2021/10/15 by Zhengchuan Chen, Chen, Zhengchuan, Yifan Feng +9
Engineering · #Advanced Wireless Communication Technologies #FOS: Computer and information sciences #Information Retrieval (cs.IR) #Information Theory (cs.IT) #IoT Networks and Protocols #Wireless Body Area Networks
paper · pdf · doi:10.48550/arxiv.2110.08166
openalex publication_date 2021/10/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Associated with multi-packet reception at the access point, irregular repetition slotted ALOHA (IRSA) holds a great potential in improving the access capacity of massive machine type communication systems. Considering the time-frequency resource efficiency, K = 2 (multi-packet reception capability) may be the most suitable scheme for scenarios that allow smaller resource efficiency in exchange for greater throughput. In this paper, we analytically derive an optimal transmission probability distribution for IRSA with K = 2, which achieves a significant higher load threshold than the existing benchmark distributions. In addition, the energy efficiency optimization in terms of the maximum repetition rate is also presented.