BER-minimized space-time-frequency codes for MIMO highly frequency-selective block-fading channels

被引：0

作者：

Liu, Wei-Cheng ^{[1
]}

Wang, Li-Chun ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Commun Engn, Hsinchu, Taiwan

来源：

2008 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, PROCEEDINGS, VOLS 1-13 | 2008年

关键词：

bit error rate (BER); block fading channels; IEEE 802.15.3a channel model; multi input multioutput (MIMO); space time frequency (STF) block codes; ultrawideband (UWB);

D O I：

10.1109/ICC.2008.960

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we present bit error rate (BER) minimized space time frequency (STF) block codes for multi input multi output (MIMO) highly frequency selective block fading channels. We consider the IEEE 802.15.3a ultra wide band (UWB) channel models (CM) 1-4. Based on a new STF block codes design criterion with the objective of minimizing BER, we develop an efficient searching algorithm for the design of the optimal STF block codes which maximize the coding gain. For 128 subcarriers with two subcarriers jointly encoding with 2-4 transmitting antennas, we find that the optimal STF block codes for all the IEEE 802.15.3a UWB channel models CM 1-4 can he found. Furthermore, the designed STF block codes outperform the recently published high rate full diversity STF codes [1] by I dB. Last, the proposed STF codes can be decoded by maximum likelihood decoding approach, which is simpler than the sphere decoding principle used in [1].

引用

页码：5113 / 5117

页数：5

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