Sponsored White Papers, Webcasts, and Downloads
ZDNet Resources
- Bandwidth Efficient Channel Estimation Using Super-Imposed Pilots in OFDM Systems
- This paper proposes a channel estimation algorithm using super-imposed pilots for OFDM systems. The pilot symbols are added linearly to the modulated data symbol at a fraction of the total transmit power, making the method spectrally efficient. This paper presents a series of iterative and non-iterative receivers in which complexity...
- Tags: Bandwidth, Complexity, Performance, IEEE, Pilot Symbol, OFDM, Performance Management, Wireless, Human Resources, Workforce Management
- White papers 2006-10-05
Additional Resources
- Study: Apple logo stimulates the brain
- Study: Apple logo stimulates the brainPeople Exposed To Windows Logo, HoweverAre still drooling on their keyboards and uttering incoherently.Might stimulate the stomach...but the brain?;-)What was the creativity test?If the test was: create your own watery looking logo, then, it may be true...RE: Study: Apple logo stimulates the brainThis could be...
- Tags: Microsoft Windows, Apple Inc., Apple Logo, IBM Corp.
- Discussion threads 2008-10-22
- Phone Pilot (S60 3rd)-Updated 2.52 (Mobile)
- BriefingPhonePilot is an all-in-one call manager + anwering machine + NO BEEP call recorder on the market. You will get most features from PhonePilot at very economical price! Integrates all popular call control features on the market, including: black/white list filter, call diverter, answering machine and auto SMS responder.Unlimited time,...
- Tags: Response, Phone, Recorder, Mobile, Phonebook, BriefingPhonePilot, Telecommunications
- Software downloads 2007-10-30
- On the Reduced Complexity Interleaving Method for OFDM PAPR Reduction
- Many methods for OFDM Peak to Average Power Ratio reduction have been proposed during approximately last ten years. There are nowadays many research efforts on PAPR reduction methods with reduced computational complexity. The method presented in this paper is based on adaptive symbol selection principle, with several replicas of signal...
- Tags: Method, OFDM, Wireless And Mobility
- White papers 2006-09-01
- A Pseudorandom Postfix OFDM Modulator - Semi-Blind Channel Estimation and Equalization
- This paper details a new Orthogonal-Frequency-Division-Multiplexing OFDM modulator based on the use of a PseudoRandom Postfix PRP-OFDM and discusses low-complexity equalization and channel estimation/tracking architectures. The main property of this new modulation scheme is the ability to estimate and track the channel variations semi-blindly using order-one statistics of the received...
- Tags: IEEE, OFDM, Wireless
- White papers 2006-03-01
- Pilot-Symbol-Aided Iterative Channel Estimation for OFDM-Based Systems
- This paper proposes a pilot-symbol-aided iterative channel estimation for coded OFDM-based systems. The authors use the symbol APP provided by the channel decoder to form groups of virtual pilots. According to their reliabilities, the authors combine these groups to improve the channel estimation. The paper also compares the proposed algorithm...
- Tags: Channel Estimation, OFDM, Engineering, Wireless
- White papers 2005-08-16
- Pilot-to-Data Power Ratio for Maximizing the Capacity of MIMO-OFDM
- Orthogonal frequency division multiplexing OFDM can be used with a multiple-input multiple-output MIMO system to improve communication quality and capacity. Pilot-symbol-aided or decision-directed channel estimation must be used to track the variations of the channel. However, while pilot symbols facilitate channel estimation, they reduce the transmit energy for data symbols...
- Tags: MIMO-OFDM, Channel Estimation, OFDM, Wireless
- White papers 2004-11-22
- Mental Miracle 1.0 1.0 (Mobile)
- Great Magic Trick For Your Palm Pilot!Read minds. Know the image someone has drawn on screen and is merely thinking of using your Palm Pilot. The spectator draws ANY number, image, or symbol on the Palm Pilot and then visualizes it in their mind.The magician then reads the spectators mind...
- Tags: Mobile, Palm Inc., Spectator, Palm Pilot, Image, SharperMinds, Palm OS, Handhelds, Smart Phones, Mobile Operating Systems, Operating Systems, Software, Hardware, Consumer Electronics, Personal Technology
- Software downloads 2003-07-30
- Mobile Terminal Positioning Using Data Symbols to Mitigate the Influence of Noise in Multi Carrier Modulation
- Positioning service in down-link cellular mobile system is expected. In the positioning of multi carrier modulation, the location of the Mobile Terminal MT is estimated by using the correlation of the pilot symbol known to MT. However, the accuracy of the detected location is not always sufficient in a multipath...
- Tags: Mobile, Positioning, Carrier Modulation, Branding, Marketing
- White papers
- Blind Estimation of the Carrier Frequency Offset in OFDM Systems
- This paper presents a novel approach for carrier frequency offset estimation in OFDM systems. Before they enter the OFDM system, the information bearing symbols are segmented into blocks so that each even indexed block shares one common symbol with the previous block. This redundancy allows for the frequency offset estimation...
- Tags: Estimation, OFDM, Wireless
- White papers
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