Abstract
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.
Original language | English |
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Title of host publication | 2017 IEEE 85th Vehicular Technology Conference, VTC Spring 2017 - Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781509059324 |
DOIs | |
Publication status | Published - 2017 Nov 14 |
Event | 85th IEEE Vehicular Technology Conference, VTC Spring 2017 - Sydney, Australia Duration: 2017 Jun 4 → 2017 Jun 7 |
Publication series
Name | IEEE Vehicular Technology Conference |
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Volume | 2017-June |
ISSN (Print) | 1550-2252 |
Other
Other | 85th IEEE Vehicular Technology Conference, VTC Spring 2017 |
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Country/Territory | Australia |
City | Sydney |
Period | 17/6/4 → 17/6/7 |
Bibliographical note
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.
Keywords
- Machine-Type Communication (MTC)
- Multi-Sequence Spreading Random Accees (MSRA)
- Multiuser Detection (MUD)
- Other-Cell Interference (OCI)
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics