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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Zhihang Yi Il-Min Kim |
| Copyright Year | 2008 |
| Description | Author affiliation: Dept. of Electr. & Comput. Eng., Queen's Univ. Kingston, Kingston, ON (Zhihang Yi; Il-Min Kim) |
| Abstract | Very recently, we proposed the row-monomial distributed orthogonal space-time block codes (DOSTBCs) in [1] and showed that the codes achieved approximately twice higher bandwidth efficiency than the repetition-based cooperative strategy. In [1], we assumed that the relays did not have any channel state information (CSI) of the channels from the source to themselves, i.e. the channels of the first hop. However, we notice that this CSI can be readily obtained at the relays without any additional pilot signals or any feedback overhead. Therefore, in this paper, we assume that the relays have partial CSI of the first hop and use this information to construct the codes. We refer to those codes as the row-monomial DOSTBCs with channel phase information (DOSTBCs-CPI) and derive an upper bound of the data-rate of the codes. This upper bound suggests that the row-monomial DOSTBCs-CPI have higher bandwidth efficiency than the row- monomial DOSTBCs in [1], especially in a cooperative network with many relays. Furthermore, we find the actual row-monomial DOSTBCs-CPI achieving the upper bound of the data-rate. |
| Starting Page | 1185 |
| Ending Page | 1189 |
| File Size | 141015 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424420759 |
| DOI | 10.1109/ICC.2008.231 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-05-19 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Block codes Relays Maximum likelihood decoding Bandwidth Upper bound Constellation diagram Noise generators Communications Society Channel state information Feedback |
| Content Type | Text |
| Resource Type | Article |
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