Distributed Association Method Assisted by Cell for Efficiency Enhancement of Wireless Networks

• Main Author: Jaesung Park
• Format: Article
• Language: English
• Published: Hindawi Limited 2017-01-01
• Series: Mobile Information Systems
• Online Access: http://dx.doi.org/10.1155/2017/9701267

In this paper, we propose a distributed cell association scheme called cell-guided association method (CGAM) to improve the efficiency of a wireless network. In CGAM, MSs attempt to associate with their best cells. However, unlike the conventional methods, cells do not passively accept the association requests of MSs. Instead, a cell determines whether to accept an association request or not by considering the performance of MSs already associated with it and that of the requesting MS. If a cell cannot provide a certain level of service to them, it rejects the association request and guides the requesting MS to select another cell that gives the next maximum performance metric to the MS. Since our method takes the cell resource usage into consideration, it can increase the resource efficiency of a wireless network while enhancing the overall data rate provided to MSs by balancing the number of MSs in a cell. Through performance comparisons by simulation studies, we verify that CGAM outperforms maximum SINR-based method and QoS-based method in terms of the total data rate provided by a system and outage probabilities of MSs.