2021
DOI: 10.1080/00207217.2021.1941292
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Robust conjugate-gradient based LAS detector for massive MIMO systems

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Cited by 3 publications
(6 citation statements)
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“…Using the Fletcher-Reeves method [21], conjugate directions are formed and developed. Algorithm 1 [23] describes the CGLAS signal identification algorithm.…”
Section: Optimization Approachmentioning
confidence: 99%
“…Using the Fletcher-Reeves method [21], conjugate directions are formed and developed. Algorithm 1 [23] describes the CGLAS signal identification algorithm.…”
Section: Optimization Approachmentioning
confidence: 99%
“…Before calculating v 2kÀ1 and v 2k , the partial solution vector x2kþ1:2N t ¼ ½x 2kþ1 , …, x2N t is already available. It is clear from (11) and ( 12) that v 2kÀ1 depends on x2k , which can be obtained from v 2k . Therefore, in this case, v 2k and v 2kÀ1 cannot be determined simultaneously.…”
Section: Reducing the Initialization Complexity Of 1-las/rtsmentioning
confidence: 99%
“…The ð2k À 1, 2kÞ th element of R matrix is equal to zero, that is, r 2kÀ1,2k ¼ 0 for k ¼ 1, 2, …, N t [30]. Thus, (11) can be modified as follows:…”
Section: Reducing the Initialization Complexity Of 1-las/rtsmentioning
confidence: 99%
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“…Further, performance improvement can be achieved by adding a symbol correction stage after an MMSE detector. Several such correction algorithms are used in application in large‐scale MIMO detection such as reactive tabu search (RTS), 24 layered tabu search (LTS), 25 likelihood ascent search (LAS), 26 sequential and global likelihood ascent search 27 conjugate gradient LAS (CGLAS), 28 and so on. Among these algorithms, we have considered LAS 26 method for the massive MIMO detection due to its lower computational complexity and terminates faster than other algorithms.…”
Section: Introductionmentioning
confidence: 99%