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Superposition coding relaying with only destination-to-relay channel state feedback under long term power constraint

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2 Author(s)
Jia, Xiangdong ; Nanjing Univ. of Posts & Telecommun., Nanjing, China ; Longxiang Yang

Superposition coding relaying (SC-relaying) has the merit of high throughput. At the same time, the investigation of diversity-multiplexing tradeoff (DMT) is also particularly useful for the design and analysis of cooperative relaying strategy. In this work, we consider a two-level rate SC-relaying strategy with only destination-to-relay channel state feedback (DR-CSF) under a long term power constraint. For the SC-relaying strategy with DR-CSF, the allocation rules of relay power SNR exponent are obtained firstly. With the power exponent allocation rules, the DMT of additional signal is investigated as well as its optimizing close-form solution.

Published in:

Advanced Communication Technology (ICACT), 2010 The 12th International Conference on  (Volume:1 )

Date of Conference:

7-10 Feb. 2010