(54.236.58.220) 您好!臺灣時間:2021/03/06 22:54
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果

詳目顯示:::

我願授權國圖
: 
twitterline
研究生:何金源
研究生(外文):Jin-Yuan Her
論文名稱:具有保留頻道及有限佇列的蜂巢式行動通訊系統之性能分析
論文名稱(外文):Performance Analysis of Cellular Mobile Communication Systems nels and Finite Queues
指導教授:李程輝
指導教授(外文):Tsern-Huei Lee
學位類別:碩士
校院名稱:國立交通大學
系所名稱:電信研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:1993
畢業學年度:81
語文別:中文
論文頁數:46
中文關鍵詞:交遞保留頻道多重呼叫
外文關鍵詞:HandoffGuard ChannelMultiple-Call
相關次數:
  • 被引用被引用:0
  • 點閱點閱:64
  • 評分評分:系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
地台致使通訊呼叫之訊號強度下降時,為維持通訊品質,必須將呼叫交遞
j的頻道。然而,由於蜂巢式行動通訊系統其頻道數量的限制,交遞呼
叫將因無法取得頻道而導致通訊中斷。為求降低通訊中斷的機率, W道予
交遞呼叫所專用,並設置交遞與新建呼叫的有限佇列 堜I叫的阻絕機率不
致過高,且欲探討其與通訊中斷機率之性能交換(trade吾人於另一系統模
型中,對於新建與交遞呼叫皆分別設置其保留頻道。 ^人利用佇列觀察的
狀態變遷特性,以簡易的反覆矩陣求解法來取代計算複雜度呈指數擴增的
Mason's吾人將行動台依其通訊中的呼叫個數來分類,以分析 暋D。由分
析結果所示,保留頻道與有限佇列兩者中,前者對於 剪蒫菕F而新建呼
叫保留頻道的作法較適用於蜂巢居留時間較大以及行動_系統。

When a mobile moves away from the base station, the
receiveddecreases. In order to maintain the quality of
communication service, thee handed off to another idle channel
on which the received power level is higher.e of limited
channels of a cellular mobile communication system, the handoff
call mightided with a channel and be forced to terminate before
completion. Forced terminationsy users to be interruptions of
service. The phenomenon is considerably more obtrusive than new-
callhould therefore be avoided as much as possible. In this
thesis, an analytical model with guard channelshandoff calls,
and with finite handoff-call queue and finite new-call queue,
is presented. In addition, in order to keep the new-call
blocking probability not too high explore the trade-off between
termination probability andng probability, another analytical
modal with new-call and handoff-call guard channels is
presented. In this thesis, we utilize the transition
characteristics of from the aspect of queue observer to replace
Mason's formula, by the complexity of calculation increases on
an exponential rate, simple iterative matrix computations.
Furthermore, we classify according to the number of calls in
progress to analyze the handoff problem. From the numerical
results, it is found that have more notable effects on system
performance than finitet new-call guard channels is suitable
for a system in which the is longer and the number of mobiles
is fewer.

QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
系統版面圖檔 系統版面圖檔