S. Ali, N. Rajatheva and W. Saad, "Fast Uplink Grant for Machine Type Communications: Challenges and Opportunities," in IEEE Communications Magazine, vol. 57, no. 3, pp. 97-103, March 2019. doi: 10.1109/MCOM.2019.1800475
Fast uplink grant for machine type communications : challenges and opportunities
|Author:||Ali, Samad1; Rajatheva, Nandana1; Saad, Walid2|
1University of Oulu
|Online Access:||PDF Full Text (PDF, 0.3 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2019060518494
Institute of Electrical and Electronics Engineers,
|Publish Date:|| 2019-06-05
The notion of a fast uplink grant is emerging as a promising solution for enabling massive machine type communication (MTC) in the Internet of Things over cellular networks. By using the fast uplink grant, machine type devices (MTDs) will no longer require RA channels to send scheduling requests. Instead, uplink resources can be actively allocated to MTDs by a base station. In this article, the challenges and opportunities for adopting the fast uplink grant to support MTCs are investigated. First, the fundamentals of fast uplink grant and its advantages over conventional scheduled and uncoordinated access schemes are presented. Then, the key challenges that include the prediction of the set of MTDs with data to transmit, as well as the optimal scheduling of MTDs, are exposed. To overcome these challenges, a two-stage approach that includes traffic prediction and optimized scheduling is proposed. In particular, various solutions for source traffic prediction for periodic MTC traffic are reviewed and novel methods for event-driven traffic prediction are proposed. For optimal allocation of uplink grants, advanced machine learning techniques are presented. By using the proposed solutions, the fast uplink grant has the potential to enable cellular networks to support massive MTCs and effectively reduce the signaling overhead and overcome the delay and congestion challenges of conventional RA schemes.
IEEE communications magazine
|Pages:||97 - 103|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
This research was supported by the Academy of Finland 6Genesis Flagship under Grant 318927; in part, by the Office of Naval Research (ONR) under Grant N00014-15-1-2709; and by the U.S. National Science Foundation under Grants CNS-1836802, CNS-1617896, and ACI-1638283.
|Academy of Finland Grant Number:||
318927 (Academy of Finland Funding decision)
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