基于D2D通信的蜂窩數(shù)據(jù)分流補(bǔ)償機(jī)制設(shè)計(jì)
發(fā)布時(shí)間:2018-04-20 13:07
本文選題:數(shù)據(jù)分流 + 設(shè)備到設(shè)備通信; 參考:《系統(tǒng)工程與電子技術(shù)》2017年09期
【摘要】:設(shè)備到設(shè)備(device to device,D2D)通信允許鄰近用戶使用蜂窩網(wǎng)絡(luò)頻段直接通信,既能分流部分蜂窩數(shù)據(jù),減輕基站負(fù)擔(dān),又能提升服務(wù)質(zhì)量。但由于信息不對(duì)稱,蜂窩網(wǎng)絡(luò)不知道用戶的類型參數(shù),無法準(zhǔn)確提供合理補(bǔ)償,以激勵(lì)用戶參與數(shù)據(jù)分流;谄跫s理論設(shè)計(jì)了一種分流補(bǔ)償機(jī)制,首先設(shè)計(jì)蜂窩網(wǎng)絡(luò)收益函數(shù)和分流用戶代價(jià)函數(shù)及其二者的效用;然后基于用戶類型參數(shù)服從均勻分布設(shè)計(jì)補(bǔ)償機(jī)制,驗(yàn)證了該機(jī)制能滿足個(gè)人理性和激勵(lì)相容條件,分析了該機(jī)制的最優(yōu)性能;最后與正比例補(bǔ)償機(jī)制和完全信息補(bǔ)償機(jī)制進(jìn)行對(duì)比仿真,結(jié)果表明,本文設(shè)計(jì)的分流補(bǔ)償機(jī)制既能保證用戶愿意參與數(shù)據(jù)分流,也鼓勵(lì)用戶報(bào)告自身真實(shí)的類型參數(shù),還能獲得接近于完全信息補(bǔ)償機(jī)制下的效用和性能。
[Abstract]:Device to device to deviceD2D) communication allows neighboring users to use cellular network frequency bands to communicate directly, which not only distributes part of cellular data, lightens the burden of base stations, but also improves the quality of service. However, due to asymmetric information, cellular networks do not know the type of user parameters, can not accurately provide reasonable compensation to encourage users to participate in data streaming. Based on the contract theory, a shunt compensation mechanism is designed. Firstly, the revenue function and the cost function of the cellular network and the utility of the two functions are designed, and then the compensation mechanism is designed based on the user type parameters. It is verified that this mechanism can satisfy individual rationality and incentive compatibility conditions, and the optimal performance of the mechanism is analyzed. Finally, the simulation results are compared with the positive proportional compensation mechanism and the complete information compensation mechanism, and the results show that, The shunt compensation mechanism designed in this paper can not only ensure that users are willing to participate in data streaming, but also encourage users to report their own true type parameters, and can also obtain the utility and performance close to the complete information compensation mechanism.
【作者單位】: 重慶大學(xué)通信工程學(xué)院;
【基金】:國(guó)家自然科學(xué)基金(61501065) 重慶市自然科學(xué)基金重點(diǎn)項(xiàng)目(CSTC2013JJB40004)資助課題
【分類號(hào)】:TN929.5
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本文編號(hào):1777873
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