A Joint Rate Control and AMC Algorithm for Adaptive Transmission Systems  

作　　者：Yang Yu Xue-Zhi Tan Yong-Gang Chi Lin Ma Yao Wang 

机构地区：[1]Communication Research Center,Harbin Institute of Technology

出　　处：《Journal of Harbin Institute of Technology(New Series)》2013年第2期12-16,共5页哈尔滨工业大学学报（英文版）

基　　金：Sponsored by the National Natural Science Foundation and Civil Aviation Administration of China(Grant No.61101122 and 61071104);the Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory(Grant No.ITD-U12004/K1260010)

摘　　要：The traditional communication system is effectively designed for the worst-case channel state and it can not use the spectral efficiently over the time-varying multipath channel. In order to improve the spectral efficiency and ensure robust and spectrally-efficient transmission over the time-varying multipath channel,a joint rate control and adaptive modulation and coding ( AMC) algorithm for adaptive transmission systems is proposed in this paper. Firstly,the proposed algorithm can formulate a modulation and coding scheme ( MCS) switching table according to the offline simulation results and the target bit error rate ( BER) . Then,the optimal MCS is selected in MCS switching table according to the channel state information ( CSI) and then passes to the transmitter and receiver to implement. So the adaptive system which always uses the optimal MCS to transmit signals uses the spectral efficiently. The simulation results validate the proposed algorithm and show that under the premise of meeting the target BER,the adaptive system performing the proposed algorithm has a higher average spectral efficiency ( ASE) than that of the non-adaptive system.The traditional communication system is effectively designed for the worst-case channel state and it can not use the spectral efficiently over the time-varying multipath channel. In order to improve the spectral efficiency and ensure robust and spectrally-efficient transmission over the time-varying multipath channel, a joint rate control and adaptive modulation and coding （AMC） algorithm for adaptive transmission systems is proposed in this paper. Firstly, the proposed algorithm can formulate a modulation and coding scheme （MCS） switching table according to the offline simulation results and the target bit error rate （BER）. Then, the optimal MCS is selected in MCS switching table according to the channel state information （CSI） and then passes to the transmitter and receiver to implement. So the adaptive system which always uses the optimal MCS to transmit signals uses the spectral efficiently. The simulation results validate the proposed algorithm and show that under the premise of meeting the target BER, the adaptive system performing the proposed algorithm has a higher average spectral efficiency （ASE） than that of the non-adaDfive system.

关 键 词：adaptive modulation and coding average spectral efficiency adaptive transmission system modulation and coding scheme switching table 

分 类 号：TN91[电子电信—通信与信息系统]