Combining Bandwidth Borrowing and Reservation in Cellular Networks
| Autor: | Roland Zander, Johan M. Karlsson |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Computer Networks and Communications
business.industry Computer science Quality of service Reservation Admission control Blocking (statistics) Reduction (complexity) Operator (computer programming) Hardware and Architecture Cellular network Bandwidth (computing) Electrical and Electronic Engineering business Computer network |
| Zdroj: | International Journal of Wireless Information Networks. 12:187-201 |
| ISSN: | 1572-8129 |
| DOI: | 10.1007/s10776-005-0004-z |
| Popis: | In the third generation cellular networks and beyond, a wide variety of different services are/will be provided by the operators. Out of QoS reasons, it is preferable to assign higher priority to certain connection types. These include calls carrying delay-sensitive services and already ongoing calls. In this paper, a prioritization method combining bandwidth borrowing and reservation, called BBR, will be presented. BBR monitors the rate-adaptiveness of the ongoing calls in a cell. Simultaneously, advanced movement predictions are applied to estimate the arrival rate to each cell. If it is determined that the use of bandwidth borrowing (temporarily reducing the data rate of other connections in the same cell) is not sufficient to support the high priority calls that are expected to arrive, a portion of the assigned bandwidth to the cell is exclusively reserved for these calls to prevent call dropping. The scheme enables the operator to increase the average user satisfaction in the network. This is achieved by defining appropriate penalty functions for the events of blocking, dropping and bandwidth reduction of a call. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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