期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2012
卷号：46
期号：1
页码：093-097
出版社：Journal of Theoretical and Applied
摘要：Based on cross-layer design, an optimization method was proposed, which combined the adaptive modulation and coding with symbol rate at the physical layer, and the packet size and sub-packet number at the data link layer. The parameters were jointly optimized to maximize the MIMO system throughput in the Rayleigh fading channel. Numerical results reveal that the optimization method can be adapted to the time-varying wireless channel and greatly improve the throughput compared with separate layer design. Besides, under prescribed error performance constraint, the larger the maximum number of transmissions, the higher the throughput. A small number of transmissions can offer a desirable delay-throughput tradeoff in practice.
关键词：Cross-Layer Design; MIMO System; Throughput Optimization; Adaptive Technique
