發(fā)布時(shí)間：2018-11-10 12:01

【摘要】：為解決異構(gòu)網(wǎng)絡(luò)結(jié)構(gòu)下負(fù)載分布不均衡問(wèn)題,提出一種基于D2D中繼傳輸?shù)呢?fù)載均衡策略,將宏小區(qū)內(nèi)服務(wù)質(zhì)量較差的用戶轉(zhuǎn)移到空閑微小區(qū),將釋放后的資源分配給無(wú)法接入的孤立用戶通信;由于D2D中繼鏈路復(fù)用宏小區(qū)資源會(huì)給宏小區(qū)用戶帶來(lái)干擾,以減小復(fù)用干擾為目的,提出一種基于能耗最優(yōu)的中繼選擇算法。仿真結(jié)果表明,所提負(fù)載均衡策略有效提升了系統(tǒng)性能,所提中繼選擇算法能有效降低系統(tǒng)功耗,減少異構(gòu)網(wǎng)絡(luò)用戶之間的干擾。
[Abstract]:In order to solve the problem of unbalanced load distribution in heterogeneous network structure, a load balancing strategy based on D2D relay transmission is proposed to transfer users with poor quality of service in macro cell to idle microcell. Allocating the released resources to isolated users who cannot access them; Since D2D relay link multiplexing macro cell resources will bring interference to macro cell users, a relay selection algorithm based on optimal energy consumption is proposed in order to reduce multiplexing interference. Simulation results show that the proposed load balancing strategy can effectively improve the performance of the system, and the proposed relay selection algorithm can effectively reduce the power consumption of the system and reduce the interference between users in heterogeneous networks.
【作者單位】： 西安郵電大學(xué)通信與信息工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(61501371) 國(guó)家863高技術(shù)研究發(fā)展計(jì)劃基金項(xiàng)目(2014AA01A703) 陜西省自然科學(xué)基礎(chǔ)研究基金項(xiàng)目(2011JM8027)
【分類號(hào)】：TN929.5

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