【摘要】：本文首先根據(jù)認(rèn)知無線電實(shí)際環(huán)境,在一類虛警事件和三類漏檢事件的影響下,對(duì)M/G/1排隊(duì)模型進(jìn)行修正,給出主用戶及次級(jí)用戶數(shù)據(jù)傳輸時(shí)間的一階矩和二階矩的解析解,得到M/G/1-R(M/G/1-Revised)排隊(duì)模型.其次在多優(yōu)先級(jí)次級(jí)用戶情境下,提出一種基于系統(tǒng)代價(jià)的冒泡式排隊(duì)接入方案(B-M/G/1-R,Bubble-M/G/1-Revised),給出該方案能夠最小化系統(tǒng)代價(jià)的證明過程.仿真與數(shù)值計(jì)算驗(yàn)證了M/G/1-R的有效性,在實(shí)際認(rèn)知無線電環(huán)境下,B-M/G/1-R能夠獲得最小的系統(tǒng)代價(jià)和次級(jí)用戶數(shù)據(jù)傳輸中斷次數(shù).
[Abstract]:This paper first modifies the M/G/1 queuing model under the influence of a class of false alarm events and three kinds of missed detection events according to the actual environment of cognitive radio. The analytical solutions of the first and second moments of data transmission time for primary and secondary users are given and the M/G/1-R (M/G/1-Revised) queuing model is obtained. Secondly, in the case of multi-priority secondary users, this paper proposes a system cost based bubbling queueing access scheme (B-M / G / 1-R Bubble-M / G / 1-revised), and gives the proof process that the scheme can minimize the system cost. Simulation and numerical calculation show the effectiveness of M/G/1-R. In the actual cognitive radio environment, B-M/G/1-R can obtain the minimum system cost and the number of secondary user data transmission interruptions.
【作者單位】： 北京郵電大學(xué)信息與通信工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金(No.61171176) 國(guó)家科技重大專項(xiàng)(No.2010ZX03006-006)
【分類號(hào)】：TN925

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 馬志W(wǎng)，

本文編號(hào)：2405241