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

Volume

19

Issue

12

fYear

2015

Firstpage

2118

Lastpage

2121

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);

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2015.2489650

Filename

7296627