Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Monirosharieh Vameghestahbanati"'
Publikováno v:
IEEE Access, Vol 12, Pp 51166-51175 (2024)
We propose a novel approach to Unsourced Random Access (URA) in which the encoding of each user’s message is associated with the user’s location. The presented reception algorithm is able to resolve message collisions and enhance the multiple use
Externí odkaz:
https://doaj.org/article/215f7f6dcf704e48b255c063e7ca4b70
Autor:
Aditya S. Rajasekaran, Monirosharieh Vameghestahbanati, Mohammad Farsi, Halim Yanikomeroglu, Hamid Saeedi
Publikováno v:
IEEE Access, Vol 7, Pp 162803-162817 (2019)
Sparse code multiple access (SCMA) is a non-orthogonal multiple access (NOMA) uplink solution that overloads resource elements (RE's) with more than one user. Given the success of orthogonal frequency division multiplexing (OFDM) systems, SCMA will l
Externí odkaz:
https://doaj.org/article/0bb184386efa4af28b67cf06129782b1
Publikováno v:
IEEE Transactions on Communications. 69:121-132
Designing multidimensional constellations (MdCs) is an integral part of sparse code multiple access (SCMA). Since the optimal maximum a posteriori (MAP) receiver for SCMA is too complex in most applications, one highly popular technique is the near-o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08fe6c0fc8429818bd380b5563e506bf
https://doi.org/10.1109/tcomm.2020.3031624
https://doi.org/10.1109/tcomm.2020.3031624
Publikováno v:
IEEE Transactions on Vehicular Technology. 68:10278-10282
Sphere decoding (SD) based detection schemes for sparse code multiple access (SCMA) systems have recently received attention due to their promising features. However, the existing SD-based schemes can only be applied to SCMA systems with constellatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9216a92baccf34324120d73fac2d55c
https://doi.org/10.1109/tvt.2019.2932907
https://doi.org/10.1109/tvt.2019.2932907
Publikováno v:
IEEE Communications Surveys & Tutorials. 21:2169-2194
Sparse code multiple access (SCMA) is a class of non-orthogonal multiple access (NOMA) that is proposed to support uplink machine-type communication services. In an SCMA system, designing multidimensional constellation plays an important role in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0caf7e32a4154621b8201404dea5e051
https://doi.org/10.1109/comst.2019.2910569
https://doi.org/10.1109/comst.2019.2910569
Publikováno v:
ICC Workshops
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6aea1e72cf129973cdf9a821404997be
https://doi.org/10.1109/iccworkshops49005.2020.9145403
https://doi.org/10.1109/iccworkshops49005.2020.9145403
Autor:
Halim Yanikomeroglu, Javad Abdoli, Monirosharieh Vameghestahbanati, Ramy H. Gohary, Ian Marsland
Publikováno v:
WCNC
Sparse code multiple access (SCMA) is a potential non-orthogonal multiple access candidate for future wireless systems. The key performance indicators (KPIs) of uplink SCMA multidimensional constellations (MdCs) that should be considered in their des
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a7e8fdb1d8fc3ec0ffa369620600b68
https://doi.org/10.1109/wcnc45663.2020.9120782
https://doi.org/10.1109/wcnc45663.2020.9120782
Autor:
Ian Marsland, Ramy H. Gohary, Monirosharieh Vameghestahbanati, Ebrahim Bedeer, Halim Yanikomeroglu
Publikováno v:
IEEE Communications Letters. 21:2750-2753
In this paper, we propose a reduced-complexity optimal modified sphere decoding (MSD) detection scheme for SCMA. As SCMA systems are characterized by a number of resource elements (REs) that are less than the number of the supported users, the channe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94e6cdcbbde632cfe475b5bc93c74716
https://doi.org/10.1109/lcomm.2017.2747550
https://doi.org/10.1109/lcomm.2017.2747550
Publikováno v:
CWIT
Sparse code multiple access (SCMA) is a promising non-orthogonal multiple access technique for future wireless systems. SCMA systems are sensitive to designing multidimensional constellations. It is crucial to employ a constellation that is suitable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07fea2d9c48f8b8d438050d95e888ed3
https://doi.org/10.1109/cwit.2019.8929897
https://doi.org/10.1109/cwit.2019.8929897