無線帶內(nèi)全雙工信道的多用戶最優(yōu)分配問題模型

王文鼐; 黃亞男; 吳煒; 王斌

doi:10.11999/JEIT170538

無線帶內(nèi)全雙工信道的多用戶最優(yōu)分配問題模型

doi: 10.11999/JEIT170538

基金項目:

國家自然科學(xué)基金(61401234)

計量
- 文章訪問數(shù): 1550
- HTML全文瀏覽量: 213
- PDF下載量: 263
- 被引次數(shù): 0
出版歷程
- 收稿日期: 2017-06-06
- 修回日期: 2017-11-13
- 刊出日期: 2018-03-19

An Optimal Allocation Model of Wireless In-band Full-duplex Channel for Multiple Access

Funds:

The National Natural Science Foundation of China (61401234)

摘要

摘要: 無線帶內(nèi)全雙工(IBFD)具有頻譜效率倍增潛力，應(yīng)用到多用戶接入時，共享信道的優(yōu)化分配將決定系統(tǒng)容量的實際增益。該文分析多用戶爭用沖突的干擾特性及鏈路分配的約束條件，以容量最大為優(yōu)化目標(biāo)，針對雙向全雙工(BFD)、全雙工中繼(FDR)以及兩者混合的傳輸模式，建立信道資源分配的問題模型。通過典型站點分布的最優(yōu)解計算，分析IBFD系統(tǒng)相對半雙工(HD)的容量增益。結(jié)果表明，BFD有理想的100%增益，而FDR有較大變化范圍(最低增益25%)。此外，計算發(fā)現(xiàn)，站點間傳輸鏈路呈現(xiàn)1維鏈型結(jié)構(gòu)的容量增益明顯優(yōu)于2維平面分布的鏈路結(jié)構(gòu)。
- 無線帶內(nèi)全雙工多用戶資源分配 /
- 最優(yōu)化問題模型 /
- 雙向全雙工 /
- 全雙工中繼 /
- 系統(tǒng)容量
Abstract: The potential of wireless In-Band Full-Duplex (IBFD) in doubling spectral efficiency raises a special issue in channel allocation for Multi-user applications in capacity improvement. This paper presents an analysis on mutual interferences, contention conflicting and allocation constraints for different modes of full-duplex transmission. The maximization number of transmission links is chosen as the objective of multi-user system optimization, and a mathematic programming problem of IBFD channel allocation for three transmission modes, including Bidirectional Full-Duplex (BFD), Full-Duplex Relay (FDR) and the mixed of two is proposed. The exact optimal solutions are researched for two kinds of typical topology to find the capacity improvement of IBFD to Half-Duplex (HD). The results show that BFD multi-user system has an ideal capacity gain 100% in relative to HD, while FDR reveals a wide range of gain with 25% in the lowest. In addition, the gain of one dimensional chain of stations is found significantly superior to that of two-dimensional distribution.
- In-Band Full-Duplex (IBFD) multi-user resource allocation /
- Model of optimization problem /
- Bidirectional Full-Duplex (BFD) /
- Full-Duplex Relay (FDR) /
- System capacity

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參考文獻(xiàn)(18)

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