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On the User-Level Satisfactions with User-Level Utility Functions: A Case Study with Scheduling in TDMA Wireless Networks

Sungyeon KIM, Jang-Won LEE

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Summary :

In most cases in wireless networks, a user has a two-way communication that consists of two sessions: uplink and downlink sessions, and its overall satisfaction to the communication depends on the quality of service of both sessions. However, in most previous approaches in wireless resource allocation, the satisfactions of a user for its uplink and downlink sessions are modeled separately and treated independently, which fails to accurately model user's overall satisfaction to its communication. Hence, in this paper we model user's overall satisfaction to its communication considering both its uplink and downlink sessions. To this end, we propose a novel concept for a utility function to model user's overall satisfaction to its communication, which is called a user-level utility function, considering user's satisfaction to uplink and downlink sessions jointly. To show the appropriateness of our approach, we apply our user-level utility functions to scheduling problems in TDMA wireless networks and show the performance improvement of our approach over the traditional approach that does not treat uplink and downlink sessions of a user jointly.

Publication
IEICE TRANSACTIONS on Communications Vol.E93-B No.4 pp.1037-1040
Publication Date
2010/04/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E93.B.1037
Type of Manuscript
LETTER
Category
Wireless Communication Technologies

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