relation: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4695/ title: A Random Access Protocol for Massive MIMO: The Adaptive ACB based Collision Resolution creator: Tran, Huu Ha creator: Duong, Chu Huy creator: Trinh, Anh Vu creator: Vu, Xuan Thang creator: Hoang, Gia Hung subject: Communications description: mMTC (massive Machine Type Communications) is one of the key components in beyond 5G networks for smart manufactures and the fourth industrial revolution. Due to the massive connectivity in mMTC, it is vital to have an efficient random access protocol. In the paper, we propose a new random access technique called the Adaptive ACB (A-ACB) to minimize collisions. We show that, in terms of successfully resolved probability, the proposed A-ACB always outperforms the ACBPC protocol [1] and surpasses the SUCRe protocol [2] when the number of collisions per preamble is large. In addition, the proposed protocol achieves better fairness than the SUCRe but less than the ACBPC. Finally, numerical results are provided to demonstrate the effectiveness of the proposed random access protocol. date: 2021-12-21 type: Conference or Workshop Item type: NonPeerReviewed identifier: Tran, Huu Ha and Duong, Chu Huy and Trinh, Anh Vu and Vu, Xuan Thang and Hoang, Gia Hung (2021) A Random Access Protocol for Massive MIMO: The Adaptive ACB based Collision Resolution. In: NICS 2021, 21-12-2021, Le Qui Don University, Hanoi, Viet nam. (In Press) relation: http://nafosted-nics.org