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초록
In LTE-A networks, massive MTC (Machine-Type Communication) devices may request RACH (Random Access Channel) access simultaneously. The concurrent requests bring about the congestion of the channel. To solve the problem, 3GPP has adopted overload resolution mechanisms like ACB (Access Class Barring) and EAB (Extended Access Barring). In the mechanisms, barring parameters need to be set dynamically to reshape the access intensity of MTC devices. This paper proposes how to determine a barring parameter in ACB mechanism adaptively as an overload resolution mechanism. The experimental results show that our mechanism improves system performances including access success probability, collision probability, and access delay. © 2016 IEEE.
키워드
Access class barring; LTE-A networks; machine-type communication; random access; Communication channels (information theory); Mobile telecommunication systems; Access class; Collision probability; Concurrent requests; LTE-A networks; Machine type communications; Random access; Random access channel; Resolution mechanisms; Wireless telecommunication systems
- 제목
- Adaptive Access Class Barring for Machine-Type Communications in LTE-A
- 저자
- Moon Jihun; Lim Yujin
- 발행일
- 2016-08
- 유형
- Conference Paper
- 저널명
- International Conference on Ubiquitous and Future Networks, ICUFN
- 권
- 2016-August
- 페이지
- 398 ~ 402
- 언어
- ENG
- 출판사
- IEEE Computer Society
- 분량
- 5 페이지
- ISSN
- P 2165-8528