- CNET NETWORKS UK BUSINESS SITES:
- atlarge.com
- BNET UK
- silicon.com
- SmartPlanet.com
- ZDNet.co.uk
883 stories on
Sort by: Date | Relevance
News There are also technical challenges to overcome, including interference, scalability and management issues, and the cost to end-users, which likely won't drop below $100 per unit until 2009 or 2010. The stars are aligning to create a market that's...
[23 Apr 2008]
whitepaper Radio interference remains a core concern among Wireless LAN (WLAN) users, network administrators, and operations staff alike. After all, the potential for interference is a fact of life in the unlicensed bands where WLANs operate, and, even worse...
[11 Apr 2008]
whitepaper The recent history of Ultrawideband communications technology has seen great debate over whether these UWB cause unacceptable interference to existing users of the same and nearby bands. Building on the IEEE 802.15.2 Recommended Practice and the...
[11 Apr 2008]
whitepaper The loss of orthogonality among subcarriers causes inter-carrier interference (ICI), which affects both channel estimation and detection of OFDM data symbols. Orthogonal Frequency Division Multiplexing OFDM), which is a multicarrier modulation...
[11 Apr 2008]
whitepaper In this paper, successive intracell interference cancellation (IIC) of the wideband-code division multiple access (W-CDMA) signal at the mobile unit is considered. Three new interference cancellation techniques suitable for the downlink of any CDMA...
[10 Apr 2008]
whitepaper Parallel interference cancellation (PIC) is a promising detection technique for code division multiple access (CDMA) systems. It has previously been shown that the weighted multi-stage PIC can be seen as an implementation of the steepest descent...
[10 Apr 2008]
whitepaper In particular, authors develop practical approaches for channel estimation and interference suppression. Ultra-wideband (UWB) communication is a potential technique for future high-speed networks. This paper investigates low complexity signal...
[10 Apr 2008]
whitepaper A frequency-hopped code-division multiple-access system can adapt to the different interference levels in hopping patterns and assign the slots different bit rates to increase the system capacity. The algorithms that achieve the most system...
[10 Apr 2008]
whitepaper The generalization quantifies a cost associated with in-cell interference by accounting for the lack of interference from the desired user on the total interference and by considering the impact of the frequency reuse number on the out-of cell...
[10 Apr 2008]
whitepaper Often, the mix of access points (APs) in the WLAN can further erode throughput as overlapping RF footprints create radio interference. One way to mitigate the impact of RF interference is with embedded cognitive radio software that enables resident...
[10 Apr 2008]
whitepaper Most systems rely on the use of Orthogonal Frequency Division Multiplexing (OFDM) because of its capability to elegantly cope with multi-path interference. In recent years, wireless indoor networks have received a lot of scientific and industrial...
[10 Apr 2008]
whitepaper Then, the interference reduction due to smart antennas, power control, and discontinuous transmission can be directly translated into capacity gain. Smart antenna is considered as one of the most effective means for enhancing wireless system capacity.
[10 Apr 2008]
whitepaper The interference and co-existence issues that exist with co-located Bluetooth and WLAN devices are amongst the most difficult in radio design because of the low power, cost and size constraints. As popular wireless technologies like Bluetooth and...
[10 Apr 2008]
whitepaper The time variation of the channel during one OFDM frame destroys the orthogonality of different sub-carriers and generates power leakage among the subcarriers, known as Inter-Carrier Interference (ICI).
[10 Apr 2008]
whitepaper These tools improve on existing mechanisms by analyzing link-layer sequence numbers, deducing link congestion based on retransmission traces and by detecting cross-channel interference based on observing sets of neighboring or overlapping channels...
[10 Apr 2008]
whitepaper It is primarily used in high bit rate systems to mitigate inter-symbol interference (ISI) caused due to de- lay spread. Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier block modulation scheme suitable for wireless communications.
[03 Apr 2008]
News In a renewed effort to get the FCC on board with the idea, Google filed a six-page letter late last week that attempts to erase lingering concerns from TV broadcasters and microphone manufacturers about harmful interference caused by the entry of...
[25 Mar 2008]
whitepaper Cellular services have been ineffective in providing defense and disaster recovery communications. Overloads that occur after disasters cause degraded resource access to all users, no matter how important.
[24 Mar 2008]
whitepaper The challenge was to use internationally recognized industry standards to encrypt documents and ensure compliance with the Data Protection Act and avoid interference with normal workflows, both internally and within partner organizations, while...
[24 Mar 2008]
whitepaper Through many simulations, it shows that the algorithm outperforms the IEEE 802.11 standard both in the static and dynamic network and also in high interference environments. This paper proposes a MAC protocol which improves disadvantages of the...
[24 Mar 2008]
Sort by: Date | Relevance
Copyright ©1995-2008 CNET Networks, Inc. All rights reserved. Top of page
