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In this work, Call Admission Control Schemes which is one of the efficient resource management techniques are analyzed and proposed a new call admission scheme by using the structure of data allowing available bandwidth allocation over Complete-Partitioning Sharing technique. Voice calls are real-time services and needs fixed bandwidth, on the other hand, data calls are non-real time services and...
Popular areas, called hot spots, in cellular network experience continuous traffic congestion which needs a dynamic approach to deal with. In this paper, we propose and evaluate a dynamic allocation scheme that ensures guaranteed channel to various traffic to maintain their quality of service (QoS). Two traffic types are considered to compete for access to the limited channels available in the cell:...
The QoS requests of data traffic with lower priority in hotspot areas are not always satisfied in a traditional cellular wireless communication system. But on the other hand, about 60% of the channel slots allocated to a voice user is wasted due to the spurt of speech packets. In this paper, a cooperative strategy for transmitting data packets and speech spurt packets over the shared channel of voice...
In order to ensure the quality of broadband service in cellular networks, bandwidth resources are required more and more. But the wireless bandwidth resources in a cell are limited and fixed. A QoS-adaptive bandwidth allocation scheme based on measurement report real-time analysis is presented in the paper. It makes use of the measurement report frames and normalized QoS level to maximize the weight...
The concept of Logical Service Provision Number (LSPN) is proposed to evaluate the service provision capacity in multicast and unicast integrated multiclass service cellular networks. The tradeoff between call blocking probability and LSPN is investigated and an objective function of maximizing LSPN is proposed. To solve the optimal problem, the system is modeled as a 2K-dimensional Markov process...
In this paper, channel allocation scheme is studied for overlay wireless networks to optimize connection-level QoS. The contributions of our work are threefold. First, channel allocation scheme using both horizontal channel borrowing and vertical channel borrowing is presented and analyzed. When all the channels in a given cell are used, handoff requests can borrow channels from adjacent homogeneous...
In this letter we develop an expression for the approximate throughput guarantee violation probability (TGVP) for users in time-slotted networks for any scheduling algorithm with a given mean and variance of the bit-rate in a time-slot, and a given distribution for the number of time-slots allocated within a time-window. Based on this general result, we evaluate closed-form expressions for the TGVPs...
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