Hwang, I Jang, TW Kang, MG No, S Son, J Hong, DS Kang, CE 2024-01-21T07:35:32Z 2024-01-21T07:35:32Z 2022-01-25 2004-02 0167-739X https://pubs.kist.re.kr/handle/201004/137856 In this paper, we combine Adaptive Modulation and Coding (AMC) with Transmit Diversity (TD) to improve the performance of AMC in CDMA systems. An improved SNR increases a probability of selecting Modulation and Coding Scheme (MCS) level that supports higher data transfer rate. Therefore, higher average throughput can be achieved. As an open-loop TD, Space-Time block coding based Transmit antenna Diversity (STTD) is applied to AMC. For a closed-loop TD, Selection Transmit Diversity (STD) is combined with AMC. The results show that higher throughput is achieved by AMC-TD schemes. Compared to the conventional AMC, AMC-STTD scheme shows about 250 kbps increase in throughput. In addition, AMC-STD with two transmit antennas achieves about 420 kbps throughput improvement over the conventional AMC at 9 dB SNR in flat Rayleigh fading channel. (C) 2003 Published by Elsevier B.V. English ELSEVIER SCIENCE BV FADING CHANNELS Performance analysis of adaptive modulation and coding combined with transmit diversity in next generation mobile communication systems Article 10.1016/S0167-739X(03)00133-X 1 FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF ESCIENCE, v.20, no.2, pp.189 - 196 FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF ESCIENCE 20 2 189 196 scie scopus 000189093800003 2-s2.0-0742307230 Computer Science, Theory & Methods Computer Science Article; Proceedings Paper FADING CHANNELS Adaptive Modulation and Coding Transmit Diversity Modulation and Coding Scheme