Back to Search
Start Over
Random Access Protocols for Massive MIMO.
- Source :
-
IEEE Communications Magazine . May2017, Vol. 55 Issue 5, p216-222. 7p. - Publication Year :
- 2017
-
Abstract
- 5G wireless networks are expected to support new services with stringent requirements on data rates, latency and reliability. One novel feature is the ability to serve a dense crowd of devices, calling for radically new ways of accessing the network. This is the case in machine-type communications, but also in urban environments and hotspots. In those use cases, the high number of devices and the relatively short channel coherence interval do not allow per-device allocation of orthogonal pilot sequences. This article addresses the need for random access by the devices to pilot sequences used for channel estimation, and shows that Massive MIMO is a main enabler to achieve fast access with high data rates, and delay-tolerant access with different data rate levels. Three pilot access protocols along with data transmission protocols are described, fulfilling different requirements of 5G services. [ABSTRACT FROM PUBLISHER]
- Subjects :
- *5G networks
*MIMO systems
*BROADBAND communication systems
*INTERNET
*DYNAMICS
Subjects
Details
- Language :
- English
- ISSN :
- 01636804
- Volume :
- 55
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- IEEE Communications Magazine
- Publication Type :
- Academic Journal
- Accession number :
- 123209297
- Full Text :
- https://doi.org/10.1109/MCOM.2017.1600477CM