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OFDM is a Multicarrier modulation (MCM) technique, which in used in 4G standards. In OFDM systems, symbols are transmitted in parallel on several narrowband subcarriers, which are overlapping and orthogonal to each other. OFDM is superior to other systems because it incurs zero Inter Symbol Interference (ISI) or less amount of ISI which can be compensated by a single tap equalizer. OFDM is advantageous...
Recent wireless standards are expected to offer very high data rate. They use OFDM for high data rate communication. OFDM severely suffers by Inter Carrier Interference (ICI) problems. A common solution for ICI reduction and throughput improvement has been proposed in this paper. This paper presents a novel technique to estimate CFO in Orthogonal Frequency Division Multiplexing systems using Viterbi...
Orthogonal Frequency Division Multiplexing (OFDM) is the technology which is used in 4G based high data rate applications. The standards like Long Term Evaluation (LTE), Long Term Evaluation Advanced (LTE-A) and Wi-MAX promise to offer a high data rate at high mobility. But the mobility destroys the orthogonality of OFDM systems and also reduces the spectral efficiency. The orthogonality loss due...
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