[1] Yi Xiao, Wu Mingzhan, Liu Nan,. A superposition scheme for downlink multicell processingwith finite backhaul capacity [J]. Journal of Southeast University (English Edition), 2017, 33 (3): 253-259. [doi:10.3969/j.issn.1003-7985.2017.03.001]

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A superposition scheme for downlink multicell processingwith finite backhaul capacity()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

33

Issue:

2017 3

Page:

253-259

Research Field:

Information and Communication Engineering

Publishing date:

2017-09-30

Info

Title:

A superposition scheme for downlink multicell processingwith finite backhaul capacity

Author(s):

Yi Xiao;  Wu Mingzhan;  Liu Nan

National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China

Keywords:

multicell processing;  finite backhaul capacity;  superposition;  dirty-paper coding;  power allocating

PACS:

TN929

DOI:

10.3969/j.issn.1003-7985.2017.03.001

Abstract:

In the scenario of downlink multicell processing with finite backhaul capacity in the case of two base stations and two mobile users, by regarding the channel as a multiple access diamond channel with two destinations, an achievability scheme that sends correlated codewords through the multiple access channel with common data is proposed. By considering the superposition structure, fully correlated codewords can be supported by the proposed scheme, which can benefit the system throughput in the case of a relatively-large-capacity backhaul. First, an achievable region for the achievable theory is given and it is proved from the perspective of information theory. Then, in the Gaussian scenario, a simulation combining dirty-paper coding and power allocating is provided for the achievable region. Simulation results demonstrate that when the backhaul capacity is relatively large, the proposed scheme outperforms the existing achievability scheme without the superposition structure.

References:

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Memo

Memo:

Biographies: Yi Xiao(1990—), male, graduate; Liu Nan(corresponding author), female, doctor, professor, nanliu@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.61571123, 61521061), the Research Fund of National Mobile Communications Research Laboratory of Southeast University(No. 2017A03), Qing Lan Project.
Citation: Yi Xiao, Wu Mingzhan, Liu Nan. A superposition scheme for downlink multicell processing with finite backhaul capacity[J].Journal of Southeast University(English Edition), 2017, 33(3):253-259.DOI:10.3969/j.issn.1003-7985.2017.03.001.

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