摘要
根据标准研究了LTE系统的自适应调制编码技术,并针对该系统提出了自适应调制编码技术的实现方案。在LTE系统环境下仿真了提出的实现方案的性能,结果表明:无论在高信噪比还是在低信噪比条件下,自适应技术均比单一的编码调制方案吞吐量有明显的提升,该自适应实现方案在保证一定的通信可靠性的前提下,能够更有效地利用频谱资源和提高系统吞吐量。
The adaptive modulation coding technology to the LTE system was researched subject to the physical standard of LTE and the realization scheme of adaptive modulation and coding technology for the system was proposed. The performance of proposed implementation plan was simulated in the LTE system enviromnent. The simulation results show that the adaptive technology improved the throughput more obvious than any single modulation and coding scheme whether under high or low SNR conditions.The adaptive modulation coding realization scheme can improve the efficiency of frequency resource and enhance the system throughpnt while keeping the communication reliability.
出处
《现代电信科技》
2010年第9期41-44,49,共5页
Modern Science & Technology of Telecommunications
基金
国家科技重大专项资金项目(2009ZX03002-009)
关键词
自适应调制
LTE
调制编码方案
实现
adaptive modulation, LTE, modulation and coding scheme,realization
