OFDM over Chip

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OFDM over Chip

Unread postby UCERD.COM » Wed Feb 13, 2013 3:39 pm



Competent employment of radio spectrum consist of  locating modulated carriers as close as possible without causing Inter-Carrier Interference (ICI). Optimally, the bandwidth of each carrier would be adjacent to it's neighbors so there would be no wasted spectrum. In practice, a guard band must be placed between each carrier bandwidth to provide a space where a filter can attenuate an adjacent carrier’s signal. These guard bands are wasted bandwidth.

OFDM is a multi-carrier system where data bits are encoded to multiple sub-carriers.
Unlike single carrier systems, all the frequencies are sent simultaneously in time. OFDM offers several advantages over single carrier system like better multi path effect immunity, simpler channel equalization and relaxed timing acquisition constraints. But it is more susceptible to local frequency offset and radio front-end non-linearity.

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relatedwork: OFDM over Chip

Unread postby amna haider » Wed Mar 06, 2013 4:19 am

OFDM for wireless multimedia communications

Performance of CDMA/OFDM for mobile communication system
http://xa.yimg.com/kq/groups/24534646/2 ... 528524.pdf


OFDM and MC-CDMA for broadband multi-user communications, WLANs and broadcasting
http://eprints.ecs.soton.ac.uk/8228/1/S ... 17,_19.pdf

FPGA implementation of an OFDM PHY


On the design of an FPGA-Based OFDM modulator


A real-time 4-stream MIMO-OFDM transceiver: system design, FPGA implementation, and characterization


Implementation of OFDM modem for the physical layer of IEEE 802.11 a standard based on Xilinx Virtex-II FPGA
http://spectrum.library.concordia.ca/7949/1/MQ91079.pdf

Realisation of a real-time 12.1 Gb/s optical OFDM transmitter and its application in a 109 Gb/s transmission system with coherent reception
http://129.69.175.144/publications/pub_ ... tter09.pdf

On the design of an FPGA-Based OFDM modulator
http://ccc.inaoep.mx/~rcumplido/papers/ ... 802.11.pdf

Real time implementation on FPGA of an OFDM based wireless LAN modem extended with adaptive loading
http://www.imec.be/esscirc/ESSCIRC2002/PDFs/C29.04.pdf

A pipelined implementation of OFDM transmission on reconfigurable platforms

FPGA implementation of an iterative receiver for MIMO-OFDM systems
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