In order to solve the problem that the traditional Modulation and Coding Scheme(MCS) selecting rule improves the performance limitedly
this paper introduces a novel MCS selection criterion for the LTE system supporting an Adaptive-Modulation and Coding(AMC) scheme.The proposed criterion uses the sum of the weighted SNRs to determine the appropriate MCS for the AMC system.The simulation shows that when the throughput is 2.8 bit / symbol
the new rule brings the benefits of 2dB than the two-step rule
the proposed criterion applied to the AMC-LTE systems not only compensates for the channel variation over the slot duration to guarantee the required BER performance
but also maximizes the system throughput.
关键词
自适应调制编码长期演进调制编码方案选择准则
Keywords
Adaptive Modulation and Coding(AMC)LTEModulation and Coding Scheme(MCS)selection criterion