Downlink performance and optimization of relay-assisted cellular networks

Shiang Jiun Lin*, Wern Ho Sheen, Chia-Chi Huang

*Corresponding author for this work

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

7 Scopus citations

Abstract

Relay-assisted cellular network is one of the most promising architectures for the next-generation mobile cellular system, which is envisaged to support high-rate multimedia services in a wide variety of environments: indoors, outdoors, low-mobility, high-mobility, etc. This work aims to investigate the theoretical performance of downlink transmissions of relayassisted cellular networks in the multi-cell environment with optimized system parameters. A genetic-algorithm based approach is proposed for joint multi-cell optimization of system parameters including locations of relay stations, path selection, reuse pattern and resource allocation to maximize the system spectral efficiency. Two types of quality of end-user experience (QoE) (fixed-bandwidth allocation and fixed-throughput allocation) are investigated along with two path selection schemes (spectral efficiency-based and SINR-based). Numerical results show that with the deployment of relay stations, the system performance is significantly improved over the conventional cellular networks.

Original languageEnglish
Title of host publication2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings
DOIs
StatePublished - 22 Sep 2009
Event2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Budapest, Hungary
Duration: 5 Apr 20098 Apr 2009

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)1525-3511

Conference

Conference2009 IEEE Wireless Communications and Networking Conference, WCNC 2009
CountryHungary
CityBudapest
Period5/04/098/04/09

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    Lin, S. J., Sheen, W. H., & Huang, C-C. (2009). Downlink performance and optimization of relay-assisted cellular networks. In 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings [4917684] (IEEE Wireless Communications and Networking Conference, WCNC). https://doi.org/10.1109/WCNC.2009.4917684