Title :
Representation of user satisfaction and fairness evaluation for user-centric dynamic spectrum access
Author :
Tran, Ha Nguyen ; Hasegawa, Mikio ; Murata, Yoshitoshi ; Harada, Hiroshi
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol. (NICT), New Generation Wireless Commun. Res. Center, Yokosuka, Japan
Abstract :
User-centric dynamic spectrum access (DSA) in heterogeneous cognitive networks is an approach which allows cognitive radio (CR) to select and utilize radio resource according to user preferences. Defining a utility function corresponding to different preferences is required for the implementation and evaluation of a user-centric DSA scheme. This paper proposes a numerical representation method of common user preferences, and a numerical representation method of user satisfaction corresponding to multiple preferences. User satisfaction is defined based on the amount of received service and the perceived fairness to the service, it is used as a utility function to evaluate the affects of a user-centric DSA scheme to network load and to the fairness of resource sharing among CRs.
Keywords :
radio networks; spread spectrum communication; cognitive radio; fairness evaluation; radio resource; resource sharing; user satisfaction; user-centric dynamic spectrum access; Bandwidth; Chromium; Cognitive radio; Communications technology; Decision making; Energy consumption; Radio access networks; Resource management; Throughput; Wireless communication; dynamic spectrum access; fairness evaluation; network load; user centric; user preference;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
DOI :
10.1109/PIMRC.2009.5450191
