A Hybrid Optimization-Based Technique for Channel Estimation in OFDM System: A Parametric Approach
نویسندگان
چکیده
The performance of OFDM system depends on the how efficient channel estimation is, which directly impactsits bit error rate (BER). In this research work, novel technique pseudo-pilot aided is usedits with least square and Recursive Least Squares approach. proposed technique, for Pseudo-pilot used in over AWGN fading channels. A hybridization has been implemented to alleviate signals. hybrid optimization approach estimated output optimum solution. combination two techniques particle swarm (PSO) Moth Flame Optimization (MFO) method that rate. To get more solutions (reducing BER) trained neural network. weighted scheme are compared verified using computerized simulation carried out Matrix Laboratory software. able achieve low BER PSO 1.004 × 10−7 whereas (PSO + MFO) 6.275 10−8 at 18 dB SNR. After training whole done BPNN will further reduce while increasing By BPNN, 1.243 It means optimize BERs, help increase process as well capacity reduces losses transmission from one end other end.
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ژورنال
عنوان ژورنال: Wireless Personal Communications
سال: 2022
ISSN: ['1572-834X', '0929-6212']
DOI: https://doi.org/10.1007/s11277-022-10060-1