Design of a buffer and channel adaptive LTE semi-persistent scheduler for M2M communications

Afrin, N; Brown, J; Khan, JY

Design of a buffer and channel adaptive LTE semi-persistent scheduler for M2M communications

Afrin, N Brown, J

Khan, JY

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Publication Type:: Conference Proceeding
Citation:: IEEE International Conference on Communications, 2015, 2015-September pp. 5821 - 5826
Issue Date:: 2015-09-09

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Field	Value	Language
dc.contributor.author	Afrin, N	en_US
dc.contributor.author	Brown, J https://orcid.org/0000-0002-0698-5758	en_US
dc.contributor.author	Khan, JY	en_US
dc.date.issued	2015-09-09	en_US
dc.identifier.citation	IEEE International Conference on Communications, 2015, 2015-September pp. 5821 - 5826	en_US
dc.identifier.isbn	9781467364324	en_US
dc.identifier.issn	1550-3607	en_US
dc.identifier.uri	http://hdl.handle.net/10453/121337
dc.description.abstract	© 2015 IEEE. One of the major limitations of the LTE system in context of Machine-to-Machine (M2M) communications is the excessive control signalling required for dynamic scheduling of radio resources. Although the queue awareness and link adaptation features of the dynamic scheduler can be very beneficial for M2M traffic as well, these two properties come at a cost of significant control overhead. In this paper, we propose an adaptive semi-persistent LTE uplink scheduler which reduces the control overhead by a significant level and utilizes the uplink capacity efficiently to satisfy the Quality of Service (QoS) requirements of M2M traffic. The concept of Semi-Persistent Scheduling (SPS) has already been implemented for Voice over IP (VoIP) service in the LTE standard. However, we have further developed this into an adaptive SPS scheme which can adapt to the sudden bursts of stochastic M2M traffic flow by utilizing the device buffer information as well as respond to the channel fluctuations caused by fading while satisfying the M2M packet delay constraints. The performance of the proposed adaptive SPS scheme has been compared to an LTE dynamic scheduler using the OPNET simulation software for fading channels. The simulation results demonstrate the adaptive SPS scheme to outperform the dynamic scheduler in terms of both control channel utilization and satisfying QoS requirements of M2M traffic.	en_US
dc.relation.ispartof	IEEE International Conference on Communications	en_US
dc.relation.isbasedon	10.1109/ICC.2015.7249250	en_US
dc.title	Design of a buffer and channel adaptive LTE semi-persistent scheduler for M2M communications	en_US
dc.type	Conference Proceeding
utslib.citation.volume	2015-September	en_US
utslib.for	0999 Other Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	2015-September	en_US

Abstract:

© 2015 IEEE. One of the major limitations of the LTE system in context of Machine-to-Machine (M2M) communications is the excessive control signalling required for dynamic scheduling of radio resources. Although the queue awareness and link adaptation features of the dynamic scheduler can be very beneficial for M2M traffic as well, these two properties come at a cost of significant control overhead. In this paper, we propose an adaptive semi-persistent LTE uplink scheduler which reduces the control overhead by a significant level and utilizes the uplink capacity efficiently to satisfy the Quality of Service (QoS) requirements of M2M traffic. The concept of Semi-Persistent Scheduling (SPS) has already been implemented for Voice over IP (VoIP) service in the LTE standard. However, we have further developed this into an adaptive SPS scheme which can adapt to the sudden bursts of stochastic M2M traffic flow by utilizing the device buffer information as well as respond to the channel fluctuations caused by fading while satisfying the M2M packet delay constraints. The performance of the proposed adaptive SPS scheme has been compared to an LTE dynamic scheduler using the OPNET simulation software for fading channels. The simulation results demonstrate the adaptive SPS scheme to outperform the dynamic scheduler in terms of both control channel utilization and satisfying QoS requirements of M2M traffic.

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http://hdl.handle.net/10453/121337