Title :
Transmission scheme using fading-resistant constellations
Author :
Da Silva, George Azevedo ; De Assis, Francisco Marcos
Author_Institution :
CCT, Univ. Fed. da Paraiba, Joao Pessoa, Brazil
Abstract :
In this paper we propose new schemes combining space diversity and multidimensional constellations, in order to achieve efficient transmission over slow fading channels. The key idea is mapping information bits to points of an N-dimensional signal constellation and project these points on certain sub-spaces. Coordinates from each sub-space are transmitted by independent flat slow fading sub-channels to get both spectral efficiency and diversity. The new transmission schemes are compared by means simulation with well-known systems
Keywords :
Rayleigh channels; antenna arrays; antenna theory; mobile communication; radio networks; transmitting antennas; N-dimensional signal constellation; fading-resistant constellations; flat slow fading sub-channels; information bits; multidimensional constellations; slow fading channels; space diversity; spectral efficiency; sub-space; transmission schemes; Constellation diagram; Euclidean distance; Fading; Genetic algorithms; Genetic mutations; Hypercubes; State estimation; Transmitters; Transmitting antennas; Two dimensional displays;
Conference_Titel :
Wireless Communications and Networking Confernce, 2000. WCNC. 2000 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-6596-8
DOI :
10.1109/WCNC.2000.903940
