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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Young-Ho Jung Seung Hoon Nam Yungsoo Kim Jaehak Chung Tarokh, Vahid |
| Copyright Year | 2006 |
| Description | Author affiliation: Communication R&D Center, Samsung Electronics (Seung Hoon Nam; Yungsoo Kim) || Div. of Eng. and App. Sci., Harvard University. Email: vahid@deas.harvard.edu (Vahid Tarokh) || Communication R&D Center, Samsung Electronics. Email: yh.jung@ieee.org (Young-Ho Jung) || Dept. of Elec. Eng., Inha University. Email: jchung@inha.ac.kr (Jaehak Chung) |
| Abstract | In this paper, we construct a differential spatial multiplexing method that can trade-off spatial diversity for increased transmission rate in differential multi-input multi-output (MIMO) systems. To achieve a desired multiplexing gain while providing simple encoding and decoding, Gram-Schmidt algorithm is used at the transmitter to construct the unitary transmission matrix. In addition, by applying optimum scaling factors to generate transmission matrix, the symbol error rates can be minimized. Because the transmission matrix itself is not the information we are interested in, the equivalent channel parameters for each transmitted information symbols are calculated and the linear signal model for the information symbols is derived. Since that model is exactly the same as that of the coherent spatial multiplexing, all kinds of coherent detection schemes can be directly applied. The advantage of the proposed scheme over the differential space-time block codes (STBC) and the effects of scaling factor are investigated by computer simulation. In high transmission rate regimes, the proposed differential spatial multiplexing method can outperform the differential STBC having the same transmit rate in the signal to noise ratios (SNRs) we are interested in. |
| Starting Page | 3317 |
| Ending Page | 3322 |
| File Size | 190409 |
| Page Count | 6 |
| File Format | |
| ISBN | 1424403553 |
| ISSN | 81649547 |
| DOI | 10.1109/ICC.2006.255228 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-06-11 |
| Publisher Place | Turkey |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Transmitting antennas MIMO Tellurium Fading Receiving antennas Transmitters Computer simulation Diversity methods Maximum likelihood decoding Maximum likelihood detection |
| Content Type | Text |
| Resource Type | Article |
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