Title :
On the BER Performance of Hierarchical M-QAM Constellations With Diversity and Imperfect Channel Estimation
Author :
Souto, Nuno M B ; Cercas, Francisco A B ; Dinis, Rui ; Silva, João C M
Author_Institution :
Inst. Superior de Ciencias do Trabalho e da Empresa, Lisbon
Abstract :
The analytical bit error rate of hierarchical quadrature amplitude modulation formats, which include uniform and nonuniform constellations, over flat Rayleigh fading environments is studied in this paper. The analysis takes into account the effect of imperfect channel estimation and considers diversity reception with both independent identically and nonidentically distributed channels, employing maximal ratio combining.
Keywords :
Rayleigh channels; channel estimation; diversity reception; error statistics; quadrature amplitude modulation; BER performance; bit error rate; distributed channels; diversity reception; flat Rayleigh fading; hierarchical M-QAM constellations; hierarchical quadrature amplitude modulation formats; imperfect channel estimation; Bit error rate; Channel estimation; Digital video broadcasting; Diversity reception; Fading; Performance analysis; Protection; Quadrature amplitude modulation; Rayleigh channels; Telecommunications; Channel estimation, diversity; Rayleigh fading; quadrature amplitude modulation (QAM);
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2007.906367
