Title :
Research on the modulation and coding scheme in LTE TDD wireless network
Author :
Yu, Chen ; Xiangming, Wen ; Xinqi, Lin ; Wei, Zheng
Author_Institution :
Sch. of Continuing Educ., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
In accordance with the channel status information, modulation and coding method can be changed adaptively to enhance the throughput in Long Term Evolution Time Division Duplexing (LTE TDD) system. With the scheme of Exponential Effective SNR Mapping (EESM) and Mutual Information Effective SNR Mapping (MIESM), two Adaptive modulation and coding mechanisms are proposed in this paper. Simulation results show that the performance on network throughput can be improved effectively both in the ideal channel and multi-path channel environment.
Keywords :
adaptive codes; adaptive modulation; mobile communication; time division multiplexing; adaptive coding; adaptive modulation; exponential effective SNR mapping; long term evolution time division duplexing wireless network; mutual information effective SNR mapping; AWGN channels; Continuing education; Fading; Modulation coding; Mutual information; OFDM modulation; Quadrature phase shift keying; Signal to noise ratio; Throughput; Wireless networks; LET TDD; OFDM; adaptive modulation and coding; modulation and coding scheme; wireless network;
Conference_Titel :
Industrial Mechatronics and Automation, 2009. ICIMA 2009. International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3817-4
DOI :
10.1109/ICIMA.2009.5156664
