers the effect of mobility on an Ultra-WideBand (UWB) direct sequence spread spectrum communication system. Based on a uniform ring of scatterers model, the paper determines that the wideband scattering function has a "Bathtub... [13 Aug 2007]
Scale-Lag Diversity Reception in Mobile Wideband Channels
White Paper Such analysis applies, for example, to Ultra-Wideband (UWB) radio frequency channels and underwater wideband acoustic channels. This paper considers the effect of mobility on a wideband Direct Sequence Spread Spectrum (DSSS) communication system... [10 Aug 2007]
Ultra-Wideband (UWB Technology): Enabling High-Speed Wireless Personal Area Networks
White Paper Ultra-WideBand (UWB) technology offers a solution for the bandwidth, cost, power consumption, and physical size requirements of next-generation consumer electronic devices. UWB enables wireless connectivity with consistent high data rates across... [19 Jul 2007]
System Design Considerations for Ultra-Wideband Communication
White Paper This paper discusses issues associated with high-data-rate pulsed ultra-wideband system design, including the baseband processing, transmitter, antenna, receiver, and analog-to-digital conversion. This prototype modulates data with binary phase... [18 Apr 2007]
On the Design of Robust Multiband OFDM Ultra-Wideband Receivers
White Paper 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... [13 Apr 2007]
Precise Timing for Multiband OFDM in a UWB System
White Paper 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... [13 Apr 2007]
