Dynamic Decode-and-Forward Relaying with Partial CSIT and Optimal Time Allocation

SU Yinjie; JIANG Lingge; HE Chen

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Article Navigation > Chinese Journal of Electronics > 2015 > 24(1): 193-198

SU Yinjie, JIANG Lingge, HE Chen, “Dynamic Decode-and-Forward Relaying with Partial CSIT and Optimal Time Allocation,” Chinese Journal of Electronics, vol. 24, no. 1, pp. 193-198, 2015,

Citation:

SU Yinjie, JIANG Lingge, HE Chen, “Dynamic Decode-and-Forward Relaying with Partial CSIT and Optimal Time Allocation,” Chinese Journal of Electronics, vol. 24, no. 1, pp. 193-198, 2015,

SU Yinjie, JIANG Lingge, HE Chen, “Dynamic Decode-and-Forward Relaying with Partial CSIT and Optimal Time Allocation,” Chinese Journal of Electronics, vol. 24, no. 1, pp. 193-198, 2015,

Citation:

SU Yinjie, JIANG Lingge, HE Chen, “Dynamic Decode-and-Forward Relaying with Partial CSIT and Optimal Time Allocation,” Chinese Journal of Electronics, vol. 24, no. 1, pp. 193-198, 2015,

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Dynamic Decode-and-Forward Relaying with Partial CSIT and Optimal Time Allocation

1.
Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200240, China;
2.
Department of Electronic Engineering, Jiangsu University of Science and Technology, Zhenjiang 212001, China

Funds: This work is supported by the National High Technology Research and Development Program of China (863 Program) (No. 2014AA01A701) and the National Natural Science Foundation of China (No. 61172067, No. 61371086, No. 61371114).

Received Date: 2013-09-01
Rev Recd Date: 2014-02-01
Publish Date: 2015-01-10

Abstract

Abstract

A Dynamic decode-and-forward (DDF) relaying protocol with partial Channel state information at the transmitter (CSIT) for a three-node half-duplex single-antenna network, which consists of a single source-destination pair and a relay, is proposed. A Diversity multiplexing tradeoff (DMT) analysis is presented, in which the DMT of the proposed protocol is derived in a closed-form and an adaptive time allocation strategy is also developed to achieve the optimal performance. It is shown that time allocation with partial CSIT significantly improves the achievable DMT for DDF relaying. Moreover, unlike the existing DDF protocol with CSIT, which is performed with the assumption of long-term power constraint, the proposed protocol can be generalized to the practical scenarios where a strict short-term power constraint is often imposed on, due to the environmental safety and interference prevention.
- Dynamic decode-and-forward (DDF),
- Diversity multiplexing tradeoff (DMT),
- Adaptive time allocation

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References(20)

References

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