Title :
A Simple Random Access Scheme With Multilevel Power Allocation
Author :
Huifa Lin ; Ishibashi, Koji ; Won-Yong Shin ; Fujii, Takeo
Author_Institution :
Adv. Wireless & Commun. Res. Center, Univ. of Electrocommun., Tokyo, Japan
Abstract :
This letter proposes a decentralized power allocation approach for random access with capabilities of multi-packet reception (MPR) and successive interference cancellation (SIC). Considering specific features of SIC, a bottom-up per-level algorithm is proposed to obtain discrete transmission power levels and the corresponding probabilities. Comparing with the conventional power allocation scheme with MPR and SIC, our approach significantly improves the system sum rate; this is confirmed by computer simulations.
Keywords :
interference suppression; probability; radio access networks; radiofrequency interference; resource allocation; telecommunication power management; MPR; SIC; bottom-up per-level algorithm; decentralized power allocation approach; discrete transmission power levels; multilevel power allocation; multipacket reception; power allocation scheme; random access scheme; successive interference cancellation; system sum rate; Decoding; Interference; Optimization; Resource management; Signal to noise ratio; Silicon carbide; Throughput; Decentralized power allocation; random access; successive interference cancellation (SIC);
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2489650
