Contention Based Access for Machine-Type Communications over LTE

Author

Zhou, Kaijie ; Nikaein, Navid ; Knopp, Raymond ; Bonnet, Christian

fYear

2012

fDate

6-9 May 2012

Firstpage

1

Lastpage

5

Abstract

To enable the efficient and low latency machine-type communications (MTC) over long term evolution (LTE), a contention based access (CBA) method is proposed. With CBA, UEs transmit packets on the randomly selected resource without having any UE specific scheduled resources. To address the problem of collision caused by CBA in high traffic load, eNB exploits the MU-MIMO detection technique to decode radio network temporary identifier (RNTI) of the collided UEs and use this information to perform a regular scheduling in subsequent subframe. Detailed low layer signaling enhancement to implement CBA technique in current LTE specification (Rel. 10) is also presented. Simulation results demonstrate that the CBA significanlty outperforms the existing uplink channel access methods.

Keywords

Long Term Evolution; MIMO communication; decoding; probability; radio receivers; scheduling; telecommunication signalling; telecommunication traffic; CBA method; LTE; Long Term Evolution; MTC; MU-MIMO detection technique; RNTI decoding; UE collision; UE packet transmission; UE specific scheduling resource; contention based access method; eNB exploitation; low layer signaling enhancement; machine-type communicatio; packet receiving probability; radio network temporary identifier decoding; randomly selected resource; scheduling; traffic load; uplink channel access method; Antennas; Indexes; Radio access networks; Resource management; Scheduling; Strontium; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2012 IEEE 75th

Conference_Location

Yokohama

ISSN

1550-2252

Print_ISBN

978-1-4673-0989-9

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2012.6240150

Filename

6240150