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MIMO-OFDM

Tags: data

Overview The growing demand of multimedia services and the growth of Internet related contents lead to increasing interest to high speed communications. The requirement for wide bandwidth and flexibility imposes the use of efficient transmission methods that would fit to the characteristics of wideband channels especially in wireless environment where the channel is very challenging. OFDM is modulation method known for its capability to mitigate multipath. In OFDM the high speed data stream is divided into Nc narrowband data streams, Nc corresponding to the subcarriers or subchannels i.e. one OFDM symbol consists of N symbols modulated for example by QAM or PSK.

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Publisher: Helsinki University of Technology
File Format: PDF
Date Published: Apr 11, 2007
Format: White Papers
Topics: Wireless LAN, Mobile - Wireless Communications, Bandwidth Issues

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