OFDM subchannel space-combining transmission diversity for broadband wireless communication systems
OFDM subchannel space-combining transmission diversity for broadband wireless communication systems
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宽带无线通信系统的 OFDM 子信道空间组合传输分集
DOI：
10.1109/icupc.1998.732818
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
M. Umehira
中科院分区：
文献类型：
--
作者：
Y. Matsumoto;N. Mochizuki;M. Umehira
提出了一种结合正交频分复用（OFDM）调制的发射分集（TD）技术，用于提高微小区宽带无线通信系统的误包率（PER）性能。所提出的TD技术基于由移动的终端（MT）发送的信号的质量测量结果在接入点（AP）处以逐子信道的方式选择具有预期的更好信道条件的天线。在随后的从AP到MT的传输定时中，AP站处的每个天线发送仅具有所选择的子信道分量的OFDM调制信号。在MT侧，通过单个天线接收空间组合的全子信道OFDM信号。
This paper proposes a transmission diversity (TD) technique combined with orthogonal frequency division multiplex (OFDM) modulation to enhance packet-error-rate (PER) performance in microcell broadband wireless communication systems. The proposed TD technique selects the antenna with the anticipated better-channel conditions in a subchannel-by-subchannel manner at the access point (AP) based on the quality-measurement results of signals sent by the mobile terminal (MT). In the subsequent transmission timing from the AP to the MT, each antenna at the AP station transmits OFDM-modulated signals that only possess the selected subchannel components. On the MT side, the space-combined whole subchannel OFDM signal is received through the single antenna.