根據(jù)用戶數(shù)目妥善安排傳輸?shù)亩嘀方尤雲(yún)f(xié)議性能的理論分析
Theoretic Analysis on the Performance of User-Dependent Perfect-Scheduling Multiple Access Protocol
-
摘要: 該文基于有效競爭接入、高效無沖突輪詢傳輸?shù)乃枷敫倪M了根據(jù)用戶數(shù)目妥善安排傳輸?shù)亩嘀方尤?UPMA) 協(xié)議，根據(jù)業(yè)務(wù)需求對上下帶寬資源實行動態(tài)分配，使用有效的沖突解決策略保證節(jié)點盡快接入信道，采用高效的無沖突輪詢傳輸避免了傳輸開銷。該文還給出了協(xié)議的理論分析模型，并通過計算機仿真驗證了理論模型的正確性。理論值和仿真結(jié)果表明提出的協(xié)議可以提供高的通過量、較低的平均消息時延和較小的平均消息丟棄率。最后通過理論計算給出了在給定無競爭服務(wù)周期長度的情況下競爭接入周期的最佳長度。
-
關(guān)鍵詞:
- 多址接入?yún)f(xié)議;自組織算法;性能分析
Abstract: Based on the idea of contention reservation access and polling transmission, a modified User-dependent Perfect-scheduling Multiple Access (UPMA) protocol is proposed, the bandwidth can be allocated dynamically to the uplink and downlink according to the service requirement, the active node can access the channel rapidly by effective collision resolution scheme, and no transmission overhead will be wasted during transmission by the valid polling scheme. Meanwhile, the theoretic analytical model is proposed and its correctness is validated by simulation. The theoretic value and the simulation results show that the proposed protocol has a high throughput, low information delay and small information dropping probability. Finally, with the theoretic analysis, to a given length of polling period, the optimal length of contention access period is given. -
計量
- 文章訪問數(shù): 2097
- HTML全文瀏覽量: 60
- PDF下載量: 737
- 被引次數(shù): 0
下載:
