near optimal pilot design schemes in OFDM systems with sparse channel estimation
Compressed sensing (CS), massive multiple input– multiple-output (MIMO), pilot design, sparse channel estimation, cyclic difference set
Pilot design schemes based on MIP requires a sufficient condition for the optimal pilot pattern generated from the CDS which depends on CIR. Since in most practical OFDM systems CIR does not exist thus optimal patterns are difficult to obtain in such conditions. To obtain a near optimal pilot pattern we propose three pilot design schemes .The first two schemes are based on stochastic search and other one is based on iterative group shrinkage. Simulation results shows that the proposed schemes converge much faster and out of which SSS and SPS schemes outperform the IGS schemes. Although both SSS and SPS result in similar Q values the former converges much faster than the latter. BER and MSE are also computed for these pilot designs.
"near optimal pilot design schemes in OFDM systems with sparse channel estimation", IJSDR - International Journal of Scientific Development and Research (www.IJSDR.org), ISSN:2455-2631, Vol.2, Issue 2, page no.11 - 14, February-2017, Available :https://ijsdr.org/papers/IJSDR1702004.pdf
Volume 2
Issue 2,
February-2017
Pages : 11 - 14
Paper Reg. ID: IJSDR_170035
Published Paper Id: IJSDR1702004
Downloads: 000347046
Research Area: Engineering
Country: cherthala, kerala, India
ISSN: 2455-2631 | IMPACT FACTOR: 9.15 Calculated By Google Scholar | ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 9.15 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator
Publisher: IJSDR(IJ Publication) Janvi Wave
