Adaptive modulation coding technology in LTE-M Train-Ground wireless communication sysytem
Train-Ground wireless communication LTE sysytem is different from the public wire-less communication system in terms of communication environment and service requirements.The traditional modulation coding technology can not meet the performance requirements.In view of the particularity of LTE-M application scenarios,this paper proposes an optimization scheme of AMC technology.The test results show that the scheme solves the problem of inaccu-rate MCS caused by too fast signal quality change and frequent signal jitter,It ensures the packet loss rate and delay during the handover process,and greatly improves the performance indicators during the handover process.
Adaptive modulation codingLTE-M systemModulation and Coding Scheme
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