[PDF] Top 20 Performance Improvement of Coded OFDM Communication System in AWGN Channel

... the system rate, and this is because the very large number of transmitted data with respect to the number of added zero ...BER performance in a certain range of SNR due to the same previous reason as shown ... See full document

... mobile system requires a several aspects as the needs of increasing rate, the mobile character of terminal and a context congestion of ...the OFDM is adapted to respond on the posed ...[1].The ... See full document

... Wireless communications is an emerging field, which has seen growing rapidly in the last several years. The large number of upgrade technology of mobile phone, Wireless Local Area Networks (WLAN) and the exponential ... See full document

... used communication system due to its high transmission rate and robustness against multipath ...MIMO-OFDM, channel estimation plays a major ...different channel estimation methods, ... See full document

... of communication systems driven by OFDM and this will be referred to as ...PAPR performance of the HW-OFDM system against that of FFT-OFDM for pilot- assisted OFDM ... See full document

... Digital modulation techniques contribute to the evolution of our mobile wireless communications by increasing the speed, capacity, performance as well as the quality of the wireless network. This paper focuses on ... See full document

... the Coded OFDM performance in terms of SE and throughput for different modulation and code rate schemes over a fading ...NLMS channel estimator is considered because of its low ...of ... See full document

... (OFDM-IDMA) system for next generation wireless communication ...in OFDM system Conventional OFDM/QAM systems are robust for multi-path channels due to the cyclically prefixed ... See full document

... (UWB) channel suffers seriously from realis- tic ...BER performance of indoor UWB based Orthogonal Frequency Division Multiplexing (OFDM) ...UWB system. The performance of the proposed ... See full document

... need, communication engineers have combined technologies suitable for high rate transmission with forward error correction ...of OFDM are its multi-path delay spread tolerance and efficient spectral usage ... See full document

... complexity. OFDM can be used in conjunction with a Multiple-Input Multiple-Output (MIMO) transceiver to increase the diversity gain and/or the system capacity by exploiting spatial ...the OFDM ... See full document

... output OFDM signal is encoded through LDPC encoder and the coded output is the given input to an electro optic intensity modulator (EOIM) and the EOIM output is then transmitted over an atmospheric ... See full document

... wireless communication system considering AWGN ...the performance analysis showed that model works well on Signal to Noise Ratio (SNR) less than ...block coded multi-user W-CDMA ... See full document

... the performance of multiple antenna chan- nel codes in a PLC scenario is studied ...rate performance of majorly known multiple antenna channel coded OFDM schemes ...line channel ... See full document

... wireless communication multicarrier transmission has become an attractive technique that utilized for high data rate ...transmission. OFDM one of them used for high rate transmission. OFDM ... See full document

... BER performance but is highly complex than LDPC and ...fading channel, the performance improvement on using FEC codes is very poor and is unsuitable for MIMO-OFDM ...BER ... See full document

... efficiency OFDM modulation technique and LDPC coding will be a good candidate for high speed broadband wireless ...BER performance of the Low Density Parity Check Coding- Coded Orthogonal Frequency ... See full document

... evolved. OFDM is one of such technique. OFDM is a parallel transmission scheme, where a high-rate serial data stream will be splitted into a set of low-rate sub streams, each of which will be modulated on a ... See full document

... Mbps. OFDM involves Frequency Division Multiplexing and Multicarrier ...well OFDM the subcarriers are designed to be orthogonal this allow subcarriers to overlap and save the bandwidth that achieving high ... See full document

... conventional OFDM systems, the DFT-spread OFDM leads to a diversity gain in frequency- selective channel, and it combines the advantages of single- carrier transmission, like constant signal ... See full document