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RSU-assisted VANETs should provide vehicles and mobile users with reliable safety applications as well as various non-safety services with different QoS levels. We present a dedicated multi-channel MAC plus a QoS-provision channel allocation scheme based on the EDCA channel throughput analysis to improve the QoS performance of non-safety services for the RSU-assisted centralized VANETs. Simulation...
The ability to adjust the allocated bandwidth of ongoing calls to cope with wireless network resource fluctuations is becoming increasingly important. In this paper, we describe a utility-based bandwidth adaptation scheme for multi-class traffic quality-of-service (QoS) provisioning in wireless networks. With the proposed scheme, each call is assigned a utility function according to its adaptive characteristics...
The allocation of scarce resources to support realtime multimedia services with different quality of service (QoS) requirements is a fundamental problem in wireless cellular networks. In this paper, we propose a new call admission control (CAC) and resource reservation scheme for cellular-based multimedia wireless networks. The well-known CAC guard channel policy is modified to be applicable for different...
In this paper we propose an efficient utility-based bandwidth adaptation scheme for multimedia wireless networks. When the network is overloaded the bandwidth of ongoing calls are degraded dynamically to accommodate the new and handoff calls.
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