1 research outputs found
An Optimal Stopping Approach to Cell Selection in 5G Networks
Initial cell search and selection is one of the first few essential steps
that a mobile device must perform to access a mobile network. The distinct
features of 5G bring new challenges to the design of initial cell search and
selection. In this paper, we propose a load-aware initial cell search and
selection scheme for 5G networks. The proposed scheme augments the existing
pure received power based scheme by incorporating a new load factor broadcast
as part of system information. We then formulate a throughput optimization
problem using the optimal stopping theory. We characterize the throughput
optimal stopping strategy and the attained maximum throughput. The results show
that the proposed cell search and selection scheme is throughput optimal with a
carefully optimized connection threshold.Comment: 10 pages, 6 figures, submitted for publicatio