TY - GEN
T1 - Multi-Cell Performance of Grant-Free and Non-Orthogonal Multiple Access
AU - Abebe, Ameha T.
AU - Lee, Joonsung
AU - Rim, Minjoog
AU - Kang, Chung G.
N1 - Funding Information:
————————————————————————————– This work was supported in part by Institute for Information & communications Technology Promotion (IITP) grant funded by the Korea government (MSIP) (No. R0101-17-244, Development of 5G Mobile Communication Technologies for Hyper-connected smart services) and in part by the Nokia donation program.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/11/14
Y1 - 2017/11/14
N2 - The compressive sensing-based random access may get impacted largely by other cell interference (OCI), which may shatter the sparsity of the received signal model unless the signature space assignment among interfering cells is carefully handled. In this paper, we investigate the performance of multi-sequence spreading-based random access (MSRA) scheme under multi-cell environment. In particular, a grant-free random access scenario is considered to indicate its particular attributes that fundamentally affect the cellular performance. We also give the performance of MSRA in comparison with sparse code multiple access (SCMA). We show that if a proper signature assignment is undertaken, the OCI in MSRA and other CS-based schemes can be modeled as a dispersed noise which does not critically undermine the underlying sparsity.
AB - The compressive sensing-based random access may get impacted largely by other cell interference (OCI), which may shatter the sparsity of the received signal model unless the signature space assignment among interfering cells is carefully handled. In this paper, we investigate the performance of multi-sequence spreading-based random access (MSRA) scheme under multi-cell environment. In particular, a grant-free random access scenario is considered to indicate its particular attributes that fundamentally affect the cellular performance. We also give the performance of MSRA in comparison with sparse code multiple access (SCMA). We show that if a proper signature assignment is undertaken, the OCI in MSRA and other CS-based schemes can be modeled as a dispersed noise which does not critically undermine the underlying sparsity.
KW - Machine-Type Communication (MTC)
KW - Multi-Sequence Spreading Random Accees (MSRA)
KW - Multiuser Detection (MUD)
KW - Other-Cell Interference (OCI)
UR - http://www.scopus.com/inward/record.url?scp=85040596404&partnerID=8YFLogxK
U2 - 10.1109/VTCSpring.2017.8108685
DO - 10.1109/VTCSpring.2017.8108685
M3 - Conference contribution
AN - SCOPUS:85040596404
T3 - IEEE Vehicular Technology Conference
BT - 2017 IEEE 85th Vehicular Technology Conference, VTC Spring 2017 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 85th IEEE Vehicular Technology Conference, VTC Spring 2017
Y2 - 4 June 2017 through 7 June 2017
ER -