合作認(rèn)知無線網(wǎng)絡(luò)中能效最優(yōu)資源分配

曲樺; 趙永強(qiáng); 趙季紅; 閆飛宇; 徐西光

doi:10.11999/JEIT170671

合作認(rèn)知無線網(wǎng)絡(luò)中能效最優(yōu)資源分配

doi: 10.11999/JEIT170671

1.
(西安交通大學(xué)電信學(xué)院西安 710049) ②(西安郵電大學(xué)通信與信息工程學(xué)院西安 710061)

基金項(xiàng)目:

國家自然科學(xué)基金(61372092, 61531013)

計(jì)量
- 文章訪問數(shù): 1208
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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2017-07-07
- 修回日期: 2018-01-29
- 刊出日期: 2018-05-19

Energy Efficient Resource Allocation in Cooperative Cognitive Radio Networks

1.
(School of Electronics and Information Engineering, Xi&rsquo

Funds:

The National Natural Science Foundation of China (61372092, 61531013)

摘要

摘要: 針對能量受限的合作認(rèn)知網(wǎng)絡(luò)，該文研究在保證主用戶服務(wù)質(zhì)量要求下，認(rèn)知用戶能量效率最大化問題。認(rèn)知用戶利用信能同傳技術(shù)接收主用戶信號，并采用解碼轉(zhuǎn)發(fā)協(xié)議協(xié)助主用戶通信?；诜质揭?guī)劃和引入輔助變量將原始非凸問題轉(zhuǎn)換為凸優(yōu)化問題進(jìn)行求解，并提出一種迭代的資源分配算法。仿真結(jié)果表明，所提算法能夠快速收斂于最優(yōu)解。與能量合作方案相比，該文所采用方案能量效率顯著提高，同時能更好地保證主用戶服務(wù)質(zhì)量要求。
- 合作認(rèn)知網(wǎng)絡(luò) /
- 能量效率 /
- 信能同傳 /
- 凸優(yōu)化
Abstract: Considering the energy-constrained cooperative cognitive radio networks, the maximization problem of Energy Efficiency (EE) with Quality of Service (QoS) constraint of primary user is investigated. Secondary user receives the signals of primary user using Simultaneous Wireless Information and Power Transfer (SWIPT) and serves as a relay with decode-and-forward protocol. Based on fractional programming and introducing auxiliary variables, the original optimization issue is converted to a convex issue and solved, and an iterative algorithm for resource allocation is proposed. Simulation results demonstrate that the proposed algorithm converges to the optimal solution quickly. Compared with the energy-cooperation strategy, the proposed strategy achieves a higher EE and protects the QoS of primary user better.
- Cooperative cognitive radio networks /
- Energy efficiency /
- Simultaneous Wireless Information and Power Transfer (SWIPT) /
- Convex optimization

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參考文獻(xiàn)(18)

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