Earticle

초록

영어

In heterogeneous wireless networks (HWNs), a scheme called Joint Call Admission Control (JCAC) is demanding for deciding whether or not an incoming service request will be accepted. In this paper, we propose an optimal JCAC policy for HWNs based on semi-Markov decision process (SMDP) to achieve the optimal resource management scheme in terms of minimal the network cost and acquire the required quality of service (QoS) of mobile user. Furthermore, an improved value iteration algorithm with multi-dimensional threshold structure is presented. Numerical results show that the proposed JCAC policy is the overall optimal policy. The proposed algorithm is effective for high QoS performance by reducing the probabilities of dropping and blocking calls. The optimal JCAC policy is ratified by the current trend in the design of next generation wireless networks (NGWNs).

목차

Abstract
 1. Introduction
 2. System Model
  2.1 Network Structure
  2.2 The System Optimal Objective
  2.3 Model of JCAC
  2.4 Optimal Policy
 3. Performance Measurement
 4. Simulation and Performance Assessment
  4.1 The Optimal Policy
  4.2 System Performance
 5. Conclusions
 References

키워드

저자

• YuanYuan ZHANG [ College of Computer Science, BEIJING University of Technology 100 Ping Le Yuan, Chaoyang District, Beijing 100124, China , College of Information, Central University of Finance and Economics 39 South College Road, Haidian District, Beijing 100081, China ]
• Chuang-bai XIAO [ College of Computer Science, BEIJING University of Technology 100 Ping Le Yuan, Chaoyang District, Beijing 100124, China ]
• Jian WANG [ College of Information, Central University of Finance and Economics 39 South College Road, Haidian District, Beijing 100081, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Future Generation Communication and Networking

• 간기

  격월간

• pISSN

  2233-7857

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605