Open AccessQoS fairness‐based slot allocation using backlog info in satellite‐based sensor systems
Author(s) -
Han Han,
Lin Yuan,
Dong Feihong,
Wang Jingchao
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2015.0813
Subject(s) - quality of service , computer science , fairness measure , max min fairness , computer network , term (time) , throughput , mathematical optimization , resource allocation , telecommunications , mathematics , wireless , physics , quantum mechanics
A QoS (quality of service) fairness‐based slot allocation algorithm is proposed for sink stations in satellite‐based sensor systems, which considers the statistical traffic rate and the instantaneous backlog info. Different from the traditional throughput fairness, the considered QoS fairness focuses on the long‐term fairness, not the short‐term fairness. The delay performance is taken as an example of QoS. With the help of stochastic gradient theory, a unique QoS‐aware factor is deduced and used to direct the reallocation of the residual slots after basic allocation. Numerical simulations show that the proposed allocation could improve the long‐term fairness in a large ratio, compared with the allocation for short‐term fairness.