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Abstract
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Article Information:
Improvement in the Priority Handoff Scheme for Multi-Service Wireless Mobile Networks
Cheng-Gang Liu, Zhen-Hong Jia, Xi-Zhong Qin, Lei Sheng and Li Chen
Corresponding Author: Zhen-Hong Jia
Submitted: January 17, 2013
Accepted: February 22, 2013
Published: November 10, 2013 |
Abstract:
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In this study, a new handoff strategy to improve the performance of wireless mobile networks is presented. It has been found form this study that the dropping probability of handoff calls is drastically reduced compared to the existing method of channel reservation strategy of handoff calls and the performance of new calls can be improved. The strategy is that the new call should be delayed then it can use the last idle channel. The time that all the channels are holding has been shortened. Opportunities of the new call and handoff call occupancy channel are increased; the scheme also takes into account the priority of different data types and only when the high-priority data packets queue is empty, the data packets in low-priority data queue can be transmitted. Simulation results show that, to let the new voice call delay in the allowable range, can effectively reduce the dropping probability of handoff call and the blocking probability of high-priority data while improving the probability of new call to enter into the systems.
Key words: Handoff, Markova process, multi-service, priority, queuing theory, ,
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Cite this Reference:
Cheng-Gang Liu, Zhen-Hong Jia, Xi-Zhong Qin, Lei Sheng and Li Chen, . Improvement in the Priority Handoff Scheme for Multi-Service Wireless Mobile Networks. Research Journal of Applied Sciences, Engineering and Technology, (20): 3838-3846.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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