Performance evaluation of a space-time turbo equalizer in frequency selective MIMO channels using field measurement data
Performance evaluation of a space-time turbo equalizer in frequency selective MIMO channels using field measurement data
复制标题
使用现场测量数据评估频率选择性 MIMO 信道中的空时涡轮均衡器的性能
DOI：
10.1049/ic:20010211
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
T. Matsumoto
中科院分区：
文献类型：
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作者：
T. Abe;S. Tomisato;T. Matsumoto
本文的主要目的是对我们提出的软对消空时(S/T)MIMO Turbo均衡器的现场性能进行评估。本文讨论的SC/MMSE S/T MIMO Turbo均衡器以迭代的方式执行联合MIMO信道估计、SC/MMSE MIMO信号检测和信道码译码。在MIMO通信环境中，当空间和时间域存在丰富的散射时，可以以实际的计算复杂度获得完全的分集增益。使用信道测深仪系统在东京市区进行了一系列现场测量活动，并使用收集的信道冲激响应数据集进行离线模拟，以评估MIMO涡轮均衡器的现场性能。在2用户2接收天线MIMO上行链路环境中，评估了两个同时用户的误码率性能。文中给出了仿真结果。(5页)
Evaluating in-field performances of our proposed MIMO turbo equalizer, soft canceller (SC) followed by MMSE (SC/MMSE) space-time (S/T) MIMO turbo equalizer, is the primary objective of this paper. The SC/MMSE S/T MIMO turbo MIMO turbo equalizer discussed in this paper performs joint MIMO channel estimation, SC/MMSE MIMO signal detection, and decoding of the channel code used, all in an iterative manner. Full diversity gain can be achieved with practical computational complexity in the presence of rich scattering in space and time domains in MIMO communication environments. A series of field measurement campaigns took place in an urban area of Tokyo using a channel sounder system, and sets of collected channel impulse response data were used in off-line simulations to evaluate in-field performance of the MIMO turbo equalizer. In 2-user 2-receive antenna MIMO uplink environments, bit error rate performance was evaluated for the two simultaneous users. Results of the simulations are presented in this paper. (5 pages)