A new joint feedback and scheduling scheme based on the users´ satisfaction

Author

Yang, Ying ; Xiaohui Chen ; Wang, Weidong

Author_Institution

Univ. of Sci. & Technol. of China, Hefei, China

fYear

2011

fDate

17-19 Aug. 2011

Firstpage

21

Lastpage

25

Abstract

In this paper, a new joint feedback and scheduling scheme based on the users´ satisfaction has been proposed. The scheme divides the users into different groups based on the QOS of users and calculates the users´ satisfaction. Based on the satisfaction, the scheme takes it as scheduling weight of ZFBF-SUS in real-time users. Also, the scheduling weight of non-real-time users has been analyzed. It shows that the PDF of the scheduling weight of non-real-time users is given by gamma distribution. Furthermore, an appropriate feedback threshold has been derived. The scheme tradeoff the users´ satisfaction, system sum-rate and feedback ratio. It reduces the feedback ratio effectively and proves the average of users´ satisfaction with little decreasing of system sum-rate.

Keywords

antenna arrays; diversity reception; feedback; gamma distribution; radio links; scheduling; feedback threshold; gamma distribution; joint feedback; multiple antennas; point-to-point communication; scheduling scheme; transmit diversity gain; users satisfaction; Array signal processing; Joints; MIMO; Quality of service; Real time systems; Scheduling; Vectors; feedback ratio; feedback threshold; users´ satisfaction;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China (CHINACOM), 2011 6th International ICST Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4577-0100-9

Type

conf

DOI

10.1109/ChinaCom.2011.6158113

Filename

6158113