Fairness-based joint call admission control for heterogeneous wireless networks： an SMDP approach

• Published in: Science China. Information sciences Vol. 57; no. 8; pp. 58 - 69
• Main Authors: Liu, GuoQing, Sheng, Min, Wang, XiJun, Li, Ying, Li, YuZhou
• Format: Journal Article
• Language: English
• Published: Heidelberg Science China Press 01.08.2014; Springer Nature B.V
• Subjects: Admission control; Algorithms; Computer Science; Heterogeneity; Information Systems and Communication Service; Markov processes; Networks; Research Paper; Resource allocation; Revenue; Revenues; SMDP; Terminals; Traffic engineering; Traffic flow; Wireless networks; 业务类别; 公平性; 半马尔可夫决策过程; 呼叫接纳控制; 基础; 异构无线网络; 资源分配; multi-mode terminals; heterogeneous wireless networks (HWNs); joint radio resource management (JRRM); joint call admission control (JCAC); semi-Markov decision process (SMDP)
• ISSN: 1674-733X; 1869-1919
• DOI: 10.1007/s11432-014-5128-2

In heterogeneous wireless networks, both terminal heterogeneity and network heterogeneity give rise to the fairness problem of resource allocation. Due to the capability of exploiting the resources of multiple networks, the behavior of multi-mode terminals will have a great effect on single-mode terminals, and this influence becomes more severe when considering the different demands of different traffic. In this article, we propose a novel joint call admission control （JCAC） scheme to address this problem. The JCAC problem is modeled as a semi-Markov decision process （SMDP） with the aim of maximizing the average network revenue under tile constraints of the fairness among different terminals and traffic classes. Based on the SMDP, we design an algorithm to achieve a good tradeoff between revenue and fairness by dynamically adjusting the threshold of fairness constraints imposed on heterogeneous terminals. Simulation results show that the proposed scheme can significantly improve the fairness among heterogeneous terminals and guarantee the priority and fairness among different traffic classes with little loss of network revenue compared with other schemes.