Title :
Improving the adaptive rate QAM-DFE systems performance by using Tomlinson-Harashima precoding
Author :
Paris, J.F. ; Aguayo-Torres, M.C. ; Entrambasaguas, J.T.
Author_Institution :
Departamento de Ingenieria de Comunicaciones, Malaga Univ., Spain
Abstract :
An adaptive modulation scheme using Tomlinson-Harashima precoding (THP) to counteract frequency and time selective radio channel fading is proposed. In wireless time division duplex (TDD) topologies, this scheme is shown to overcome the limitations of recently proposed adaptive modulation with decision feedback equalization (DFE) systems. Simulation results confirm the superiority of the proposed scheme
Keywords :
adaptive modulation; decision feedback equalisers; encoding; fading channels; quadrature amplitude modulation; radio links; time division multiplexing; TDD; Tomlinson-Harashima precoding; adaptive QAM-DFE system; adaptive modulation scheme; adaptive quadrature amplitude modulation; decision feedback equalization; fading channel; frequency selective fading; time selective fading; wireless time-division duplex topologies; Adaptive systems; Decision feedback equalizers; Delay; Fading; Intersymbol interference; Quadrature amplitude modulation; Quality of service; Radio transmitters; System performance; Throughput;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944577
