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A Review of Call Admission Control Schemes in Wireless Cellular Networks
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A Review of Call Admission Control Schemes in Wireless Cellular Networks
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Journal Article
A Review of Call Admission Control Schemes in Wireless Cellular Networks
2021
Overview
Nowadays, users of wireless cellular networks are ever increasing, but wireless link bandwidth is limited. Due to heavy traffic in this network and frequent demands of its consumers, it is mandatory to use network resources efficiently. During congestion period, resource fluctuations and channel quality variations may arise because of user mobility, and the cells need more resources to maintain its Quality of Service (QoS). For regulating the mobile users based upon expedient resources, a Call Admission Control (CAC) scheme is mandatory. This scheme is substantial in wireless networks to maximize resource utilization by admitting more calls whereas maintaining the QoS of ongoing services. This survey gives a general idea of CAC approaches in wireless cellular networks; in particular, we focus the importance of CAC in this modern communication era and classify it based on the literature. Various design considerations of CAC schemes are presented and different methods for implementing CAC are investigated here; in the end, we mentioned certain research issues and challenges of next generation wireless networks.
Publisher
Springer US,Springer Nature B.V
