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[  Also see:  Wireless News   OFDM Archive 2003   OFDM Archive 2002   IEEE 802.11 News   ZigBee News  ]

 

OFDM News

OFDM news Welcome to our round-up of the latest OFDM and frequency division technology news and the latest WLAN headlines!




 

Recent OFDM Headlines

FreshPatents.com Apparatus and method for estimating coarse carrier frequency offset for frequency synchronization in ofdm receiver
An apparatus and method for estimating a coarse carrier frequency offset in an OFDM receiver are provided, in which an Fast Fourier Transform (FFT) unit performs FFT for a received signal over one symbol duration and outputs a previously known signal included in the FFT signal, a correlation value calculator...

FreshPatents.com Scattered pilot location detector
The present invention provides a scattered pilot (SP) location detector capable of detecting patterns of SP symbols promptly without using a TMCC signal. The SP location detector comprises a multiplier which multiplies received signals generated by demodulating OFDM modulation signals in which pilot symbols are dispersively disposed in accordance with...

FreshPatents.com Receiver and method for compensating for frequency offset of receiving signal in multi-band ofdm scheme
A multiband Orthogonal Frequency Division Multiplexing (OFDM) receiver, and more particularly, a receiver and method for effectively compensating for a frequency offset of a received signal in a multiband OFDM scheme. The receiver for compensating for a frequency offset of a received signal in an OFDM scheme includes: a numerically...

FreshPatents.com Ofdm channel estimation system and method components
Channel estimation for high mobility OFDM channels is achieved by identifying a set of channel path delays from an OFDM symbol stream including carrier data, inter-channel interference noise and channel noise; determining the average channel impulse response for the identified set of channel path delays in each symbol; generating a...

FreshPatents.com Apparatus for phase noise suppression for ofdm based wlans
Orthogonal frequency division multiplexing (OFDM) has been specified by IEEE 802.11a standard as the transmission technique for high-rate wireless local area networks (WLANs). Performance of an OFDM system, however, is heavily degraded by random Wiener phase noise, which causes both common phase error (CPE) and inter-carrier interference (ICI). A method...

FreshPatents.com Channel sounding in ofdma system
Method and apparatus for determining a downlink channel response in an orthogonal frequency division multiplexing access (OFDMA) system. The method and apparatus uses the uplink quality indication channel for determining the downlink channel response, or uses round trip pilot relay channel sounding. The uplink quality indication channel may comprise modified...

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