An Adaptive Handover Decision Algorithm for Heterogenous Wireless Networks

Author(s):  
Mario Pink ◽  
Thomas Pietsch ◽  
Hartmut König
2013 ◽  
Vol 9 (4) ◽  
pp. 315-330 ◽  
Author(s):  
Zdenek Becvar ◽  
Pavel Mach

A deployment of femtocells to mobile wireless networks can increase a throughput of indoor as well as outdoor users. On the other hand, it introduces several problems such as serious interference or high number of performed handovers. This paper is focused on mitigation of redundant handovers to femtocells with open or hybrid access. The redundant handovers decrease user's throughput due to a management overhead and due to introduced interruption. We design a novel handover decision algorithm based on an estimation of throughput gain reached by a handover to a femtocell. In the proposal, the handover is initiated only if the estimated gain in user's throughput exceeds a predefined threshold. As the results indicate, high ratio of eliminated redundant handovers is achieved by the designed procedure. Moreover, a drop in user's throughput due to the handover procedure is reduced by the proposed algorithm and thus the user's throughput is increased.


Vertical handoff takes place when a mobile incurable button from one network to one more (e.g., from WLAN to CDMA 1xRTT). The purpose of this paper is to establish the problems under which vertical handoff need to be done. The trouble is developed as a Markov choice procedure. A web link benefit feature and also a signaling price feature are presented to record the tradeoff in between the network sources made use of by the link and also the signaling as well as handling tons sustained on the network. Commonly, a mobile phone might be transferred to attain the procedures of vertical handover, thinking about just one standard, that is, the received signal strength (RSS). Making use of a solitary requirement might trigger solution disruption, an out of balance network lots, and also an ineffective vertical handover. In this paper, we recommend boosted vertical handover decision algorithm based upon several standards in the heterogeneous wireless network. As well as additionally In this paper, we research regarding 5th generation system.


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