Downlink site selection transmit diversity with power allocation for A 2-dimensional block spread DS-CDMA cellular system

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

Abstract

2-dimensional (2D) block spread direct sequence-code division multiple access (DS-CDMA) allows mutli-rate/mutli-eonneetion without causing downlink multi-access interference (MAI) in the presence of a frequency-selective fading channel. However, in a cellular system, the inter-cell interference remains. The site selection diversity transmission (SSDT) can be used to reduce the inter-cell interference and increase the downlink capacity. In this paper, we show that if adaptive power allocation is applied, where the BS allocates different power levels to different users according to their channel conditions, 2D block spread DS-CDMA with SSDT provides larger downlink capacity than the conventional DS-CDMA with SSDT.

Original languageEnglish
Title of host publication2007 IEEE Wireless Communications and Networking Conference, WCNC 2007
Pages2014-2018
Number of pages5
DOIs
Publication statusPublished - 2007 Nov 27
Event2007 IEEE Wireless Communications and Networking Conference, WCNC 2007 - Kowloon, China
Duration: 2007 Mar 112007 Mar 15

Publication series

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

Other

Other2007 IEEE Wireless Communications and Networking Conference, WCNC 2007
CountryChina
CityKowloon
Period07/3/1107/3/15

ASJC Scopus subject areas

  • Engineering(all)

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    Liu, L., & Adachi, F. (2007). Downlink site selection transmit diversity with power allocation for A 2-dimensional block spread DS-CDMA cellular system. In 2007 IEEE Wireless Communications and Networking Conference, WCNC 2007 (pp. 2014-2018). [4204553] (IEEE Wireless Communications and Networking Conference, WCNC). https://doi.org/10.1109/WCNC.2007.377