Efficient allocation of transmission power and rate in multicarrier code-division multiple-access communications

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Abstract

We propose an efficient frequency-time domain resource allocation scheme in multicarrier (MC) direct-sequence code-division multiple-access (DS/CDMA) communications. We consider, as a power allocation strategy in the frequency domain, transmitting each user's DS waveforms over the user's sub-band with the largest channel gain. We then consider rate adaptation in the time domain, where the data rate is adapted such that a desired transmission quality is maintained. We analyze the achievable average data rate of the proposed scheme with fixed average transmission power, and compare the performance to single carrier DS/CDMA systems with power and rate adaptations.

Original languageEnglish
Title of host publicationAdvanced Communication and Networking - Third International Conference, ACN 2011, Proceedings
Pages109-116
Number of pages8
DOIs
StatePublished - 2011
Event3rd International Conference on Advanced Communication and Networking, ACN 2011 - Brno, Czech Republic
Duration: 15 Aug 201117 Aug 2011

Publication series

NameCommunications in Computer and Information Science
Volume199 CCIS
ISSN (Print)1865-0929

Conference

Conference3rd International Conference on Advanced Communication and Networking, ACN 2011
Country/TerritoryCzech Republic
CityBrno
Period15/08/1117/08/11

Keywords

  • adaptive systems
  • code division multiaccess
  • multicarrier

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