Title
A game theoretical model for signature selection in non-cooperative IrLDS-OFDMA system.
Abstract
In irregular low density signature-orthogonal frequency division multiplexing (IrLDS-OFDM) random access system, since no uplink scheduling is performed, each user randomly picks one low density signature (LDS) with different density factor, and spreads the symbols with LDS in the time-frequency domain. In this paper, we propose a game theoretical model to describe this non-cooperative uplink multiple access. Specifically, the original multi-action game is decomposed into several degraded games for simplification. The strategies which achieve Nash equilibrium in the degraded games are then combined with certain rules, and as a result, a SNR threshold based density factor selection method is derived to achieve the Nash equilibrium. Simulations show that the proposed method can achieve better throughput than random signature selection.
Year
DOI
Venue
2017
10.1109/spawc.2017.8227781
PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON EDUCATIONAL MANAGEMENT AND ADMINISTRATION (COEMA 2017)
Keywords
Field
DocType
irregular low density signature,game model,random access
Mathematical optimization,Computer science,Frequency-division multiplexing,Signal-to-noise ratio,Algorithm,Interference (wave propagation),Throughput,Nash equilibrium,Low density,Telecommunications link,Random access
Conference
Volume
ISSN
Citations 
45
2352-5428
0
PageRank 
References 
Authors
0.34
14
4
Name
Order
Citations
PageRank
Lu Zhao16315.63
Neng Ye201.01
Kai Yang313215.85
Xiangyuan Bu4176.22