Bouida, Zied (2009-08). Performance Analysis of Fully Joint Diversity Combining, Adaptive Modulation, and Power Control Schemes. Master's Thesis. Thesis uri icon


  • Adaptive modulation and diversity combining represent very important adaptive
    solutions for future generations of wireless communication systems. Indeed, to
    improve the performance and the efficiency of these systems, these two techniques
    recently have been used jointly in new schemes named joint adaptive modulation
    and diversity combining (JAMDC) schemes. Considering the problem of finding lowcomplexity,
    bandwidth-efficient, and processing-power efficient transmission schemes
    for a downlink scenario and capitalizing on some of these recently proposed JAMDC
    schemes, we propose and analyze three fully joint adaptive modulation, diversity
    combining, and power control (FJAMDC) schemes. More specifically, the modulation
    constellation size, the number of combined diversity paths, and the needed power
    level are determined jointly to achieve the highest spectral efficiency with the lowest
    possible combining complexity, given the fading channel conditions and the required
    bit error rate (BER) performance. The performance of these three FJAMDC schemes
    is analyzed in terms of their spectral efficiency, processing power consumption, and
    error-rate performance. Selected numerical examples show that these schemes considerably
    increase the spectral efficiency of the existing JAMDC schemes with a slight increase in the average number of combined paths for the low signal to noise ratio
    range while maintaining compliance with the BER performance and a low radiated
    power resulting in a substantial decrease in interference to co-existing systems/users.

publication date

  • August 2009