An On/Off Power Control for OFDM Transmission Scheme in a Cochannel Interference Environment 


Vol. 32,  No. 10, pp. 1042-1049, Oct.  2007


PDF
  Abstract

Frequency reuse in a cellular wireless communication environment gives rise to a phenomenon of cochannel interference. This paper introduces a power control strategy for OFDM based communication systems operating in such an environment. Among the existing power control schemes, IWF(iterative waterfilling) is known to exhibit relatively good performance. However, it requires feedback of power level and bit allocation information for each subcarrier from a receiver to its associated transmitter, which can lead to a considerable overhead, especially for the case of employing large number of subcarriers. Motivated by this, we present a simplified power control scheme with reduced overhead feedback, which allocates some nonzero identical power to the subcarriers of which channel conditions are above a certain threshold and zero power to the other ones. Computer simulations show that the proposed strategy produces a good approximation to the performance of the IWF in terms of the transmission power level while it requires less overhead feedback.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

J. Park and C. H. Lim, "An On/Off Power Control for OFDM Transmission Scheme in a Cochannel Interference Environment," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 10, pp. 1042-1049, 2007. DOI: .

[ACM Style]

Jinkyu Park and Chang Heon Lim. 2007. An On/Off Power Control for OFDM Transmission Scheme in a Cochannel Interference Environment. The Journal of Korean Institute of Communications and Information Sciences, 32, 10, (2007), 1042-1049. DOI: .

[KICS Style]

Jinkyu Park and Chang Heon Lim, "An On/Off Power Control for OFDM Transmission Scheme in a Cochannel Interference Environment," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 10, pp. 1042-1049, 10. 2007.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)






pISSN : 1226 - 4717
eISSN : 2287 - 3880