本文選題：認(rèn)知無線電　切入點(diǎn)：能量效率　出處：《電子科技大學(xué)學(xué)報(bào)》2017年05期

【摘要】：針對異構(gòu)認(rèn)知網(wǎng)絡(luò)場景,提出了一種主次系統(tǒng)"雙贏"的高能效協(xié)作通信機(jī)制。在滿足主次系統(tǒng)"雙重"速率Qo S要求下,該機(jī)制允許次級用戶在接入主系統(tǒng)協(xié)助主用戶傳輸數(shù)據(jù)的同時(shí),換取一部分授權(quán)頻譜資源來實(shí)現(xiàn)自身數(shù)據(jù)在異構(gòu)網(wǎng)中的傳輸分流,以此提升次級能效。本文研究了該機(jī)制的次級加權(quán)能效最大化非凸資源優(yōu)化問題,結(jié)合參數(shù)化的分式規(guī)劃算法和黃金分割法提出了一種資源分配的迭代算法。仿真結(jié)果表明,所提機(jī)制在不降低主用戶通信性能的情況下,提升了次級系統(tǒng)傳輸能效,實(shí)現(xiàn)了主次系統(tǒng)傳輸"雙贏"的目的。
[Abstract]:For heterogeneous cognitive network scenarios, this paper proposes a "win-win" cooperative communication mechanism for primary and secondary systems, which meets the requirements of "dual" rate QoS of primary and secondary systems. This mechanism allows secondary users to access the master system to assist the primary users to transmit data in exchange for a portion of authorized spectrum resources to realize the transmission of their own data in heterogeneous networks. In order to improve secondary energy efficiency, this paper studies the optimization of non-convex resources with sub-weighted energy efficiency maximization, and proposes an iterative algorithm for resource allocation combined with parameterized fractional programming algorithm and golden section method. The simulation results show that, Without reducing the communication performance of the primary user, the proposed mechanism improves the transmission efficiency of the secondary system and realizes the goal of "win-win" transmission of the primary and secondary systems.
【作者單位】： 電子科技大學(xué)通信與信息工程學(xué)院;四川廣播電視大學(xué)工程技術(shù)學(xué)院;
【基金】：國家自然科學(xué)基金(61471089,61071099) 四川省教育廳科研項(xiàng)目(16ZB0504)
【分類號】：TN925

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