Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yu, Tsang-Wei | en_US |
dc.contributor.author | Sheen, Wern-Ho | en_US |
dc.contributor.author | Wang, Chung-Hsuan | en_US |
dc.date.accessioned | 2014-12-08T15:23:15Z | - |
dc.date.available | 2014-12-08T15:23:15Z | - |
dc.date.issued | 2012-05-01 | en_US |
dc.identifier.issn | 1536-1276 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/16327 | - |
dc.description.abstract | Cooperative bit-interleaved coded modulation (BICM) is a key technology for the next-generation wireless communication systems. This paper investigates power allocation for the cooperative BICM systems with decode-remap-and-forward (DRF) relaying. Unlike the conventional decode-and-forward relays, the DRF relays may choose different constellation mappings from that of source so as to obtain a remapping gain. In spite of its importance, the power allocation in such a system has not yet been explored in the literature. Two new power allocation methods are proposed, aiming to minimize bit error rate at the destination. The first uses a cost function based on the minimum weighted squared-Euclidean distance (called PA-MWSED) and is optimized with the sub-gradient method. The second is based on a generalized MWSED (called PA-GMWSED) and is optimized with the Simplex method after the optimization is re-cast as a linear programming problem. Generally speaking, PA-MWSED has a better performance than PA-GMWSED but requires a higher complexity. Numerical results show that both of the proposed methods outperform the equal gain power allocation with large margins. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | Bit-interleaved coded modulation | en_US |
dc.subject | cooperative relaying | en_US |
dc.subject | decode-remap-and-forward | en_US |
dc.subject | power allocation | en_US |
dc.title | Power Allocation for Cooperative Bit-Interleaved Coded Modulation Systems with Decode-Remap-and-Forward Relaying | en_US |
dc.type | Article | en_US |
dc.identifier.journal | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | en_US |
dc.citation.volume | 11 | en_US |
dc.citation.issue | 5 | en_US |
dc.citation.epage | 1712 | en_US |
dc.contributor.department | 電機工程學系 | zh_TW |
dc.contributor.department | Department of Electrical and Computer Engineering | en_US |
dc.identifier.wosnumber | WOS:000304242200010 | - |
dc.citation.woscount | 2 | - |
Appears in Collections: | Articles |
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