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摘要：在LTE網(wǎng)絡(luò)下部署D2D系統(tǒng)能有效提升系統(tǒng)資源利用率，但是，D2D系統(tǒng)共享蜂窩系統(tǒng)資源時會產(chǎn)生系統(tǒng)間干擾，影響蜂窩通信質(zhì)量和系統(tǒng)總吞吐量。本文基于干擾識建議了一種D2D（Device-to-Device）準(zhǔn)入控制優(yōu)化算法，通過在基站端感知D2D通信對蜂窩用戶產(chǎn)生的干擾，使D2D選擇復(fù)用干擾值最小的蜂窩用戶資源，并以D2D共享資源時的總吞吐量為參數(shù)，對D2D調(diào)度優(yōu)先級進(jìn)行排序。文章根據(jù)D2D通信和蜂窩通信的實時特性引入了兩種路徑衰耗模型，仿真結(jié)果表明，與隨機(jī)復(fù)用算法相比，該算法在降低系統(tǒng)總干擾的前提下，保障蜂窩用戶通信質(zhì)量，增加D2D接入成功率，提升系統(tǒng)吞吐量。 關(guān)鍵字：D2D準(zhǔn)入、干擾識別、優(yōu)先級、吞吐量 |
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【答案】應(yīng)助回帖
★
真強(qiáng)必勝: 金幣+1, ok 2013-12-24 21:26:45
真強(qiáng)必勝: 金幣+1, ok 2013-12-24 21:26:45
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摘要：在LTE網(wǎng)絡(luò)下部署D2D系統(tǒng)能有效提升系統(tǒng)資源利用率，但是，D2D系統(tǒng)共享蜂窩系統(tǒng)資源時會產(chǎn)生系統(tǒng)間干擾，影響蜂窩通信質(zhì)量和系統(tǒng)總吞吐量。本文基于干擾識建議了一種D2D（Device-to-Device）準(zhǔn)入控制優(yōu)化算法，通過在基站端感知D2D通信對蜂窩用戶產(chǎn)生的干擾，使D2D選擇復(fù)用干擾值最小的蜂窩用戶資源，并以D2D共享資源時的總吞吐量為參數(shù)，對D2D調(diào)度優(yōu)先級進(jìn)行排序。文章根據(jù)D2D通信和蜂窩通信的實時特性引入了兩種路徑衰耗模型，仿真結(jié)果表明，與隨機(jī)復(fù)用算法相比，該算法在降低系統(tǒng)總干擾的前提下，保障蜂窩用戶通信質(zhì)量，增加D2D接入成功率，提升系統(tǒng)吞吐量。 關(guān)鍵字：D2D準(zhǔn)入、干擾識別、優(yōu)先級、吞吐量 Abstract: D2D(Device-to-Device) system deployment in the LTE Internet could improve resource utilization rate of the system effectively, but when sharing the resource of cellular system, the D2D system will generate interference problem between systems, which will influence the communication quality of cellular system and its total throughput. Based on the interface distinguish, a kind of D2D(Device-to-Device)access control optimization algorithm is proposed in this paper. This algorithm perceives interfaces from D2D communication to cellularsubscribers at the base station terminal, which makes the D2d reuse the resource of cellular subscriber with the smallest annoyance value, and uses total throughput as a parameter when D2D system shares sources in order to rank the priority of the D2D dispatching. According to the real-time characteristics of D2D and cellular communication systems, two path loss models are introduced in this paper, and the simulation result demonstrates compared with random reuse algorithm, this algorithm can gurantee the communication quality of the cellular suscribers, increase the access success rate of D2D and enhance the system througput on the premise of reduceing total interfaces of the system. Key words: D2D access; interference distinguish; priority; throughput; |
2樓2013-11-23 11:35:26
【答案】應(yīng)助回帖
★ ★ ★ ★
nothingwb(RXMCDM代發(fā)): 金幣+4, 最佳答案！歡迎常來！ 2014-01-21 00:04:59
RXMCDM: 翻譯EPI+1 2014-01-21 00:05:26
nothingwb(RXMCDM代發(fā)): 金幣+4, 最佳答案！歡迎常來！ 2014-01-21 00:04:59
RXMCDM: 翻譯EPI+1 2014-01-21 00:05:26
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（上面有一兩個小錯誤~~~~）0Abstract: D2D(Device-to-Device) system deployment in the LTE Internet could improve resource utilization rate of the system effectively, but when sharing the resource of cellular system, the D2D system will generate interference problem between systems, which will influence the communication quality of cellular system and its total throughput. Based on the interface distinguish, a kind of D2D(Device-to-Device)access control optimization algorithm is proposed in this paper. This algorithm perceives interfaces from D2D communication to cellular subscribers at the base station terminal, which makes the D2d reuse the resource of cellular subscriber with the smallest annoyance value, and uses total throughput as a parameter when D2D system shares sources in order to rank the priority of the D2D dispatching. According to the real-time characteristics of D2D and cellular communication systems, two path loss models are introduced in this paper, and the simulation result demonstrates compared with random reuse algorithm, this algorithm can guarantee the communication quality of the cellular subscribers, increase the access success rate of D2D and enhance the system throughput on the premise of reducing total interfaces of the system. Key words: D2D access; interference distinguish; priority; throughput; |
3樓2013-11-23 11:36:58
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