Diversity Combining with Up-Link Power Control Conference Paper uri icon

abstract

  • We introduce in this paper a new adaptive power-controlled diversity combining scheme that reduces the average transmitted power of the mobile units while meeting a certain minimum required quality of service. The key idea is (i) to collect and combine all the available diversity paths at the base station and then (ii) to request the mobile unit to increase or decrease its transmitted power just to track the required target signal-to-noise ratio (SNR). Four power control variants accounting for practical implementation constraints including discrete power levels and transmitter gain saturation are proposed and studied. Some selected numerical results, show that the proposed scheme offers considerable savings in the transmitted power levels over a wide SNR range but amplifier saturation leads to a violation of the target BER requirement in the low average SNR range. Additional numerical examples, show that the power control variants that take into account practical implementation constraints conserve the main features of the ideal continuous power algorithm. 2006 IEEE.

name of conference

  • 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications

published proceedings

  • 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications

author list (cited authors)

  • Nam, S. S., Alouini, M., & Qaraqe, K. A.

citation count

  • 5

complete list of authors

  • Nam, Sung Sik||Alouini, Mohamed-Slim||Qaraqe, Khalid A

publication date

  • January 2006