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基于分層調(diào)制的物理層網(wǎng)絡(luò)編碼研究

唐猛,  陳建華,  張艷,  張榆鋒

唐猛, 陳建華, 張艷, 張榆鋒. 基于分層調(diào)制的物理層網(wǎng)絡(luò)編碼研究[J]. 電子與信息學(xué)報, 2016, 38(10): 2568-2574. doi: 10.11999/JEIT151470
引用本文: 唐猛, 陳建華, 張艷, 張榆鋒. 基于分層調(diào)制的物理層網(wǎng)絡(luò)編碼研究[J]. 電子與信息學(xué)報, 2016, 38(10): 2568-2574. doi: 10.11999/JEIT151470
TANG Meng, CHEN Jianhua, ZHANG Yan, ZHANG Yufeng. Physical-layer Network Coding Based on Hierarchical Modulation[J]. Journal of Electronics & Information Technology, 2016, 38(10): 2568-2574. doi: 10.11999/JEIT151470
Citation: TANG Meng, CHEN Jianhua, ZHANG Yan, ZHANG Yufeng. Physical-layer Network Coding Based on Hierarchical Modulation[J]. Journal of Electronics & Information Technology, 2016, 38(10): 2568-2574. doi: 10.11999/JEIT151470

基于分層調(diào)制的物理層網(wǎng)絡(luò)編碼研究

doi: 10.11999/JEIT151470
  • 2.

    (云南大學(xué)信息學(xué)院 昆明 650091) ②(云南大學(xué)軟件學(xué)院 昆明 650091)

基金項目: 

國家自然科學(xué)基金(61062005, 61561049)

Physical-layer Network Coding Based on Hierarchical Modulation

  • 1.

    (School of Information Science and Engineer, Yunnan University, Kunming 650091, China)

  • 2.

    (School of Information Science and Engineer, Yunnan University, Kunming 650091, China)

Funds: 

The National Natural Science Foundation of China (61062005, 61561049)

  • 摘要: 在實際的移動通信環(huán)境中，信道的狀態(tài)復(fù)雜多變，該文針對雙向中繼信道的非對稱性，提出采用分層調(diào)制方式的物理層網(wǎng)絡(luò)編碼方案。首先構(gòu)建源節(jié)點、中繼節(jié)點均采用分層(2/4-PSK)調(diào)制的雙向中繼通信系統(tǒng)模型；其次給出了中繼節(jié)點的物理層網(wǎng)絡(luò)編碼解調(diào)及映射規(guī)則，推導(dǎo)出加性高斯白噪聲下中繼誤比特率及端到端誤比特率理論計算公式；最后仿真驗證了理論分析結(jié)果。與采用傳統(tǒng)QPSK調(diào)制技術(shù)的物理層網(wǎng)絡(luò)編碼相比，該方案利用分層調(diào)制的技術(shù)優(yōu)勢，確保較優(yōu)信道的高速率傳輸，也兼顧了較差信道的傳輸可靠性。
    Abstract: In wireless communication network, the channel state information is complicated. A joint Hierarchical Modulation and Physical-layer Network Coding (HM-PNC) scheme is proposed for the asymmetric Two-Way Relay Channel (TWRC). In this scheme, the two source nodes and the relay node adopt the hierarchical modulation technology (2/4-PSK). In the relay node, a special demodulation/modulation and PNC mapping rule is designed. Corrupted by Additive White Gaussian Noise (AWGN), the relay Bit Error Ratio (BER) and the end-to-end BER expressions are derived. Simulation results show that the HM-PNC scheme not only improves the data rate in better links, but also takes into account the transmission reliability of the poor channels. Compared with the traditional QPSK-PNC scheme, the HM-PNC scheme has better mobile performance.
    • HTML全文
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出版歷程
  • 收稿日期:  2015-12-24
  • 修回日期:  2016-05-23
  • 刊出日期:  2016-10-19

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