Title :
Improvement of the throughput-SNR trade-off using a 4G adaptive MCM system
Author :
Cho, Insik ; Seo, Changwoo ; Yoon, Gilsang ; Lee, Jeonghwan ; Portugal, Sherlie ; Hwang, Intae
Author_Institution :
Dept. of Electron. & Comput. Eng., Chonnam Nat. Univ., Gwangju, South Korea
fDate :
Aug. 28 2010-Sept. 3 2010
Abstract :
The MIMO-OFDM Adaptive MCM System changes MIMO scheme, channel coding rate, and modulation scheme, adaptively, according to the channel conditions. And the addition of Pre-coding and Antenna Subset Selection assures a better performance and higher data rate. The MIMO-OFDM Adaptive MCM System achieves a better average throughput performance than a Non Adaptive-MCM system; as SNR increases, the throughput increases almost linearly. Based on the simulation results, we conclude that the proposed MIMO-OFDM Adaptive MCM System represents a feasible solution for improving the throughput-SNR tradeoff in the next generation of mobile communication systems.
Keywords :
4G mobile communication; MIMO communication; OFDM modulation; channel coding; precoding; transmitting antennas; 4G adaptive MCM system; MIMO scheme; MIMO-OFDM adaptive MCM system; antenna subset selection; average throughput performance; channel coding rate; channel condition; modulation scheme; next generation mobile communication system; precoding; throughput-SNR tradeoff; transmit antenna; MIMO; Modulation; OFDM; Signal to noise ratio; Throughput; Transmitting antennas;
Conference_Titel :
Wireless Information Technology and Systems (ICWITS), 2010 IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-7091-4
DOI :
10.1109/ICWITS.2010.5611957
