An Efficient Contention Resolution Scheme for Massive IoT Devices in Random Access to LTE-A Networks
Long-Term Evolution-Advanced (LTE-A) networks have been regarded as having great potential to support the Internet of Things (IoT). However, the high probability of preamble collisions when massive numbers of IoT devices try to access the network within a short period has become a significant proble...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2018-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8528405/ |
| _version_ | 1819172042852794368 |
|---|---|
| author | Kyungjun Lee Ju Wook Jang |
| author_facet | Kyungjun Lee Ju Wook Jang |
| author_sort | Kyungjun Lee |
| collection | DOAJ |
| description | Long-Term Evolution-Advanced (LTE-A) networks have been regarded as having great potential to support the Internet of Things (IoT). However, the high probability of preamble collisions when massive numbers of IoT devices try to access the network within a short period has become a significant problem. In this paper, we propose a new scheme to efficiently handle the initial access contention for massive numbers of IoT devices in LTE-A networks. The proposed scheme divides an entire preamble set into <inline-formula> <tex-math notation="LaTeX">$k$ </tex-math></inline-formula> subgroups; then, contention resolution is performed in each subgroup independently in a parallel and pipelined manner. Simulation results show that our scheme leads to considerable improvement in terms of average access delay and standard deviation of access delays without increasing blocking probability. Moreover, utilization of preamble resources is greatly improved by reducing the number of random access slots, where only a few devices participate in preamble selection. |
| first_indexed | 2024-12-22T20:00:54Z |
| format | Article |
| id | doaj.art-0edf5addd273401797d26b551d8d6953 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-22T20:00:54Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-0edf5addd273401797d26b551d8d69532022-12-21T18:14:17ZengIEEEIEEE Access2169-35362018-01-016671186713010.1109/ACCESS.2018.28764388528405An Efficient Contention Resolution Scheme for Massive IoT Devices in Random Access to LTE-A NetworksKyungjun Lee0https://orcid.org/0000-0001-7976-0704Ju Wook Jang1Department of Electronic Engineering, Sogang University, Seoul, South KoreaDepartment of Electronic Engineering, Sogang University, Seoul, South KoreaLong-Term Evolution-Advanced (LTE-A) networks have been regarded as having great potential to support the Internet of Things (IoT). However, the high probability of preamble collisions when massive numbers of IoT devices try to access the network within a short period has become a significant problem. In this paper, we propose a new scheme to efficiently handle the initial access contention for massive numbers of IoT devices in LTE-A networks. The proposed scheme divides an entire preamble set into <inline-formula> <tex-math notation="LaTeX">$k$ </tex-math></inline-formula> subgroups; then, contention resolution is performed in each subgroup independently in a parallel and pipelined manner. Simulation results show that our scheme leads to considerable improvement in terms of average access delay and standard deviation of access delays without increasing blocking probability. Moreover, utilization of preamble resources is greatly improved by reducing the number of random access slots, where only a few devices participate in preamble selection.https://ieeexplore.ieee.org/document/8528405/Internet of Thingscontention resolutionLTE-advancedmachine-to-machine (M2M) communicationsMTCrandom access procedure |
| spellingShingle | Kyungjun Lee Ju Wook Jang An Efficient Contention Resolution Scheme for Massive IoT Devices in Random Access to LTE-A Networks IEEE Access Internet of Things contention resolution LTE-advanced machine-to-machine (M2M) communications MTC random access procedure |
| title | An Efficient Contention Resolution Scheme for Massive IoT Devices in Random Access to LTE-A Networks |
| title_full | An Efficient Contention Resolution Scheme for Massive IoT Devices in Random Access to LTE-A Networks |
| title_fullStr | An Efficient Contention Resolution Scheme for Massive IoT Devices in Random Access to LTE-A Networks |
| title_full_unstemmed | An Efficient Contention Resolution Scheme for Massive IoT Devices in Random Access to LTE-A Networks |
| title_short | An Efficient Contention Resolution Scheme for Massive IoT Devices in Random Access to LTE-A Networks |
| title_sort | efficient contention resolution scheme for massive iot devices in random access to lte a networks |
| topic | Internet of Things contention resolution LTE-advanced machine-to-machine (M2M) communications MTC random access procedure |
| url | https://ieeexplore.ieee.org/document/8528405/ |
| work_keys_str_mv | AT kyungjunlee anefficientcontentionresolutionschemeformassiveiotdevicesinrandomaccesstolteanetworks AT juwookjang anefficientcontentionresolutionschemeformassiveiotdevicesinrandomaccesstolteanetworks AT kyungjunlee efficientcontentionresolutionschemeformassiveiotdevicesinrandomaccesstolteanetworks AT juwookjang efficientcontentionresolutionschemeformassiveiotdevicesinrandomaccesstolteanetworks |