Joint resource allocation for uplink and downlink in wireless networks: A case study with user-level utility functions

Sungyeon Kim, Jang Won Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

29 Citations (Scopus)

Abstract

In most of researches in resource allocation for wireless networks, uplink and downlink problems are considered separately, especially when resources for uplink and downlink are statically partitioned, as in FDD and static TDD systems. However, even in those systems, joint resource allocation for uplink and downlink can improve system efficiency and we study this issue in this paper with the concept of the user-level utility function. In most cases, a user has a two-way communication that consists of two sessions: uplink and downlink sessions and its overall satisfaction to its communication depends on its satisfaction to each of its sessions. To model user's overall satisfaction to its communication, we define a user-level utility function, which is defined as a function of its session-level utility functions. We then formulate and solve the optimization problem with user-level utility functions for cell-level resource scheduling that jointly considers uplink and downlink resource allocation. Simulation results show that our cell-level scheduling in which resource allocation in both uplink and downlink is done jointly outperforms link-level scheduling, in which resource allocation in each of uplink and downlink is done separately in most cases, especially when the asymmetry between uplink and downlink is large.

Original languageEnglish
Title of host publicationVTC Spring 2009 - IEEE 69th Vehicular Technology Conference
DOIs
Publication statusPublished - 2009
EventVTC Spring 2009 - IEEE 69th Vehicular Technology Conference - Barcelona, Spain
Duration: 2009 Apr 262009 Apr 29

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

OtherVTC Spring 2009 - IEEE 69th Vehicular Technology Conference
CountrySpain
CityBarcelona
Period09/4/2609/4/29

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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    Kim, S., & Lee, J. W. (2009). Joint resource allocation for uplink and downlink in wireless networks: A case study with user-level utility functions. In VTC Spring 2009 - IEEE 69th Vehicular Technology Conference [5073637] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECS.2009.5073637