Title :
Coded Random Access with Distributed Power Control and Multiple-Packet Reception
Author :
Zhonghao Zhang ; Chongbin Xu ; Li Ping
Author_Institution :
Sch. of Commun. & Inf. Eng., Shanghai Univ., Shanghai, China
Abstract :
In this letter, a spatially-coupled low-density parity- check (SC-LDPC) coded ALOHA system with multiuser detection (MUD)-based multiple packet reception (MPR) is studied. A distributed power control scheme based on multiple power levels is proposed for medium and high rate applications. Numerical results show that the proposed scheme can provide noticeable throughput improvement. This improvement is more significant in the cases of fading channels.
Keywords :
access protocols; multiuser detection; parity check codes; power control; MUD-based MPR; SC-LDPC; coded random access; distributed power control scheme; fading channel; multiple power level; multiple-packet reception; multiuser detection; spatially-coupled low-density parity-check coded ALOHA system; Fading; Interference; Multiuser detection; Power control; Signal to noise ratio; Standards; Throughput; LDPC; multiple reception; multiuser detection; power control; spatial coupling;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/LWC.2014.2381663
