Pilot Frequency Nulling based Channel Estimation for Multiple QR-Decompositions with Transposed Channel Matrix SDM/OFDM

摘要：

In MIMO systems, MLD/SDM provides the best BER performance. However, the complexity of MLD increases exponentially according to the modulation level and number of transmit antenna branches. Moreover, the preamble structure is also serious problem. With increasing the number of transmit antenna branches, more pilot symbol is required to estimate the accurate channel state information (CSI). In this case, the effective transmission rate is degraded and different packet structure is also required. To reduce these problems, in this paper,we propose the pilot frequency nulling based channel estimation scheme for multiple QR-decompositions with transposed channel matrix SDM/OFDM.

作者: Chang-Jun Ahn Makoto Taromaru

作者单位: ATR Wave Engineering laboratories 2-2-2 Hikaridai, Keihanna Science City, Kyoto, 619-0288 Japan

会议类型: 国际会议

会议名称: 2006年IEEE信息理论国际会议(Proceedings of 2006 IEEE Information Theory Workshop ITW06)

会议地点: 成都

会议语种:英文

页码: 636-640

在线出版日期: 2006-10-22（万方平台首次上网日期，不代表论文的发表时间）