Title :
Joint transmit antenna selection and adaptive modulation in cross-layer oriented designs for HSDPA systems
Author :
López-Vicario, José ; Anton-Haw, C.
Author_Institution :
Telecommun. Technol. Center of Catalonia, Barcelona, Spain
Abstract :
In this paper, we propose a cross-layer design that combines antenna selection and adaptive modulation strategies in a HSDPA context. In order to optimize system performance, in terms of link throughput, both the optimal transmit antenna subset and the corresponding constellation size are jointly selected. Algorithm performance is compared with that of a scheme where transmit antenna selection and adaptive modulation processes are conducted by exclusively considering physical layer parameters. Computer simulation results show the superior performance of the cross-layer approach for which computational complexity still remains affordable.
Keywords :
adaptive modulation; computational complexity; packet radio networks; radio access networks; transmitting antennas; HSDPA system; adaptive modulation; computational complexity; constellation size; cross-layer oriented design; high speed downlink packet access; joint transmit antenna selection; link throughput; physical layer parameter; system performance optimisation; Adaptive arrays; Automatic repeat request; Computational complexity; Downlink; MIMO; Multiaccess communication; Physical layer; Signal processing; Throughput; Transmitting antennas;
Conference_Titel :
Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004
Print_ISBN :
0-7803-8545-4
DOI :
10.1109/SAM.2004.1503003
